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DIY Agriculture

Sesame — Fertilization

Metadata research draftEvidence limits

⚠️ Status: metadata draft. Every DOI below is a candidate metadata record from the survey research/sesame-seeds/report.md — title and identifier only, not screened evidence. These are field-trial records whose sites, soils, cultivars, and rates are unread; no fertilizer rate, nutrient ratio, or compost/amendment recommendation is asserted, and the survey names organic amendments as a weak coverage area (§7). Substantive values remain Unknown until S-#### source notes exist (docs/methodology/evidence.md). Not growing advice.

What the corpus holds

Section titled “What the corpus holds”
  • The report shortlist contains condition-bound nitrogen and sulphur trials plus a biochar/soil-properties candidate; the broader machine scan is unscreened and noisy. It does not establish a household compost or nutrient program. Evidence: Known (coverage statement); every nutrient recommendation — Evidence: Unknown.
  • All fertility fields in data/crops/sesame.yaml are unknown.

Nitrogen candidates

Section titled “Nitrogen candidates”
  • Nitrogen rates, efficiency, and cultivar seed-yield response (10.1080/00103624.2018.1510949, 2018). Title-level note: a cultivar-dependent nitrogen response means any future number must carry its cultivar; none is offered now.
  • Nitrogen fertilization and growth/seed yield (10.1155/2019/5027254, 2019) — same status: existence of a trial, not its outcome.

Sulphur and amendment context

Section titled “Sulphur and amendment context”
  • Sulphur and nutrient uptake/seed yield (10.1007/s12517-021-07229-6, 2021) — a sulphur-response candidate; no rate or soil context is verified.
  • Biochar addition, sesame growth/yield, mineral nutrients, and soil properties (10.3390/agronomy9020055, 2019) — an amendment candidate, not evidence for household compost or a transferable application rate.
  • Phosphorus and potassium programs for the intended plot remain Evidence: Unknown; no candidate on this page supplies an accepted value.

Why field-trial rates do not transfer

Section titled “Why field-trial rates do not transfer”
  • Open question 7 asks “What fertilizer or compost strategy is suitable for a small plot without transferring field-trial rates blindly?” — the project’s own framing. A rate measured on a research station with a specific cultivar, soil, water regime, and density is a condition-bound result, not a garden instruction (docs/methodology/evidence.md “Context”).
  • Cultivar, soil, water regime, and density are mandatory context; a single context-free “sesame nitrogen rate” would remain misleading even after screening.

Units and recording

Section titled “Units and recording”
  • Future nutrient values will be recorded as rates with units and conditions per docs/methodology/units.md — and always with the cultivar, water regime, and soil they were measured on. None exists yet.

Screening priority and corpus share

Section titled “Screening priority and corpus share”
  • The analyzer found 44 fertility/nutrient metadata hits, but this broad unscreened count includes records that may not answer household management questions. The shortlist above is a priority set, not the entire evidence base.
  • Highest-value screening target on title: the nitrogen × cultivar record (10.1080/00103624.2018.1510949), because cultivar-dependence is a major transfer risk for a household using a local variety.

Application questions with no accepted evidence

Section titled “Application questions with no accepted evidence”
  • Timing (basal vs split application, and by growth stage) — no accepted candidate establishes it; Evidence: Unknown.
  • Deficiency recognition (what sesame nitrogen/potassium/sulphur shortage looks like in the field) — no accepted candidate establishes it; Evidence: Unknown. Until sources arrive, only neutral observation records (plant appearance, stage, date) are honest.

Small-scale relevance

Section titled “Small-scale relevance”
  • A household grower’s realistic questions — compost or not, how much, when, and what the plot already supplies — are precisely the survey’s weak spots (organic amendments, §7). The honest position: Evidence: Unknown, with E1’s small-plot records as the first local instrument.
  • If a grower improvises any input, the record-keeping standard stays the same: cultivar, soil, water, stage, and observed outcome — so the observation can later become evidence instead of anecdote.

Unknowns and experiments

Section titled “Unknowns and experiments”
  • Nitrogen, phosphorus, potassium, sulphur, and organic-amendment responses for the intended plot — Evidence: Unknown (all fertility fields).
  • Interaction of fertility with water availability in practical terms — Evidence: Unknown (candidate unread).
  • Compost strategy for a small plot — Evidence: Unknown; Evidence: Needs experiment alongside E1 (spacing/density with emergence and branching records).
Section titled “Related pages”

Provenance

Section titled “Provenance”