{
  "schema": {
    "name": "syntropa_farm_dataset",
    "version": "2.1-partial",
    "purpose": "Seeraga Samba harvest history (2024 & 2025 cycles) + 2026 proposal — Nammalvar Farm 1. Partial snapshot: only sections listed in sections_present.",
    "generated_on": "2026-07-04",
    "generated_by": "Renuka P + Selvin (Thiru) — derived from Claude chat data + field memory",
    "sections_present": ["farm", "crop_history", "derived_insights", "metadata"]
  },

  "farm": {
    "id": "NAMMALVAR-1",
    "slug": "nammalvar",
    "name_ta": "நம்மாழ்வார் பண்ணை 1",
    "name_en": "Nammalvar Farm 1",
    "village": "Vannarapatti (வண்ணாரப்பட்டி)"
  },

  "crop_history": [
    {
      "season": "2024-25",
      "crop": "Seeraga Samba (சீரக சம்பா)",
      "crop_ta": "சீரக சம்பா",
      "sop_hint": "seeraga-samba",
      "nursery_sown": "2024-10-07",
      "field_planted_main": "2024-11-06",
      "field_planted_balance": "2024-11-15",
      "harvest": "2025-02-08",
      "area_acres": 2,
      "area_note": "~2 acres",
      "vayals": [5, 6, 7, 8],
      "yield_kg_per_acre": 818,
      "yield_total_kg": 1635,
      "duration_days_nursery_to_harvest": 124,
      "status": "harvested",
      "outcome": "SUCCESS"
    },
    {
      "season": "2025-26",
      "crop": "Seeraga Samba (சீரக சம்பா)",
      "crop_ta": "சீரக சம்பா",
      "sop_hint": "seeraga-samba",
      "nursery_sown": "2025-09-06",
      "field_planted_main": "2025-10-03",
      "harvest": "2026-01-09",
      "area_acres": 2,
      "vayals": [5, 6, 7, 8],
      "yield_kg_per_acre": 750,
      "yield_total_kg": 1500,
      "duration_days_nursery_to_harvest": 125,
      "status": "harvested",
      "outcome": "SUCCESS"
    }
  ],

  "derived_insights": {
    "nursery_days_range": "27-30",
    "field_days_range": "94-98",
    "total_days_range": "124-125",
    "yield_benchmark_kg_per_acre": "750-818",
    "yield_trend": "-8.3% (818 -> 750) — cause to be investigated by Renuka before the 2026 cycle (soil fertility? input discipline? spacing?)",
    "same_vayals_both_years": [5, 6, 7, 8],
    "rotation_note": "Same vayals two years running — consider soil rest / rotation review",
    "season_rule_evidence": "Both Sep/Oct-sown cycles harvested Jan/Feb = SUCCESS (818 & 750 kg/ac). Mar-2026 wrong-season Seeraga Samba at Tholkappiyar = TOTAL FAILURE (~1 bag from 1.75 ac). Confirms standing rule SR-001: Seeraga Samba only for Jan/Feb harvest window.",
    "proposed_cycle_2026": {
      "status": "PROPOSED — requires Renuka + Thalaivar confirmation before entering crop-cycles.json",
      "nursery_sow": "2026-09-06",
      "field_plant": "2026-10-03",
      "expected_harvest": "2027-01-09",
      "vayals": [5, 6, 7, 8],
      "august_prep": "Seed selection + Bijamrutham; nursery bed; Jeevamritham preparation",
      "note": "Check rotation fit after Poongar nel harvest at this farm"
    }
  },

  "metadata": {
    "report_pdf": "reports/Nammalvar_SeeragaSamba_Report_04Jul2026.pdf",
    "doc_code": "NMZ-SS-2026-01",
    "credit_ta": "தயாரிப்பு: ரேணுகா P + செல்வின் (திரு) · 04-Jul-2026",
    "syntropa_use": "Render as a section on farm-nammalvar.html with PDF + JSON download buttons; feed cycles into plans/crop-cycles.json (historical) and cycle-proposals (2026)."
  }
}