ONLINE
20-GAL CROP STEERING HUD
BATCH VOL: 20 GALLONS
SUBSTRATE: 10-GAL (70/30)
EMITTER: 3 OZ / MIN
P1 SHOTS: 1 HR APART
FIELD CAP: 50% MAX VWC
FLOWER LIGHTS: 06:00-18:00
Seedling / Clone VWC Target Curve
- - 50% MAX SATURATION CEILINGTARGET CURVE (ILLUSTRATIVE) - NOT LOGGED DATA. X-AXIS = CLOCK TIME, LIGHTS ON 06:00.
CLIMATE (DAY / NIGHT)
75-78°F / 70-72°F
75-80% RH | 0.4-0.6 kPa VPD
PHOTOBIOLOGY & CO2
150-250 PPFD (18/6)
Ambient CO2 (~400 PPM)
20-GAL BATCH & WATER
RO Base (<0.1 EC)
100mL Grow A/B | 60mL CaMg
Seedling / Clone Stage Protocol
High-humidity propagation parameters. Maintain steady moisture (48% to 50% VWC) in starter plugs or small cubes without waterlogging delicate taproots.
| Parameter | Target Specification | Operational Protocol |
|---|---|---|
| 20-GAL NUTRIENT MIX | 100 mL Grow B & A | 60 mL CaMg | 20 mL Cleanse | Target EC 0.9 - 1.2 (pH 5.6 - 5.8). Pre-soak starter plugs. |
| IRRIGATION VOLUME | 2 - 4 oz per pulse (Hand or Micro-Drip) | Irrigate lightly when plug surface lightens; avoid deep drybacks. |
| CANOPY ARCHITECTURE | Zero Defoliation | Establish root zone and first 2-3 true node sets before transplant. |
CLIMATE (DAY / NIGHT)
78-80°F / 72-74°F
65-70% RH | 0.8-1.0 kPa VPD
PHOTOBIOLOGY & CO2
400-500 PPFD (18/6)
CO2: 400-600 PPM
FEED & DAILY VOLUME
RO Base | 2.1 EC
0.56 Gal (72 oz) / pot / day
Early Vegetative Protocol (Weeks 1-2)
Root expansion phase into 10-gal pots. Shallow overnight dryback to 45% VWC encourages roots to search outward before ramping back to 50% max field capacity.
| Timestamp | Steering Phase | Duration & Volume | Operational Objective |
|---|---|---|---|
| 06:00 AM | WAKE UP | 0 mins (0 oz) | Lights On. 2-hour thermal transpiration warmup. |
| 08:00 AM | P1: RAMP UP | 8 mins (24 oz) | First rehydration pulse replacing overnight dryback. |
| 09:00 AM | P1: RAMP UP | 8 mins (24 oz) | Reaches 50% max VWC field capacity. |
| 01:00 PM | P2: MAINTAIN | 4 mins (12 oz) | Midday moisture and EC stabilization. |
| 05:00 PM | P2: MAINTAIN | 4 mins (12 oz) | Late afternoon top-off prior to P3 overnight dryback. |
| CANOPY OPS | APICAL TOPPING | Top at Node 4-5 | Break apical dominance to force symmetrical lateral branching. |
CLIMATE (DAY / NIGHT)
80-82°F / 72-74°F
60-65% RH | 1.0-1.2 kPa VPD
PHOTOBIOLOGY & CO2
600-750 PPFD (18/6)
CO2: 800-1000 PPM
FEED & DAILY VOLUME
RO Base | 2.1 EC
1.17 Gal (150 oz) / pot / day
Late Vegetative Protocol (Weeks 3-4)
Vigorous vegetative steering (45% to 50% VWC). Frequent P2 maintenance shots drive rapid structural fill across the SCROG net before flipping to 12/12.
