{
  "title": "Collard Green Yield & Cold-Chain Specification",
  "author": "Rony Thomas",
  "location": "La Grange, KY → Mars Colony Dome",
  "version": "1.0",
  "grounded_in": {
    "wikidata_qid": "Q20134",
    "subject": "Brassica oleracea var. acephala (collard greens)",
    "protocol": "Controlled-Atmosphere Storage v1.4"
  },
  "calculation_model": {
    "yield_formula": "seeds × germination_rate × survival_factor",
    "survival_factor": {
      "base": 0.95,
      "light_dependency": "min(light_hours / 14, 1.0)"
    },
    "biomass_per_head_kg": 0.85,
    "shelf_life_base_weeks": 4,
    "stasis_multiplier": 3.5
  },
  "cold_chain_specs": {
    "temperature_f": {
      "target": 32.0,
      "tolerance": 0.5
    },
    "relative_humidity_pct": {
      "min": 95,
      "max": 98
    },
    "co2_flush_ppm": {
      "min": 1000,
      "max": 1500
    }
  },
  "environmental_targets": {
    "la_grange_baseline": {
      "soil_ph_range": [6.2, 6.8],
      "nitrogen_ppm_range": [45, 60]
    },
    "mars_dome_target": {
      "soil_ph": 6.5,
      "nitrogen_ppm": 50,
      "medium": "regolith_mix_with_hydroponic_feed"
    }
  },
  "growth_cycles_days": {
    "fast_mature": 75,
    "standard": 90,
    "hardy_winter": 105
  },
  "germination_rates": {
    "usda_grade_a": 0.92,
    "standard_reserve": 0.85,
    "emergency_stock": 0.78
  },
  "optimal_light_hours": 14,
  "transit_temperature_f": {
    "earth": 34,
    "mars_active_cooling": 32
  }
}