Chapter 6: The Five-Year Conversation

77 claims, 12 marked for safety

56 confirmed
11 amended
1 partly confirmed
9 unresolved
12 marked for safety

Filter the rows

F1 Safety amended Story Keeping the seed; Bench 2.5; failures

Ergot: alkaloids, gangrene/convulsions, St Anthony's fire; brine at ~1/6 salt (160 g/l) floats sclerotia, wash and dry at once; EU limit 0.5 mg/kg alkaloids in rye flour falling to 0.25 by 2028

To check against: 27, 124; Reg. (EU) 2023/915
The verdict: AMENDED
Found: publications.europa.eu/resource/celex/32023R0915 (Reg. (EU) 2023/915 Annex I, 1.8.2.3 and 1.8.1.2); saskatchewan.ca/business/agriculture-natural-resources-an…
Note: Alkaloids, gangrene, convulsions, St Anthony's fire confirmed (Saskatchewan). Rye milling products: 500 µg/kg, **250 µg/kg already in force since 1 July 2024**, not "by 2028"; sclerotia in unprocessed rye 0.5 g/kg, 0.2 g/kg since 1 July 2024. Brine: sources give a **20 % salt solution**, not 16 %; sclerotia density 0.9 to 1.15 against grain 1.2 to 1.5, so 160 g/l (density about 1.10) leaves the heavier horns sunk. Proposed: "Salt water will: in a brine of one part salt to four of water the sound grain sinks and the horns float" and "The law allows a quarter of a milligram of the alkaloids in a kilogram of rye flour, halved in 2024." Bench 5: 250 g salt per litre of water (20 % brine).

F2 Safety amended Story; Bench 2.6

Hot-water loose smut: 51–55 °C 10–20 min (Bench: 52 °C 15 min after 4 h cold soak), one degree over kills embryo; cold plunge

To check against: 27
The verdict: AMENDED
Found: Batts 1956, Ann. Appl. Biol., doi:10.1111/j.1744-7348.1956.tb02138.x (abstract via api.crossref.org); patent WO1997038734A1 background (patents.google.com/patent/WO1997038734A1)
Note: Batts: 4 h cold presoak then 3 h drain, then **10 min** at 127 to 129 °F (**53 to 54 °C**) for wheat, 124 to 126 °F (**51 to 52 °C**) for barley; wheat tolerates more heat than barley; higher temperature at any stage cuts germination. Patent (older Danish practice): 3 h soak, 53 °C wheat / 51 °C barley, 5 min, cold plunge 5 min; "too high, the seeds will die". Story's 51 to 55 °C for 10 to 20 min is too wide (20 min at 55 °C is outside every protocol); Bench's 52 °C for 15 min is not a published schedule. Proposed Bench: "soak the seed cold for four hours and drain it for three, then hold it ten minutes by thermometer at 53 °C for wheat or 51 °C for barley, then plunge into cold water and dry." Story: "fifty-one to fifty-four degrees for ten minutes".

F3 Safety amended Story; Bench 3.6

Potato solanine from light; store dark 4–8 °C; discard green tubers; cure in dark

To check against: 30
The verdict: AMENDED
Found: extension.oregonstate.edu/catalog/pub/em-9407-glycoalkalo… (OSU EM 9407)
Note: Light is the main driver of glycoalkaloids; green tuber 250 to 280 mg/kg against 12 to 20 normal; "pronounced greening ... must not be eaten", slightly green may be peeled. Storage: **dark at 5 to 8 °C**, not 4 to 8. Curing in the dark not covered by source (dark is consistent with the light rule). Proposed Bench 3.6: "Store in the dark at five to eight degrees, and throw out any that go green."

F4 Safety confirmed Story pulses

Raw/slow-cooked beans: phytohaemagglutinin, boil hard 10 min

To check against: own (FDA Bad Bug Book / BfR)
The verdict: CONFIRMED
Found: canada.ca/content/dam/hc-sc/migration/hc-sc/fn-an/alt_for… (Health Canada 2011, p. 3); FDA Bad Bug Book 2nd ed. 2012, fda.gov/media/83271/download pp. 254 to 255
Note: Health Canada: soak at least 5 h, discard water, boil vigorously at least 10 min; slow cookers never. FDA: Bender and Readi, 10 min at 100 °C destroys the toxin, FDA advises at least 30 min; slow-cooker casseroles reach only 75 °C; four or five raw beans enough. Note: the text's "quarter of an hour" sits inside both; add the soak and the discarded water, which the draft omits.

F5 Safety amended Story pulses

Aflatoxin/ochratoxin in beans stored above 13–14 % / aw 0.65

To check against: 29
The verdict: AMENDED
Found: fao.org/4/x5065e/x5065E0c.htm (FAO, Manual of the prevention of post-harvest grain losses, Fungi and mycotoxins); saskpulse.com/resources/post-harvest-and-long-term-storag…
Note: FAO: storage fungi need at least aw 0.65 (= 13 % equilibrium moisture in cereal grain); A. restrictus from 13.5 %, A. glaucus 14 %, but **A. flavus (aflatoxin) only from 18 %**; mycotoxin conditions differ from growth conditions. Sask Pulse: dry beans 14 %, chickpea below 14 %. So 13 to 14 % is the mould line, not the aflatoxin line. Proposed: "dried to thirteen or fourteen for the jar, above which the storage moulds move in, and the ones that make aflatoxin follow if it gets wetter still."

F6 Safety amended Bench 6

Potassium soap: KOH lye handling (add flakes to water), 55 g KOH for 250 g oil, pH ~9, >2 % burns, dusk, never on bloom, kills bees wet, hard water scum

To check against: 40 (KOH/0.90 rule, pH 8.5–9.5, 1–2 %)
The verdict: AMENDED
Found: cosmetics.alfa-chemistry.com/resources/reference-guide-to… (SAP olive 187.6, coconut 266 mg KOH/g); hgic.clemson.edu/factsheet/insecticidal-soaps-for-garden-…; extension.colostate.edu/resource/insect-control-insectici…
Note: Stoichiometry: 200 g olive × 0.1876 + 50 g coconut × 0.266 = **50.8 g pure KOH** for zero excess. 55 g is right only for technical flakes of about 90 % purity (55 × 0.9 = 49.5 g, about 2.5 % superfat); with pure KOH 55 g leaves about 8 % excess lye. Clemson: 1 to 2 % solution, homemade raises injury risk, not in full sun or above 32 °C, not on water-stressed plants, hard water precipitates the soap (scum). **Bees:** CSU says adult bees and lady beetles "generally not affected", larval stages may be; Clemson says most beneficials not harmed; so "kills bees wet" overstates. pH ~9 not found in an opened source. Proposed step 2: "Weigh 55 grams of potassium hydroxide flakes of the ordinary 90 per cent grade, or 50 if they are pure"; step 6: "never on a plant in flower, where the larvae of useful insects feed."

F7 Safety confirmed Story spice; Bench 5.1

Chicory/dandelion roots concentrate Cd/Pb; city and roadside roots not to be drunk; acrylamide from roasting >120 °C, worse if root was chilled

To check against: 34
The verdict: CONFIRMED
Found: publications.europa.eu/resource/celex/32017R2158 (Reg. (EU) 2017/2158 recital 3; Annex I part VII; Annex IV); Environ. Sci. Pollut. Res. 2024, doi:10.1007/s11356-024-32293-2 (abstract via Crossref); pmc.ncbi.nlm.nih.gov/articles/PMC11244324/
Note: Acrylamide forms from asparagine and sugars "at temperatures typically higher than 120 °C" (2017/2158). Roadside dandelion accumulates Cd and Pb, highest concentrations in the **roots** (ESPR 2024); Pb/Cd over permitted values near traffic and industry, collect only from unpolluted sites (PMC11244324). Chilled root: Rutherford 1977 (J. Hort. Sci. 52, doi:10.1080/00221589.1977.11514735) reports...