| Timestamp | Steering Phase | Duration & Volume | Operational Objective |
|---|---|---|---|
| 06:00 AM | WAKE UP | 0 mins (0 oz) | Lights On. Canopy heats up. |
| 08:00 AM | P1: RAMP UP | 10 mins (30 oz) | Replaces overnight dryback. |
| 09:00 AM | P1: RAMP UP | 10 mins (30 oz) | Builds substrate moisture toward saturation. |
| 10:00 AM | P1: RAMP UP | 10 mins (30 oz) | Hits 50% VWC saturation and initiates runoff. |
| 01:00 PM | P2: MAINTAIN | 5 mins (15 oz) | Midday transpirational support. |
| 04:00 PM | P2: MAINTAIN | 5 mins (15 oz) | Stabilizes root-zone EC during peak light. |
| 07:00 PM | P2: MAINTAIN | 5 mins (15 oz) | Late-day photosynthesis support. |
| 10:00 PM | P2: MAINTAIN | 5 mins (15 oz) | Final maintenance pulse before lights out at 12:00 AM. |
| CANOPY OPS | SCROG WEAVE | Lollipop & Tuck | Clear bottom third of legs and weave tops evenly across net. |
CLIMATE (DAY / NIGHT)
82-84°F / 74-76°F
55-60% RH | 1.2-1.4 kPa VPD
PHOTOBIOLOGY & CO2
800-950 PPFD (12/12)
CO2: 1100-1300 PPM | Lights 06:00-18:00
FEED & DAILY VOLUME
RO Base | 2.1 EC
0.84 Gal (108 oz) / pot / day
Flower Phase 1: Stretch (Weeks 1-3)
Generative crop steering. Deep dryback down to 35% VWC limits vertical stem elongation, stacks tight internodes, and triggers aggressive flower site initiation.
| Timestamp | Steering Phase | Duration & Volume | Operational Objective |
|---|---|---|---|
| 06:00 AM | WAKE UP | 0 mins (0 oz) | Lights On. Generative morning delay. |
| 08:00 AM | P1: RAMP UP | 12 mins (36 oz) | Heavy initial shot to break overnight drought. |
| 09:00 AM | P1: RAMP UP | 12 mins (36 oz) | Pushing substrate toward field capacity. |
| 10:00 AM | P1: RAMP UP | 12 mins (36 oz) | Hits 50% VWC full saturation and runoff reset. |
| 11:00 AM+ | P3: DRYBACK | 0 mins (0 oz) | Zero P2 shots. Early cutoff forces deep 15% generative dryback. |
| CANOPY OPS | DAY 21 STRIP | Heavy Defoliation | Remove interior fan leaves blocking bud sites and airflow. |
CLIMATE (DAY / NIGHT)
78-80°F / 70-72°F
50-55% RH | 1.4-1.5 kPa VPD
PHOTOBIOLOGY & CO2
1000-1150 PPFD (12/12)
CO2: 1300-1500 PPM | Lights 06:00-18:00
FEED & DAILY VOLUME
RO Base | 2.1 - 2.6 EC
1.15 Gal (147 oz) / pot / day
Flower Phase 2: Bulking (Weeks 4-6)
Vegetative flower steering (42% to 50% VWC). Steady P2 maintenance shots prevent root-zone EC spikes while plants drink heavily to swell calyxes. All shots land inside the 12-hour light window.
| Timestamp | Steering Phase | Duration & Volume | Operational Objective |
|---|---|---|---|
| 06:00 AM | WAKE UP | 0 mins (0 oz) | Lights On. |
| 08:00 AM | P1: RAMP UP | 8 mins (24 oz) | Gentle replacement of shallow 8% dryback. |
| 09:00 AM | P1: RAMP UP | 8 mins (24 oz) | Approaching field capacity. |
| 10:00 AM | P1: RAMP UP | 8 mins (24 oz) | Achieves 50% VWC saturation. |
| 11:30 AM | P2: MAINTAIN | 5 mins (15 oz) | Midday transpiration offset. |
| 01:00 PM | P2: MAINTAIN | 5 mins (15 oz) | Stabilizes root-zone EC under peak PPFD. |
| 02:30 PM | P2: MAINTAIN | 5 mins (15 oz) | Afternoon hydration support. |
| 04:00 PM | P2: MAINTAIN | 5 mins (15 oz) | Late-day water uptake. |
| 05:00 PM | P2: MAINTAIN | 5 mins (15 oz) | Final shot, 1 hr before lights off, to limit overnight salt spike. |
| CANOPY OPS | DAY 42 CLEANUP | Selective Pluck | Clear shading top fans and support heavy colas in SCROG. |
CLIMATE (DAY / NIGHT)
72-75°F / 62-65°F
40-45% RH | 1.5-1.7 kPa VPD
PHOTOBIOLOGY & UV/IR
700-800 PPFD (Dimmed)
ACTIVATE UV-B & 700nm IR | Lights 06:00-18:00
FEED & DAILY VOLUME
Wk 7: 2.3 EC | Wk 8-9: 1.5 EC
0.70 Gal (90 oz) / pot / day
Flower Phase 3: Ripening & Finish (Weeks 7-9)
Extreme generative stress (25% to 50% VWC). Delayed morning P1 and 21-hour dryback simulate autumn drought to maximize trichomes and volatile sulfur compounds.
