{
    "schema": 1,
    "id": "shiitake-sawdust-block",
    "version": "2.0.0",
    "species": "Lentinula edodes",
    "common_name": "Shiitake",
    "strain": "WR-46",
    "author": "Agriculture Novel",
    "tier": "pro",
    "notes": "The long crop. Eight to twelve weeks of colonisation before anything happens, then a browning phase that most first-time growers mistake for contamination and throw away. Lower humidity than oyster — over-humidifying shiitake causes rot, and the instinct to push RH to 92% is the commonest way to lose a block.",
    "validation": "Literature-derived. Not yet validated on a farm.",
    "alarms": {
        "temp_high_c": 30,
        "temp_low_c": 8,
        "rh_low_pct": 65,
        "co2_high_ppm": 4000
    },
    "stages": [
        {
            "key": "colonization",
            "label": "Spawn run",
            "advance": {
                "on": "days",
                "value": 42,
                "or_manual": true
            },
            "targets": {
                "air_temp_c": {
                    "sp": 24,
                    "deadband": 2,
                    "min": 21,
                    "max": 27
                },
                "rh_pct": {
                    "sp": 80,
                    "deadband": 5
                },
                "co2_ppm": {
                    "sp": 6000,
                    "deadband": 2500
                }
            },
            "light": {
                "hours_on": 0,
                "lux": 0
            },
            "fae": {
                "mode": "co2_driven",
                "min_exchanges_per_hour": 0.3
            },
            "note": "Six weeks minimum, and eight to twelve is common. There is no way to hurry this and every attempt costs yield."
        },
        {
            "key": "browning",
            "label": "Browning",
            "advance": {
                "on": "days",
                "value": 14,
                "or_manual": true
            },
            "targets": {
                "air_temp_c": {
                    "sp": 21,
                    "deadband": 2
                },
                "rh_pct": {
                    "sp": 75,
                    "deadband": 5
                },
                "co2_ppm": {
                    "sp": 1500,
                    "deadband": 600
                }
            },
            "light": {
                "hours_on": 12,
                "lux": 500
            },
            "fae": {
                "mode": "co2_driven",
                "min_exchanges_per_hour": 2
            },
            "note": "The block forms a brown skin. This is the crop working, not a contaminant. Light and fresh air drive it; humidity comes down to let the skin set."
        },
        {
            "key": "cold_shock",
            "label": "Cold shock",
            "advance": {
                "on": "days",
                "value": 1,
                "or_manual": true
            },
            "targets": {
                "air_temp_c": {
                    "sp": 12,
                    "deadband": 2
                },
                "rh_pct": {
                    "sp": 88,
                    "deadband": 4
                },
                "co2_ppm": {
                    "sp": 1200,
                    "deadband": 500
                }
            },
            "light": {
                "hours_on": 12,
                "lux": 500
            },
            "fae": {
                "mode": "co2_driven",
                "min_exchanges_per_hour": 2
            },
            "note": "Twelve to twenty-four hours cold, traditionally with a soak. The shock is the fruiting trigger for this species."
        },
        {
            "key": "fruiting",
            "label": "Fruiting",
            "advance": {
                "on": "days",
                "value": 7,
                "or_manual": true
            },
            "targets": {
                "air_temp_c": {
                    "sp": 16,
                    "deadband": 1.5
                },
                "rh_pct": {
                    "sp": 85,
                    "deadband": 3
                },
                "co2_ppm": {
                    "sp": 900,
                    "deadband": 350
                },
                "vpd_kpa": {
                    "sp": 0.27,
                    "deadband": 0.09
                }
            },
            "light": {
                "hours_on": 12,
                "lux": 600
            },
            "fae": {
                "mode": "co2_driven",
                "min_exchanges_per_hour": 4
            },
            "note": "85%, not 92%. Shiitake caps crack decoratively at a slightly higher deficit and that cracking is what the premium grade is."
        },
        {
            "key": "harvest",
            "label": "Harvest",
            "advance": {
                "on": "harvested",
                "or_days": 3
            },
            "targets": {
                "air_temp_c": {
                    "sp": 16,
                    "deadband": 1.5
                },
                "rh_pct": {
                    "sp": 82,
                    "deadband": 4
                },
                "co2_ppm": {
                    "sp": 1000,
                    "deadband": 400
                }
            },
            "light": {
                "hours_on": 12,
                "lux": 600
            },
            "fae": {
                "mode": "co2_driven",
                "min_exchanges_per_hour": 3.5
            },
            "note": "Pick when the cap is still curled under. Flat caps have already dropped most of their spores and most of their price."
        },
        {
            "key": "rest_between_flush",
            "label": "Rest and re-soak",
            "advance": {
                "on": "days",
                "value": 14,
                "or_manual": true
            },
            "targets": {
                "air_temp_c": {
                    "sp": 21,
                    "deadband": 2
                },
                "rh_pct": {
                    "sp": 78,
                    "deadband": 5
                },
                "co2_ppm": {
                    "sp": 2000,
                    "deadband": 800
                }
            },
            "light": {
                "hours_on": 0,
                "lux": 0
            },
            "fae": {
                "mode": "co2_driven",
                "min_exchanges_per_hour": 1
            },
            "note": "Two weeks to recover, then soak the block in cold water overnight to re-trigger. Blocks give four to six flushes over five or six months."
        }
    ]
}