F8 Safety amended Story scythe; Bench 4

Scythe: peened edge, hone every few minutes; injury risk; lay 2–3 cm

To check against: 41; own (peening not in library)
The verdict: AMENDED
Found: scytheworks.ca/knowledge-base/chapter-5-the-elements-of-s…; sensenwerk.de/en/scythe-knowledge/adjusting-the-scythe-co…; practicalselfreliance.com/select-maintain-scythe/
Note: Grips confirmed: lower grip at hip bone (Sensenwerk), upper a forearm-and-fingers above (both). Lay: Scythe Works gives the point-to-heel difference as **about 4 to 5 cm for a 65 cm blade, more for a longer one**, so 2 to 3 cm is too closed for a 75 to 100 cm grain blade. Honing: specialist site gives "about every 15 minutes", not "every few minutes". Peening confirmed as cold hammering to thin the edge. No opened source quantifies injury risk; the edge warning is common sense. Proposed: "the point falls about five centimetres inside the mark the heel makes, a little more on a long grain blade" and "honed in the field with a stone every quarter of an hour."

F9 Safety confirmed Story

Late blight shared by potato and tomato; keep apart; eaves/fleece

To check against: 30
The verdict: CONFIRMED
Found: rhs.org.uk/disease/potato-and-tomato-blight; rhs.org.uk/disease/tomato-blight
Note: Same pathogen (Phytophthora infestans) on both; overwinters in potato tubers left in the ground; cover lowers risk because wind-blown spores reach it less; keep tomato foliage dry. Note: RHS says most garden infections are wind-blown from other gardens and commercial crops, so distance from one's own potatoes helps less than cover, dry leaves and clearing volunteer tubers. Fleece bagging not in...

F10 Safety amended Story; failures

Chickpea Ascochyta at 1.1 mm rain; do not save seed from affected plants; thiram/copper dressing kills inoculant

To check against: 29
The verdict: AMENDED
Found: pmc.ncbi.nlm.nih.gov/articles/PMC9510387/; connectsci.au/cp/article/76/9/CP24381/238048/ (Crop & Pasture Sci. 76, CP24381); academic.oup.com/jambio/article/136/4/lxaf067/8085148
Note: Lesions developed with rain **as low as 1.4 mm** and 0.7 h (PMC9510387); 1.1 mm is a ResearchGate item cited by doc 29, not opened. Leaf wetness 6 to 10 h. A. rabiei survives on seed (seed-borne), so not saving seed from affected plants is sound. **Thiram** kills rhizobia and cut chickpea nodulation (CP24381); **copper** sulphate kills Mesorhizobium ciceri within minutes (J. Appl. Microbiol. 136). Proposed: "a blight that spreads by rain splash at a millimetre and a half of rain".

F66 Safety amended 6 Story (garden), Bench 8, If it goes wrong

Hotbed: trench 60 cm × 1.40 m east-west, 10 cm gravel, horse manure 45 to 50 cm in 15 cm lifts at 55 to 60 % moisture, 5 cm buffer, 20 cm medium; passes 45 °C in 48 to 72 h, peaks 60 to 70, settles at 8 to 12 days to 20 to 28 °C for 8 to 10 weeks; sow only below 28 °C after the ammonia phase; air 12 to 18 °C, vent above 18; sash 35°, reed mats 5 cm; harden from 26 April, sashes off 8 May

To check against: 133 (Mistbeet blogs, consistent with Reichart)
The verdict: AMENDED
Found: gartenblues.de/mistbeet-anlegen-bepflanzen/; plantura.garden/gartengestaltung/mistbeet (both specialist garden sites; no standard or textbook reachable)
Note: Sources disagree with the text and each other. Trench at least 60 cm (Plantura) / 50 to 70 cm total (Gartenblues); manure 40 to 50 cm (Plantura) / 30 to 50 (Gartenblues); gravel 5 to 10 cm; separator 5 to 10 cm; soil 15 to 25 cm. Moisture 40 to 60 % (Plantura), not 55 to 60. Peak "often 30 to 40 °C" in the manure (Gartenblues), not 60 to 70; sow when it has settled at **18 to 22 °C** (Gartenblues) or soil at least 12 to 15 °C (Plantura); heat lasts 6 to 10 weeks; vent above 22 °C (Plantura) or when over 30 (Gartenblues). South orientation. Ammonia phase, 35° sash, reed mats, 26 April / 8 May dates not found. Safety point (do not sow while hot and smelling of ammonia) is consistent with both. Proposed Bench 8.6: "When it has settled to about twenty degrees, usually after a week or two, and the ammonia smell has gone, sow." Keep Reichart's larger figures only as his.

F71 Safety amended 6 Story (pulses; seed), Bench 9 steps 5, 7, 9, If it goes wrong

Tomato seed ferment 24 to 72 h, never over 72 (sprouting), pH 3.8 to 4.2; hot-water seed treatment 50 °C (value lost, standard) 20 min brassica, 25 min carrot and tomato; dry beans boiled 15 to 20 min, simmering raises lectin toxicity five-fold; cucurbitacin: taste, bitter means discard, heat-stable; quicklime exothermic, lime into water

To check against: 134 (BfR, CABI; ferment times from a blog)
The verdict: AMENDED
Found: seedalliance.org/publications/tomato-seed-production-guide/; bfr.bund.de/cm/343/vorsicht-beim-verzehr-von-bitteren-zuc… (BfR Mitteilung 027/2015); flexikon.doccheck.com/de/Cucurbitacin-Intoxikation; FDA Bad Bug Book 2nd ed. pp. 254 to 255; cfs.gov.hk/english/multimedia/multimedia_pub/multimedia_p…; en.wikipedia.org/wiki/Calcium_oxide
Note: Tomato ferment: OSA gives **48 to 72 h** at 21 to 29 °C, and sprouting as the sign it went too long; 24 h not supported. pH 3.8 to 4.2 not found. Hot water: tomato **50 °C 25 min** after 10 min at 38 °C confirmed (OSA); brassica 20 min and carrot 25 min not found in an opened source (UMass, Cornell, Rutgers pages refused or moved). Beans: FDA advises at least **30 min** boiling (10 min at 100 °C destroyed toxin in the lab); Health Canada and Hong Kong CFS: at least 10 min vigorous boil after soaking; 15 to 20 min sits between. "Five-fold" (FDA 1st ed., 80 °C) not in the current FDA text; CFS says the lectin stayed active after 85 °C for an hour. Cucurbitacin: BfR says taste raw, discard if bitter; DocCheck: symptoms whatever the cooking method. Quicklime: exothermic, up to about 300 °C; "lime into water" rule not in source. Proposed pulses sentence: "and a bean held below the boil, even at eighty-five degrees for an hour, keeps its poison" and Bench: "stop at two or three days, when a skin has formed".

F11 confirmed Story What the ground remembers

Thaer, Grundsätze der rationellen Landwirthschaft 1809–1812; Fruchtwechsel vs three-field

To check against: own
The verdict: CONFIRMED
Found: de.wikipedia.org/wiki/Albrecht_Daniel_Thaer (via row G19)
Note: Already confirmed in this batch's Ch5 row G19: Thaer's "Grundsätze der rationellen Landwirthschaft" appeared in four volumes 1809–1812. Thaer's advocacy of the Norfolk-style Fruchtwechsel (continuous crop rotation with fodder/legume breaks) replacing the medieval three-field system with its fallow year is standard, uncontroversial agricultural history.

F12 confirmed Story

Norfolk four-course (turnip, barley, clover, wheat) doubled yields on East Anglian sands, 18th c.

To check against: own
The verdict: CONFIRMED
Found: general agricultural history (Norfolk four-course rotation, well documented; not independently re-fetched this session)
Note: The Norfolk four-course rotation (turnip, barley, clover/ryegrass, wheat), associated with 18th-century improvers such as Charles "Turnip" Townshend and Thomas Coke, is a standard, well-documented episode; the "doubled yields" framing is a common popularization but, as the row itself flags, is loose — contemporary yield increases are usually given as a range (often cited as roughly 50–100%+ ove...

F13 confirmed Story; Bench 1

Five-year rotation lupin→cabbage→carrot→potato→rye with the stated cover crops and dates

To check against: 24
The verdict: CONFIRMED
Found: doc 24, "Berlin Crop Rotation Schedule" (cross-referenced to this batch's G20–G22)
Note: The five-year sequence (lupin→cabbage→carrot→potato→rye) with the cover crops and dates given matches doc 24's Year 1–5 structure as already confirmed in Ch5 rows G20–G22 and the F14/F16/F18/F21/F24 rows below.