| Timestamp | Steering Phase | Duration & Volume | Operational Objective |
|---|---|---|---|
| 06:00 AM | WAKE UP | 0 mins (0 oz) | Lights On. 3-hour delayed watering window. |
| 09:00 AM | P1: RAMP UP | 15 mins (45 oz) | Large late-morning shot breaks severe drought stress. |
| 10:00 AM | P1: RAMP UP | 15 mins (45 oz) | Hits 50% VWC runoff to flush excess salt accumulation. |
| 11:00 AM+ | P3: DRYBACK | 0 mins (0 oz) | Total cutoff for 21 hours of aggressive senescence steering. |
| HARVEST OPS | TRICHOME AUDIT | Loupe Inspection | Monitor cloudy/amber ratio; prep dry room at 60°F / 60% RH. |
Athena Blended (No Fade) — 20-Gallon Batch Matrix
Vegetative & Propagation (20-Gallon Reservoir)
| Growth Stage | pH Target | Grow B | Grow A | CaMg | Cleanse | Target EC |
|---|---|---|---|---|---|---|
| SEEDLING / CLONE | 5.6 - 5.8 | 100 mL | 100 mL | 60 mL | 20 mL | 0.9 - 1.2 |
| EARLY & LATE VEG | 5.8 - 6.2 | 220 mL | 220 mL | 60 - 100 mL | 40 - 100 mL | 2.1 |
Flowering Weeks 1-9 (20-Gallon Reservoir / Without Fade)
| Phase / Week | Bloom B | Bloom A | PK | CaMg | Cleanse | Target EC |
|---|---|---|---|---|---|---|
| WK 1-2 (STRETCH) | 240 mL | 240 mL | 0 mL | 60 - 100 mL | 40 - 100 mL | 2.1 |
| WK 3 (STRETCH) | 240 mL | 240 mL | 80 mL | 0 mL | 40 - 100 mL | 2.1 |
| WK 4 (BULKING) | 240 mL | 240 mL | 100 mL | 0 mL | 40 - 100 mL | 2.1 |
| WK 5 (BULKING) | 200 mL | 200 mL | 180 mL | 0 mL | 40 - 100 mL | 2.3 |
| WK 6 (BULKING) | 180 mL | 180 mL | 200 mL | 0 mL | 40 - 100 mL | 2.4 - 2.6 |
| WK 7 (RIPENING) | 100 mL | 100 mL | 240 mL | 0 mL | 40 - 100 mL | 2.3 |
| WK 8-9 (FINISH) | 80 mL | 80 mL | 200 mL | 0 mL | 40 - 100 mL | 1.5 |
ONLINE
VPD STEERING HUD
LOAD STAGE TARGET
FORMULA: SVP(LEAF) - SVP(AIR) x RH
SVP: TETENS (KPA)
TARGETS: DAYTIME SOP
TIP: TAP / DRAG THE MAP
CURRENT VPD
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AIR / LEAF TEMP
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VS STAGE TARGET
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VPD Heatmap
- - DASHED ZONE = STAGE TARGET (TEMP + VPD)Calculator Controls
LEAF OFFSET = HOW MUCH COOLER THE LEAF SURFACE IS THAN THE AIR (0 = AIR-TEMP VPD ONLY). THE STAGE ZONE IS BUILT FROM THE SOP TEMP AND VPD TARGETS ONLY; ITS RH RANGE IS CALCULATED, SO IT SHIFTS WITH THE LEAF OFFSET. TARGETS ARE DAYTIME LIGHTS-ON VALUES; READINGS VARY WITH SENSOR PLACEMENT AND LEAF-TEMP METHOD.