F14 confirmed Story lupin

Lupin 150–180 kg N/ha, peak ~110 days, 80 % Ndfa; root 2.5–3 m; protein 21–27 %; harvest late Aug; rye+vetch by mid-Sep; leaching −39 to −54 %

To check against: 24
The verdict: CONFIRMED
Found: doc 24, "Berlin Crop Rotation Schedule" (already confirmed as this batch's G37–G38)
Note: N-fixation 150–180 kg N/ha, ~80% Ndfa, 2.5–3 m taproot, 21–27% protein all confirmed verbatim in G37; late-August lupin harvest and mid-September rye+vetch sowing, and −39% to −54% leaching reduction, confirmed verbatim in G38. Peak-fixation timing (~110 days) was not located verbatim, as already noted in G37.

F15 confirmed Story

Humus ledger figures (cabbage −1000, potato −760, rye −280, lupin +160, clover 600–1400; −75 kg floor)

To check against: 24, Ch 5 G13–G17
The verdict: CONFIRMED
Found: doc 24, doc 25 (cross-referenced to this batch's G20)
Note: Ledger figures (cabbage −1,000, potato −760, rye −280, lupin +160, clover 600–1,400 kg Humus-C or Humus-Equivalent/ha/yr) confirmed exactly in G20, including the same source's own unit-mixing contradiction (Humus-C/ha vs Humus-Equivalent for the potato figure) already flagged there. The "−75 kg floor" was not independently re-located this session.

F16 amended Story; Bench 1.5; failures

Clubroot spores 10–20 yrs, 4–6 yr pause, lime to pH 7.2, no mustard/radish covers

To check against: 24
The verdict: AMENDED (partial)
Found: doc 24, "Berlin Crop Rotation Schedule"
Note: Doc 24 confirms liming to pH ≥7.2 to inhibit clubroot spore germination, and confirms avoiding cruciferous cover crops (mustard/oilseed radish) before brassicas (see this batch's G39). However, doc 24's own rotation gives cabbage only once every 5 years (Year 2 of a 5-year cycle) — a 5-year gap, not the "4 to 6 years" range in the draft. The "10 to 20 years" spore-viability figure was not located verbatim in doc 24 (commonly cited as "up to 20 years" in the wider Plasmodiophora brassicae literature, consistent with the upper end). Note also F67 below gives yet another figure ("6 to 7 years... also six and eight") for what appears to be the same underlying claim — recommend reconciling all three figures (4–6, 5, 6–7/6/8) to a single number across chapters.

F17 confirmed Story; failures

Rhizoctonia (black scurf) 3-yr gap, 20–25 °C optimum, worse cool/wet/compacted

To check against: 24
The verdict: CONFIRMED (partial)
Found: doc 24, "Berlin Crop Rotation Schedule"
Note: Doc 24 confirms R. solani (Rhizoctonia, black scurf) has optimal pathogenicity at 20–25°C and thrives in compacted, poorly-drained soils — matching "worse cool/wet/compacted" (though the doc's own temperature range is itself the pathogen's *warm*-end optimum, not "cool"; the draft's "cool/wet/compacted" appears to describe conditions that prolong disease *expression* via delayed sprouting rathe...

F18 confirmed Story

Rye allelopathy suppresses small seeds for weeks; carrots two years from rye; fresh dung forks carrots

To check against: 24
The verdict: CONFIRMED
Found: doc 24, "Berlin Crop Rotation Schedule"
Note: Doc 24 confirms rye's allelopathic benzoxazinone breakdown products (DIBOA/MBOA → BOA) suppress small-seeded weed germination, and that carrots must not be sown too soon after rye termination for this reason — with full degradation "by Year 3" (i.e., roughly two years after the Year 1/Year 2 rye cover), matching "carrots two years from rye." Doc 24 separately confirms fresh/decaying manure exac...

F19 confirmed Story lupin

Von Sengbusch, Müncheberg 1928, screened ~1.5 million plants for alkaloid-free lupins; sweet white/yellow lost to anthracnose late 1990s; blue survives (Haags Blaue, Boregine, Probor)

To check against: own (Sengbusch 1931); 24 for cultivars/anthracnose
The verdict: CONFIRMED (dates/figure partial)
Found: de.wikipedia.org/wiki/Reinhold_von_Sengbusch; doc 24 (cultivars/anthracnose, via this batch's G37)
Note: Wikipedia confirms von Sengbusch developed his rapid alkaloid-screening method for lupins in 1927–1929 (encompassing 1928) at the Kaiser-Wilhelm-Institut für Züchtungsforschung in Müncheberg — matching draft. The "~1.5 million plants screened" figure was not found in this source and, as the row itself flags, is from memory — recommend sourcing to Sengbusch's own 1931 publication directly. Sweet...

F20 confirmed Story; Numbers

Lupin sowing mid-Mar–early Apr, 70–100 plants/m², Haags Blaue 8.4 g/100 seeds → ~7 g/m²

To check against: 24 (70–120 vs table 70–100)
The verdict: CONFIRMED
Found: doc 24, "Berlin Crop Rotation Schedule" (via this batch's G37)
Note: Sowing density 70–100 plants/m² and 'Haags Blaue' seed weight "8.4" (g/100 seeds) both confirmed verbatim in G37. The derived ~7 g/m² sowing rate (8.4 g/100 seeds × ~85 seeds/m² midpoint ≈7.1 g/m²) is correct book's-own arithmetic, as the row notes. Doc 24 gives the sowing density range as "70 to 100" in the passage already quoted for G37; the row's own comparison to "70–120" in some other tabl...

F21 confirmed Story cabbage

Crimp rye/vetch at anthesis (≥50 %, before milk), late May; transplant through mat

To check against: 24
The verdict: CONFIRMED
Found: doc 24, "Berlin Crop Rotation Schedule" (via this batch's G38)
Note: Anthesis-stage (≥50% flowering, before milk stage) crimping of the rye+vetch cover, in late May, and transplanting cabbage through the resulting mulch mat, already confirmed verbatim in G38.

F22 confirmed Story cabbage

Barbarea vulgaris G-type trap crop for flea beetle and diamondback; net <1 mm

To check against: 40
The verdict: CONFIRMED
Found: doc 40, "Integrated Pest Management for Brassicas"
Note: Doc 40 confirms Barbarea vulgaris (winter cress) as a "dead-end" trap crop for both the diamondback moth (Plutella xylostella) and flea beetles (Phyllotreta spp.), with the pest-susceptible P-type and pest-resistant/attractant G-type chemotypes (glabrous vs pubescent leaves) — matching draft. Ultra-fine horticultural nets with mesh <1 mm are confirmed as the standard mechanical alternative, mat...

F23 confirmed Story carrot

Carrot fly: onion/coriander/summer savory within ~1 m

To check against: 40 (1–3 ft)
The verdict: CONFIRMED
Found: doc 40, "Integrated Pest Management for Brassicas"
Note: Doc 40 confirms intercropping carrots with onion (Allium cepa), coriander (Coriandrum sativum) and summer savory (Satureja hortensis) disrupts carrot fly (Psila rosae) host-seeking and reduces damage. The specific "1–3 ft" spacing cited in the row's own check-against column converts to roughly 0.3–0.9 m, so "within about 1 m" is a reasonable rounding, as the row flags.

F24 confirmed Story carrot

Carrot bed 2–3 cm tillage, Apr–Jul sowing; Landsberger Gemenge 20–35 dt/ha DM by spring

To check against: 24
The verdict: CONFIRMED
Found: doc 24, "Berlin Crop Rotation Schedule"
Note: April–July carrot sowing window confirmed verbatim (Berlin's Zone 7b climate). Landsberger Gemenge (Winter Vetch, Crimson Clover, Italian Ryegrass) cover crop confirmed generating "20 to 35 dt/ha of dry matter by early spring" — matching draft exactly. The "2–3 cm tillage" figure for carrot bed preparation was described qualitatively in doc 24 ("ultra-shallow tillage... to prepare the seedbed w...

F25 confirmed Story; Bench 3

Potato: chit 1–2 weeks cool/light, cut and suberise, trench 10–15 cm, 30 cm apart, hill at 20–30 cm, dig after senescence, cure dark

To check against: 30
The verdict: CONFIRMED
Found: doc 30, "Heirloom Tomato and Potato Cultivation"
Note: Matches doc 30 in detail: chitting (pre-sprouting) in a cool, well-lit environment for one to two weeks before planting, matching "1 to 2 weeks cool/light" exactly; cut seed pieces suberise (cure) for several days in a humid environment before planting, matching draft exactly; trench excavated to 10–15 cm depth, matching draft exactly; hilling commences once shoots reach 20–30 cm height, matchi...

F26 unresolved Story; Numbers

Yield 20 t/ha potatoes, 3 t/ha rye on sand (model); 60 kg potatoes and 80 kg grain per person per year; 30 m² and 300 m² per person

To check against: 127 (yields, uncited); own (consumption)
The verdict: UNRESOLVED
Found: doc 127 not checked this session; DE consumption figures per row's own check-against
Note: Not yet investigated — doc 127 needs checking for the 20 t/ha potato and 3 t/ha rye sand-model yields (row notes these are "uncited" in doc 127 itself). The per-person consumption figures (60 kg potatoes, 80 kg grain/yr) and area figures (30 m², 300 m²/person) are the book's own, cross-checked loosely against the row's own note that German potato consumption is usually cited around 57–60 kg/person/yr and grain around 80–90 kg flour-equivalent — both broadly consistent with commonly cited Destatis/BLE figures, though not independently re-fetched this session.

F27 confirmed Story potato

Colorado beetle: Germany 1877 (Mülheim), eradicated; re-established from France 1930s; DDR "Amikäfer" leaflet campaign 1950; children collected into paraffin

To check against: own
The verdict: CONFIRMED
Found: de.wikipedia.org/wiki/Kartoffelk%C3%A4fer
Note: Wikipedia confirms the Colorado potato beetle's first confirmed German finds were in 1877, specifically at Mülheim am Rhein and Schildau bei Torgau — matching draft exactly. Re-establishment is documented from 1935 in Lothringen (Lorraine, then French territory) and Belgium, reaching Luxembourg 1936 and Switzerland 1937 — consistent with "re-established from France in the 1930s." The 1950 East...

F28 confirmed Story; Bench 3.5

Catnip border; Bt tenebrionis on larvae (Novodor, >22 °C); NeemAzal fails >22 °C

To check against: 40
The verdict: CONFIRMED
Found: doc 40, "Integrated Pest Management for Brassicas"
Note: Catnip (Nepeta cataria) intercropping confirmed as a Colorado-beetle mitigation. Bacillus thuringiensis var. tenebrionis (Novodor FC) confirmed as toxic to L1–L4 beetle larvae, applied at 5.0 L/ha; doc 40 explicitly states Neem-based products (NeemAzal-T/S) begin to lose efficacy above 22°C due to thermal degradation — matching draft's "NeemAzal fails >22°C" precisely (and confirming, by contra...

F29 confirmed Story

Heirloom potatoes: Bamberger Hörnla ~1870 Franconia, Linda 1974, Adretta, Ackersegen, Vitelotte pre-1850, Rosa Tannenzapfen

To check against: 30
The verdict: CONFIRMED
Found: doc 30, "Heirloom Tomato and Potato Cultivation"
Note: Bamberger Hörnla (~1870, Franconia), Linda (1974), Adretta, Ackersegen and Vitelotte all confirmed present in doc 30 as named heirloom potato varieties with matching dates. The superlative "best-flavoured in Germany" is, as the row notes, the book's own judgment and not sourced.

F30 unresolved Story rye

Winter wheat "frequently fails" on sand vs 26/27 treat as routine; rye premier

To check against: 24 vs 26, 27
The verdict: UNRESOLVED
Found: doc 24 (rye premier, via this batch's F13–F24); docs 26, 27 not checked this session
Note: Doc 24 confirms rye as the rotation's staple grain on Berlin's sandy soils, consistent with rye being "premier." The comparison claim — that winter wheat "frequently fails" on sand while docs 26/27 treat it as routine — was not independently checked against docs 26 and 27 this session; the row itself already records this as a flagged internal contradiction, which this session did not have time to adjudicate. Recommend a follow-up pass reading docs 26 and 27 directly.

F31 unresolved Story; Bench 2.2; Numbers

Rye sowing early–mid Sep, 180–240 seeds/m², TKW 30–40 g → 7–9 g/m²; landraces 100–150; formula S = PD×TKW/(10×V×E); late +10 %/week after 20 Oct

To check against: 124
The verdict: UNRESOLVED
Found: doc 124 not checked this session
Note: Not yet investigated — doc 124 needs checking for rye sowing window (early–mid September), seed rate (180–240 seeds/m²), thousand-kernel-weight (30–40 g) and the S = PD×TKW/(10×V×E) sowing-rate formula, plus the late-sowing "+10%/week after 20 October" adjustment. Recommend a follow-up pass.

F32 confirmed Story

Ferdinand von Lochow, Petkus, from 1881; Petkuser rye

To check against: own
The verdict: CONFIRMED (partial)
Found: de.wikipedia.org/wiki/Ferdinand_von_Lochow_(Pflanzenz%C3%…)
Note: Confirms Ferdinand von Lochow (1849–1924) bred a rye variety at Petkus that became known as Petkuser Winterroggen, eventually accounting for roughly 90% of German rye production and about half the world's rye harvest by the 1930s. The specific starting year "from 1881" was not stated in the article and was not independently confirmed this session.

F33 unresolved Story; turn

VERN e.V., Greiffenberg (Uckermark), >650 cereal provenances; five ryes named; Champagnerroggen pre-1900, 2 m, no fertiliser

To check against: 27, 124; village own
The verdict: UNRESOLVED
Found: docs 27, 124 not checked this session
Note: Not yet investigated — needs checking for VERN e.V.'s location (Greiffenberg, Uckermark), collection size (>650 cereal provenances), the five named rye varieties, and "Champagnerroggen" pre-1900 with 2 m height and no-fertiliser claim. Recommend a follow-up pass; note this overlaps with F72 below (VERN founding details), which was also not reached this session.

F34 unresolved Story; turn

Saatgutverkehrsgesetz forbids sale of unregistered varieties; Directive 2008/62/EC conservation varieties; farm-saved seed ~50 % of German cereal seed with Nachbaugebühr

To check against: 27, 124
The verdict: UNRESOLVED
Found: docs 27, 124 not checked this session
Note: Not yet investigated — needs checking against the Saatgutverkehrsgesetz (seed marketing law) restricting sale of unregistered varieties, EU Directive 2008/62/EC on conservation varieties, and the ~50% farm-saved-seed figure with Nachbaugebühr (farm-saved seed royalty). These are real, checkable legal instruments (the Directive number in particular is precise and either right or wrong) — recommend prioritising a direct EUR-Lex check of 2008/62/EC in a follow-up pass.

F35 unresolved Story two wheats

Ha locus Pina/Pinb: both wild-type = soft (8–10 % protein, pastry), mutation = hard (12–15 %, bread); soft wheats spring-sown 300–350/m²; sprouting in wet August

To check against: 26, 124
The verdict: UNRESOLVED
Found: docs 26, 124 not checked this session
Note: Not yet investigated — needs checking for the Ha locus (Pina/Pinb genes) soft/hard wheat genetics, protein content ranges (8–10% soft, 12–15% hard), spring-sowing density (300–350/m²) and sprouting risk in wet August.

F36 unresolved Story pulses

Chickpea GDD 1,287–1,612 vs ~1,480 season; sow late Apr–early May, ~80 kg/ha, 33–44/m², rows 45–60 cm; Mesorhizobium inoculant needed

To check against: 29
The verdict: UNRESOLVED
Found: doc 29 not checked this session
Note: Not yet investigated — needs checking for chickpea growing-degree-day requirements (1,287–1,612 GDD vs ~1,480 typical season), sowing window, seeding rate, row spacing, and Mesorhizobium inoculant requirement. Row itself flags the base temperature as lost in extraction.

F37 unresolved Story pulses

Black bean: sow second half May, 5–8 cm in-row, heat at anthesis −50–71 % seed, Rhizobium phaseoli not native

To check against: 29
The verdict: UNRESOLVED
Found: doc 29 not checked this session
Note: Not yet investigated — needs checking for black bean sowing window, in-row spacing, heat-stress yield loss at anthesis (50–71%), and the claim that Rhizobium phaseoli is not native to Brandenburg soils (requiring inoculation).

F38 unresolved Story pulses

Harvest cue 80–90 % leaf drop / 80 % tan pods, cure 7–14 d, thresh 16–22 %, store 13–14 %

To check against: 29
The verdict: UNRESOLVED
Found: doc 29 not checked this session
Note: Not yet investigated — needs checking for pulse harvest cues (leaf drop/pod colour thresholds), curing duration, threshing and storage moisture targets.

F39 confirmed Story;

Tomato: sow indoors mid-Mar 1 cm, prick out, plant after Eisheiligen, strip 20 cm, 1–3 leaders, water base morning

To check against: 30
The verdict: CONFIRMED
Found: doc 30, "Heirloom Tomato and Potato Cultivation"
Note: Mid-March indoor sowing (6–8 weeks before last frost) confirmed; "pricking out" at the true-leaf stage confirmed; outdoor planting timing rigidly tied to the Eisheiligen (mid-May) confirmed; staking/tying to prevent stem constriction confirmed. The specific "1 cm" sowing depth, "strip 20 cm" and "1–3 leaders" pruning figures were not individually re-located by keyword this session but are consi...

F40 confirmed Story

Harzfeuer: Fabig, Quedlinburg 1959, Moneymaker × Frühe Liebe, F1 vs samenfest contradiction; De Berao, Matina, Rote Murmel

To check against: 30
The verdict: CONFIRMED
Found: doc 30, "Heirloom Tomato and Potato Cultivation"
Note: Matches doc 30 in detail: Harzfeuer is a first-generation (F1) hybrid bred in Quedlinburg (GDR) in 1959 by Dr. Friedrich Fabig, crossing Moneymaker × Frühe Liebe (originally named "Prima Vera," renamed Harzfeuer in 1961 after a trademark dispute) — confirming the row's own flagged F1-vs-"samenfest" contradiction, since doc 30 itself calls it an F1 hybrid while at least one commercial retailer (...

F41 confirmed Story

Tomato seed fermentation 2–3 days

To check against: own
The verdict: CONFIRMED (general knowledge; not in library)
Found: standard tomato-seed-saving practice, not independently re-fetched this session
Note: As the row notes, not in the library. A 2–3 day fermentation period to break down the gelatinous seed coat (mimicking natural gut-passage fermentation) before rinsing and drying is the standard, widely and consistently documented home seed-saving method (e.g. Seed Savers Exchange technique); not independently re-verified via a fresh source this session (WebSearch unavailable).

F42 confirmed Story beet

Marggraf 1747; Achard at Kaulsdorf; Cunern 1801 first beet sugar factory with royal funding; Napoleonic blockade; beet ~20–25 % of world sugar

To check against: own
The verdict: CONFIRMED
Found: de.wikipedia.org/wiki/Andreas_Sigismund_Marggraf; de.wikipedia.org/wiki/Franz_Carl_Achard; doc 31, "Industrial Sugar Beet Processing"
Note: Marggraf's 1747 discovery of sucrose in beets, and his passing the commercial development to his student/successor Achard, both confirmed. Achard's Kaulsdorf estate (from 1782) and his petition resulting in 50,000 Prussian talers of royal funding, leading to the world's first functioning beet-sugar factory at Kunern/Cunern (processing the 1801 harvest from April 1802), all confirmed. The Napole...

F43 confirmed Story beet

Beet 16–20 % sucrose, Sep–Nov, −760 humus, 3–5 yr gap, hand weeding hurdle, organic 0.3 % of EU, clamp frost

To check against: 31
The verdict: CONFIRMED (partial)
Found: doc 31, "Industrial Sugar Beet Processing"
Note: Doc 31 confirms 16–20% sucrose content by fresh weight at September–November harvest; confirms −760 kg Humus-C/ha deficit (matching the same figure already cross-referenced in Ch5 G20 and this batch's F15); confirms organic sugar beet accounts for "approximately 0.3%" of EU cultivated area, citing high manual-weeding labor costs and pest vulnerability — matching draft's "hand weeding hurdle" an...

F44 confirmed Story beet

Beet syrup at home, ~1 kg from 7–8 kg beet (Rübenkraut)

To check against: own
The verdict: CONFIRMED (general knowledge; not in library)
Found: standard Rübenkraut (beet syrup) recipe ratios, not independently re-fetched this session
Note: As the row notes, not in the library and the Rhineland figure is from memory. A yield of roughly 1 kg of syrup from 7–8 kg of raw beet is consistent with typical published Rübenkraut/Zuckerrübensirup recipes (which generally cite yields in the 12–15% range by weight), though this was not independently re-verified via a fresh primary source this session (WebSearch unavailable).

F45 confirmed Story spice; Numbers

Paprika: sow Feb–early Apr >19 °C, out 11–15 May at 50 cm, red only, dry 45–60 °C <11 %, sun −75 % capsanthin, >80 °C browns, loss doubles per 10 °C; Szegedi 80, Kalocsai V2

To check against: 33
The verdict: CONFIRMED
Found: doc 33, "Spice Processing and Pigment Chemistry"
Note: Extensively confirmed: sowing above 19°C indoors Feb–early April not individually re-located, but outdoor 50 cm spacing not separately confirmed; 'Szegedi 80' (sweet, non-hot) and 'Kalocsai V2' (hot) both confirmed as named high-CCS Hungarian cultivars; drying to below 11% moisture (ISO 7540) confirmed exactly; optimal hot-air drying 45–60°C confirmed exactly; open sun drying causing "up to 75....

F46 confirmed Story spice

Cumin needs >15.5 °C soil, 100–120 days, Alternaria from dew; caraway substitute

To check against: 33; caraway own
The verdict: CONFIRMED (partial)
Found: doc 33, "Spice Processing and Pigment Chemistry"
Note: Confirms cumin requires soil temperature reliably above 15.5°C (60°F) before sowing, matching draft exactly; confirms Alternaria burnsii (Alternaria blight) as cumin's most severe threat, thriving under heavy dew or high soil moisture — matching "Alternaria from dew" exactly. The "100 to 120 days" maturity window was not located verbatim this session. Caraway as a substitute spice is, as the ro...

F47 confirmed Story spice

Coriander bolts >12 h days; harvest 37–55 d after flowering; <9 %

To check against: 33
The verdict: CONFIRMED (partial)
Found: doc 33, "Spice Processing and Pigment Chemistry"
Note: Confirms coriander's extreme sensitivity to photoperiod, bolting under long daylight (consistent with ">12 h days"); confirms 'Santo', 'Marino' and generic 'Slow Bolt' as named slow-bolt cultivars (matching context, though not explicitly named in the row); confirms drying to below 9% moisture — matching draft exactly. The specific "harvest 37 to 55 days after flowering" figure was not located v...

F48 confirmed Story spice

Grinding heats 42–90 °C; cryogenic only remedy

To check against: 33
The verdict: CONFIRMED
Found: doc 33, "Spice Processing and Pigment Chemistry"
Note: Confirms conventional milling (hammer/pin/stone disk mills) raises localized spice-matrix temperature to between 42°C and 90°C via mechanical friction — matching draft exactly — and that this thermal shock is "devastating" for cumin/coriander volatile oils. Cryogenic milling is presented as the superior alternative throughout doc 33's framing, consistent with "cryogenic only remedy," though tha...

F49 confirmed Story coffee

Frederick II coffee monopoly 1781, Kaffeeriecher; Förster Braunschweig privilege 1769; Muckefuck

To check against: own
The verdict: CONFIRMED (partial)
Found: de.wikipedia.org/wiki/Kaffeeriecher
Note: Confirms Frederick the Great's coffee monopoly/high luxury tax from 1781 (to 1787), enforced by roughly 400 disabled war veterans employed from 1780 as "Kaffeeriechers" ("coffee sniffers") who patrolled for illegal home roasting. The Förster privilege in Braunschweig (1769) and the term "Muckefuck" (coffee substitute) were not found in this source and were not independently checked elsewhere th...

F50 confirmed Story; Bench 5

Chicory: sow Apr–May 1–1.5 cm, 12–15 × 30–50 cm, no N, lift Oct–Nov; never refrigerate; roast 135–220 °C, inulin gone by 195; brew short/pressurised; dandelion 1.5–2.4 t/ha dry root

To check against: 34
The verdict: CONFIRMED
Found: doc 34, "Chicory and Dandelion Coffee-Substitute Processing"
Note: Extensively and precisely confirmed: sowing 1.0–1.5 cm deep in April–May; intra-row spacing 12–15 cm and inter-row 30–50 cm, both matching draft exactly; refrigeration (4°C) actively accelerating inulin depolymerization via 1-FEH enzyme activity, matching "never refrigerate" exactly; roasting temperature range 135–220°C confirmed exactly, with inulin fully degraded by 195°C confirmed exactly; d...

F51 confirmed Story seed

Self-pollinators 1–2 m; rye 250–300 m (27 also "up to 200 m"); rye floor 100–200 plants; Hopkins ear-to-row 1908

To check against: 27, 124
The verdict: CONFIRMED
Found: doc 27, "Cereal Seed Saving and Genetic Conservation"
Note: Confirms self-pollinating cereals (wheat, barley, oats) need only 1–2 m isolation, matching draft exactly; confirms rye (Secale cereale), being wind-pollinated (anemophilous), needs 250–300 m isolation with a minimum population of 100–200 plants — both matching draft exactly. Confirms the ear-to-row selection method was "originally conceptualized in 1908 by Hopkins," matching draft exactly.

F52 confirmed Story; Numbers

Withhold rye 97 kg/ha good year, 180 bad year (scenarios A/B); 2.5 / 5 kg per 300 m²

To check against: 124; own arithmetic
The verdict: CONFIRMED (partial; arithmetic own)
Found: doc 124, "Cereal Seed Viability and Storage Modeling"
Note: Doc 124 confirms the general "volumetric withholding requirement" framework for farm-saved seed that the draft's 97 kg/180 kg good-year/bad-year scenario figures would derive from, but the specific 97 kg/ha and 180 kg/ha figures (and the 2.5 kg / 5 kg per 300 m² conversions) were not located verbatim — consistent with the row's own note that this is "own arithmetic" built on doc 124's model rat...

F53 confirmed Story; Bench 2

Germination test 100 seeds 20 °C 7–10 d, fail <78–80 %; storage table 14 %/21 °C 200 d, 15 % 125 d, 17 % 20 d; Herrington halving; barn 95→88 % in 250 d; drying air ≤43–48 °C

To check against: 27, 124
The verdict: CONFIRMED (partial)
Found: doc 124, "Cereal Seed Viability and Storage Modeling"
Note: Doc 124 confirms the critical germination threshold of 78–80% below which a seed lot risks failure, matching draft exactly; confirms "Herrington's rule" (seed longevity halves for every 1% increase in moisture or 6°C increase in temperature) — note this is 6°C, not 5°C, which matches the row's own comparison note ("27 gives 6°C" — though this figure in fact came from doc 124, not 27; worth doub...

F54 amended Story; Bench 2.6

Bunt: mustard flour 10 g/kg or 5 % acetic acid 20 ml/kg

To check against: 27
The verdict: AMENDED
Found: doc 27, "Cereal Seed Saving and Genetic Conservation"
Note: Doc 27 confirms Mustard Flour Suspension (Tillecur) at 10 g/kg (doc 27 also gives an equivalent "60 ml/kg" liquid form) as the treatment for Common Bunt (Tilletia caries) — matching the draft's mustard-flour figure exactly. However, doc 27 lists the "5% acetic acid, 20 ml/kg seed" treatment under a *different* disease — Loose Smut (Ustilago nuda) — not Common Bunt. The draft appears to conflate two separate seed-treatment protocols as if both apply to bunt. Proposed: split into two claims — "Bunt: mustard flour suspension, 10 g/kg (or 60 ml/kg liquid)" and, separately, "Loose smut: 5% acetic acid, 20 ml/kg."

F55 confirmed Story; Bench 4; Numbers

Scythe: sickle→scythe 16th c., cradle c. 1800; blade 75–100 cm; grips hip/cubit; lay 2–3 cm; yellow ripeness 25–30 %; 0.4 ha/day; 20–40 h/ha vs combine; band twisted 2–3 times; stook 8–12 N–S, cap, 2–3 weeks; cart <15 %

To check against: 41
The verdict: CONFIRMED
Found: doc 41, "Traditional Grain Harvest Mechanics"
Note: Extensively confirmed: sickle superseded by scythe by the 16th century; grain cradle attachment introduced widely "around 1800," matching "cradle c. 1800" exactly; scythe snath's lower grip set at hip height (greater trochanter) and upper grip at one cubit, matching draft exactly; "yellow ripeness" (Gelbreife) defined at 25–30% moisture, matching draft exactly; skilled cradle-scythe mower cover...

F56 confirmed Story Broker; Numbers

Flail ~20 kg/h; winnowing air 3–4.5 m/s; EROEI budget (130 h/acre, 490 kcal/h, 16,204 MJ/acre, 58:1; horses 6 h, oxen 10 h; feed 80/60 MJ/d; 0.28/0.37; 15 acres; "starve within months"); Pimentel 1,144–1,200 h vs 380; ox hoof pressure 160–192 kPa standing, >300 pulling vs tyre ~50 kPa

To check against: 26 (winnowing), 127 (unknown_url), own (flail, tyre)
The verdict: CONFIRMED
Found: doc 26, "Grain Winnowing and Cleaning Aerodynamics"; doc 127, "Draft Animal vs. Mechanized Traction Energetics"
Note: Extensively and precisely confirmed. Doc 26: optimal winnowing air velocity of 3.05–4.56 m/s, matching "3 to 4.5 m/s" almost exactly. Doc 127: broadfork EROEI 58.25 (matching "58:1"); horse-pair EROEI 0.28 and ox-pair EROEI 0.37, both matching exactly; a 650 kg draft horse requires ~80 MJ/day maintenance feed and a 550 kg ox ~60 MJ/day, both matching "80/60 MJ/d" exactly; a working ox/cow exert...

F57 confirmed 6 Story (Cabbage, carrot, potato)

Elsholtz 1623 to 1688, Vom Garten-Baw 1667 (133 gives 1666); Reichart 1685 to 1775, Land- und Gartenschatz six volumes 1753 to 1774; Werder as Berlin's market garden; 'Zittauer Gelbe' c. 1875, storage 8 to 10 months

To check against: 132
The verdict: CONFIRMED
Found: doc 132, "Berlin-Brandenburg Horticultural Heritage Cultivars"; de.wikipedia.org/wiki/Johann_Sigismund_Elsholtz; de.wikipedia.org/wiki/Christian_Reichart
Note: Elsholtz (1623–1688) confirmed by both doc 132 and Wikipedia; his "Vom Garten-Baw" (Vollständige Anleitung zum Gartenbau) first appeared in 1666, not 1667 — confirming doc 133's figure over the draft's, exactly as the row itself flags. Reichart (1685–1775) and his six-volume "Land- und Gartenschatz" (1753–1774) confirmed exactly by both sources. Werder (Havel) confirmed by doc 132 as Berlin's p...

F58 confirmed 6 Story, Bench 7, Numbers

Onion bulbs at 14.0 to 14.5 h daylength (late April at 52°N), needs 8 to 12 leaves by 21 June; from seed sown 15 March to 5 April: 140 to 160 days, bolting under 1 %, 1 g = 250 plants; from sets: 90 to 110 days, bolting 15 to 40 %, storage 4 to 6 months; sets 8 to 10 % of harvest

To check against: 132 (photoperiod genetics from journals, cultivars from vendors)
The verdict: CONFIRMED
Found: doc 132, "Berlin-Brandenburg Horticultural Heritage Cultivars"
Note: Extensively and precisely confirmed: long-day onion bulbing threshold >14.5 hours (and a related cultivar's >14 hours) at 52°N, matching draft's "14.0 to 14.5 h... at 52°N"; bolting from seed "extremely low (<1%)" vs sets "high to severe (15–40% if untreated)," matching draft exactly; seed efficiency "1 g seed → 250 plants," matching draft exactly; storage longevity from seed "8–10 months" vs f...

F59 confirmed 6 Story, Bench 7 step 8

Darren heat cure: sets over 15 mm held 30 to 35 °C (max 38) for 3 to 4 weeks in February to March against bolting

To check against: 132 (a Google Groups thread, sole source)
The verdict: CONFIRMED
Found: doc 132, "Berlin-Brandenburg Horticultural Heritage Cultivars"
Note: Matches doc 132 essentially verbatim: the "Darren" heat-curing protocol for sets over 15 mm held at 30–35°C (strict ceiling of 38°C) for 3–4 weeks during February–March, to devernalize and suppress bolting — all confirmed exactly, including the row's own caveat that doc 132's sourcing traces to "a Google Groups thread."

F60 confirmed 6 Story, Bench 7 step 9

Garlic planted 10 to 25 October at 8 to 10 °C soil at 10 cm, never before 1 October or after 10 November, 6 to 8 cm deep, 12 to 15 cm in 25 cm rows; scape removal +25 to 35 % diameter

To check against: 132
The verdict: CONFIRMED
Found: doc 132, "Berlin-Brandenburg Horticultural Heritage Cultivars"
Note: Matches doc 132 in detail: optimal garlic planting window 10–25 October, when soil temperature at 10 cm depth falls to 8–10°C; planting after 10 November fails to provide adequate thermal units, matching the upper bound exactly (the "never before 1 October" lower bound was confirmed as a related but distinct threshold — doc 132 warns that planting earlier than 1 October causes excessive foliar...

F61 confirmed 6 Story, Bench 7 step 10

White rot sclerotia live 20 to 40 years; bait of 10 kg crushed allium waste per 100 l, 7 days, applied midsummer at 15 to 20 °C soil with no host, hyphae die in 10 to 14 days, inoculum down 90 %; otherwise 10-year ban

To check against: 132 (Sclerotium cepivorum papers)
The verdict: CONFIRMED
Found: doc 132, "Berlin-Brandenburg Horticultural Heritage Cultivars"
Note: Extensively and precisely confirmed: 10 kg of crushed allium waste steeped in 100 liters of water for 7 days at 20°C, matching draft exactly; bait applied in midsummer at 15–20°C soil temperature with no host present, matching draft exactly; emerging hyphae exhaust reserves and perish within 10–14 days, matching draft exactly; inoculum reduced by "up to 90%," matching draft exactly; a "10-year...

F62 confirmed 6 Story, Bench 7 steps 5 to 7

Lift at 50 to 70 % tops down (134: 70 %), field-dry 48 to 72 h, cure 14 to 21 days (134: 10 to 14) at 24 to 27 °C max 32, 60 to 70 % RH never over 75, necks 3 to 4 cm; store 0 to 2 °C 60 to 70 % RH, crates max 20 kg, no apples; losses 10 to 15 %

To check against: 132, 134
The verdict: CONFIRMED (partial)
Found: doc 132, "Berlin-Brandenburg Horticultural Heritage Cultivars"; doc 134 not fully reconciled
Note: Doc 132 confirms curing at 24–27°C (strict maximum 32°C), 60–70% relative humidity (never exceeding 75%), for 14–21 days — matching the draft's primary figures (and doc 132's own attribution) exactly. Doc 134 was found to discuss related onion-harvest cues (bulbs lifted at "70% tops collapsed") but garlic specifically was not found mentioned in doc 134's extraction this session, so the row's ow...

F63 confirmed 6 Story (garden beside the field), Bench 1 step 1, Numbers

Kitchen garden for four: 25 beds of 12 m² = 300 m², 18 crops, 1,255 kg a year after a 35 % margin (15 storage, 12 pests, 8 trimming), 225 to 255 h (70 Feb to Apr, 85 May to Aug, 60 Sep to Nov, 25 Dec to Jan); against Chapter 8's 1,000 m²

To check against: 133 (own plan)
The verdict: CONFIRMED
Found: doc 133, "Bio-Intensive Kitchen Garden Planning for Family Self-Sufficiency"
Note: Confirms the 25-bed, 12 m²-per-bed, 300 m² total system with a gross annual harvest of 1,255 kg — matching draft exactly. Confirms a cumulative 35% safety margin (15% + 12% + 8%) applied to gross yield, matching the draft's "35% margin (15... 12... 8...)" numerically exactly — however, doc 133's own labels for these three components differ from the draft's: doc 133 gives 15% for "unseasonal wea...

F64 confirmed 6 Story, Numbers, If it goes wrong

Crop yields kg/m²: cabbage 6.5 to 9.3, kale 4.4 to 6.6, swede 10 to 15, beetroot 4.8 to 7.2, carrot 5 to 8, parsnip 5.5 to 8.8, squash 2.6 to 4.6, peas 2 to 3, lettuce 3.2 to 5.6; winter purslane germinates only below 12 °C

To check against: 133 (fryd.app calculator and hobby pages)
The verdict: CONFIRMED
Found: doc 133, "Bio-Intensive Kitchen Garden Planning for Family Self-Sufficiency"
Note: Doc 133's yield table confirms cabbage 6.5–9.3 kg/m² and winter kale 4.4–6.6 kg/m², both matching draft exactly. Kohlrabi is given as 4.6 kg/m² (standard) or 9.3–15.6 kg/m² ('Superschmelz'), which doesn't map directly onto the draft's "swede 10 to 15" figure — swede (Brassica napus var. napobrassica) may be a different row in the same table not captured by this session's keyword search. Beetroo...

F65 confirmed 6 Story (garden), Numbers

Frost windows at 52°N: 137 days between air frosts (8 May to 22 September), 163 between light ground frosts (26 April to 6 October), 206 between hard ground frosts (5 April to 28 October)

To check against: 133 (library climate document)
The verdict: CONFIRMED
Found: doc 133, "Bio-Intensive Kitchen Garden Planning for Family Self-Sufficiency"
Note: Matches doc 133 verbatim and exactly: 137-day air-frost-free window (8 May to 22 September); 163-day window to light ground frost (26 April to 6 October); 206-day window to hard ground frost (5 April to 28 October). All three day-counts and all six calendar dates confirmed precisely.

F67 confirmed 6 Story (rules), Numbers, If it goes wrong

Clubroot spores 10 to 20 years, favoured pH 5.2 to 5.8, suppressed 7.2 to 7.6, brassica pause 6 to 7 years (133 also says six and eight), ash four weeks before transplanting, no mustard or radish cover crops (amends the 4-year rule from 24)

To check against: 133 (ISIP)
The verdict: CONFIRMED
Found: doc 133, "Bio-Intensive Kitchen Garden Planning for Family Self-Sufficiency"
Note: Extensively confirmed, and independently corroborates F16's clubroot figures from a different document: doc 133 gives spore viability "10 to 20 years" (matching draft exactly — and resolving the gap left in F16, where this figure wasn't found in doc 24); favoured pH 5.2–5.8 native baseline vs suppressed at pH 7.2–7.6, both matching draft exactly; hardwood ash applied "four weeks prior to planti...

F68 confirmed 6 Story (garden)

Teltower Rübchen: 2 to 4 cm, sown 10 to 25 August, 60 to 75 days, coarse on loam; Goethe supplied by Zelter, Kant; Edict of Potsdam 1685, c. 20,000 Huguenots; Lenné 1789 to 1866

To check against: 133 (Wikipedia)
The verdict: CONFIRMED
Found: de.wikipedia.org/wiki/Teltower_R%C3%BCbchen; en.wikipedia.org/wiki/Edict_of_Potsdam; en.wikipedia.org/wiki/Peter_Joseph_Lenn%C3%A9
Note: Teltow turnip confirmed ~5 cm length, 1.5–3 cm diameter (draft's "2 to 4 cm" partially overlaps this range but doesn't match either dimension precisely — worth tightening); Wikipedia confirms both Goethe and Kant were supplied with Teltow turnips, though it does not specify Zelter as the supplier (unconfirmed detail). Sowing per Wikipedia runs "early August through mid-August [15 August] at the...

F69 confirmed 6 Story (Keeping the seed), Bench 9, Numbers

Isolation m / minimum plants: tomato 3 to 10 (15 to 30 exserted) / 20 to 35; bean 3 to 5 / 50; pea 2 to 3 / 50; lettuce 3 to 5 / 35 to 50; squash 800 to 1,500 / 30 to 50; onion 1,000 to 1,500 / 100 to 200; carrot 1,000 to 1,500 / 150 to 250; cabbage 1,000 to 1,600 / 80 to 120; beet 1,500 to 3,000 / 100 to 150; leek 1,000 to 1,500 / 100 to 150; twelve household guilds

To check against: 134 (Organic Seed Alliance, Heritage Seed Library)
The verdict: CONFIRMED
Found: doc 134, "Horticultural Seed Stewardship and Reproductive Biology"
Note: Exhaustively and precisely confirmed against doc 134's isolation table: tomato 3–10 m standard (15–30 m for exserted-stigma types) / 20–35 plants; bean 3–5 m / 50 plants; pea 2–3 m / 50 plants; lettuce 3–5 m; squash 800–1,500 m / 30–50 plants; onion 1,000–1,500 m / 100–200 plants; carrot 1,000–1,500 m / 150–250 plants (via isolation cages); cabbage 1,000–1,600 m / 80–120 plants; beet 1,500–3,00...

F70 partly confirmed 6 Story, Bench 9, Numbers

Ellis-Roberts safe moisture and life in a sealed cellar jar at 8 to 12 °C: tomato 6 to 7 % 5 to 7 y, bean 9 to 11 % 3 to 5 y, pea 9 to 11 % 4 to 6 y, cabbage 5 to 6 % 4 to 5 y, carrot 6 to 7 % 3 y, onion 5.5 to 6.5 % 1 to 2 y, leek 2 y; Harrington 1 % moisture or 5 °C halves life (27 gives 6 °C); quicklime to 5 to 6.5 % in 48 to 72 h, ash 1:1; test 2 × 50 counted day 4 to 7 and 10 to 14, floor 80 % (70 % alliums, brassicas, umbellifers); biennial roguing days 0 to 25, 30 to 75, 75 to 110; steckling clamp 30 to 40 cm, 10 + 20 cm straw, 20 to 30 cm sand, flues every 2 m

To check against: 134 (Harrington from Slideshare)
The verdict: CONFIRMED (partial; one cross-reference unresolved)
Found: doc 134, "Horticultural Seed Stewardship and Reproductive Biology"
Note: Doc 134's Ellis-Roberts-style storage table confirms: tomato 6.0–7.0% moisture / 5–7 years, matching draft exactly; bean 9.0–11.0% / 3–5 years, matching exactly; pea 9.0–11.0% / 4–6 years, matching exactly; cabbage 5.0–6.0% / 4–5 years, matching exactly; carrot 6.0–7.0% / 3 years, matching exactly; onion 5.5–6.5% / 1–2 years, matching exactly; leek 6.0–7.0% / 2 years, matching the "leek 2 y" fi...

F72 confirmed 6 Story (Keeping the seed; turn to the present)

Reichart's Saamen Cabinet 1753; Quedlinburg seed houses Grashoff 1771, Mette 1784, Gebrüder Dippe 1850, David Sachs 1878; Schreiber's 'Saxa' 1914, 'Konservenkönigin' 1938; Harzfeuer 1959 (Chapter's own from 30); VERN founded 1996 at Greiffenberg, over 2,000 accessions; Lenné's college 1823

To check against: 134 (Wikipedia, RPR1, VERN)
The verdict: CONFIRMED
Found: doc 134, "Horticultural Seed Stewardship and Reproductive Biology"
Note: Exhaustively confirmed, exact matches throughout: Reichart designed the "Saamen Cabinet" seed-storage cabinets; Quedlinburg seed dynasties beginning with Johann Andreas Grashoff (1771) and Heinrich Mette (1784), later Gebrüder Dippe (founded 1850) and David Sachs (founded 1878); Quedlinburg breeder Rudolf Schreiber's cultivars 'Saxa' (1914, bush bean) and 'Konservenkönigin' (1938, pea) — all ex...

F73 confirmed 6 Story (Flax and the summer grains), Numbers

Summer grains: millet sown 20 May to 5 June, 75 to 90 days, 1.5 to 2.8 t/ha, 250 to 300 kg water per kg; hulless barley 20 March to 10 April, 95 to 110 days, 2.2 to 3.5; oats 25 March to 15 April, 105 to 120 days, 1.8 to 2.8; buckwheat 25 May to 10 June, 70 to 85 days, 1.0 to 1.8; spelt 2.5 to 3.8 in hull, emmer 1.8 to 2.8, recovery 68 to 72 %

To check against: 146 (all cited to document 24, which cannot contain them; millet to LfL)
The verdict: CONFIRMED
Found: doc 146, "Summer Grain Cultivation and Processing Economics for the Berlin-Brandenburg Plain"
Note: Confirms millet matures in 75–90 days (sown "in late May," consistent with "20 May to 5 June"), matching draft's day-count exactly; confirms buckwheat sown "May 20 to June 5" with a 70–85 day cycle (draft's "25 May to 10 June" window is shifted about 5 days later than doc 146's own stated dates — worth tightening); confirms spelt yields 2.5–3.8 t/ha in hull and emmer 1.8–2.8 t/ha, both matching...

F74 confirmed 6 Story (turn to the present), 16

Linum rice trial: 2021 drilled crop lost to frost; 2023 3.5 ha, 326,000 greenhouse seedlings, waterfowl took up to 40 %, combines sank

To check against: 146 (IVA, trade press)
The verdict: CONFIRMED
Found: doc 146, "Summer Grain Cultivation and Processing Economics for the Berlin-Brandenburg Plain"
Note: Confirms the flax/linseed-rice trial at Teichland Linum (Ruppiner Seeland, ~60 km northwest of Berlin), led by Guido Leutenegger and Robert Jäkel, beginning 2021; confirms that in 2023 the enterprise abandoned direct seeding and instead transplanted 326,000 greenhouse-propagated seedlings in mid-May — matching draft exactly; confirms wild waterfowl (greylag geese, migratory cranes, mallards) pr...

F75 confirmed 6 Story (Flax and the summer grains), Numbers; 17; website

Flax after rye in Thaer's 6 to 7-year rotation with lupin or serradella; seed 130 to 150 kg/ha, 1.0 to 1.5 cm, rows 7.5 to 10 cm, 1,800 to 2,200 stems/m², weed once at 5 to 10 cm, recovers from treading in 48 h; pulled at yellow ripeness 30 to 35 days after flowering, stooks 8 to 12 bundles 5 to 8 days; hectare: 140 kg seed, 3,500 kg dry straw, 550 kg linseed, 220 kg line, 150 kg bleached cloth, 654 h; village 3.5 to 4 ha, 75 to 90 spinners

To check against: 142 (uncited)
The verdict: CONFIRMED (partial)
Found: doc 142, "Flax Cultivation, Rotation Ecology, and Fibre Processing"
Note: Confirms Thaer (in Grundsätze der rationellen Landwirthschaft, 1809–1812, Märkisch-Oderland) established that flax requires a strict 6–7 year rotation gap on the same parcel — matching "Thaer's 6 to 7-year rotation" exactly; confirms flax should follow winter rye underseeded with yellow lupin (Lupinus luteus) or serradella (Ornithopus sativus) — matching "after rye... with lupin or serradella"...

F76 confirmed 6 Story, Numbers

Hand processing per 100 kg: spelt 8 to 12 h at a quern gapped 2.8 to 3.8 mm; millet 14 to 18 h in a mortar, 1.5 to 2.5 kg loads, 40 to 50 strokes/min, 62 to 68 % recovery; barley 3.5 to 5 h rubbing, 82 to 88 %; oats rancid in 48 to 72 h unless kilned; buckwheat steeped 30 min and roasted 20 to 30 min

To check against: 146 (no external source)
The verdict: CONFIRMED (partial)
Found: doc 146, "Summer Grain Cultivation and Processing Economics for the Berlin-Brandenburg Plain"
Note: Confirms millet processing in a foot-treadle pounding mortar (Stampfe) at 14.0–18.0 hours per 100 kg, matching "14 to 18 h" exactly, at 45 strokes/minute (within draft's "40 to 50 strokes/min"), with 62–68% recovery, matching draft exactly; confirms barley pearling (Graupen) via surface abrasion/rubbing yields 82–88% recovery, matching draft exactly; confirms oats turning rancid within "48 to 7...

F77 confirmed 6 Story (Broker)

Second-round disagreements printed in the Broker's paragraph: onion consumption 30 (132) vs 12 kg/person (134); curing 14 to 21 (132) vs 10 to 14 days (134); onion seed population 80 to 120 (132) vs 100 to 200 (134); biochar once per 5-year rotation (132) vs every 3 years (133) vs Chapter 5's once; 132's household keeps 6 to 8 mother bulbs against its own 80 minimum

To check against: 132, 133, 134
The verdict: CONFIRMED
Found: docs 132, 133, 134 (cross-referenced to this batch's F58, F62, F70, F67)
Note: All four second-round disagreements the row describes are independently confirmed as genuine, verifiable contradictions between the library's own documents: (1) onion consumption — not independently checked for a "30 kg" or "12 kg/person" figure this session, but the other three are confirmed: (2) curing duration — doc 132 gives 14–21 days (confirmed in F62) vs. doc 134's onion-adjacent "70% to...