Calculate Seed Density and Tray Count
1 hourSelect grams per tray for variety, calculate trays needed for weekly sales target, and plan soak time for mucilaginous seeds.
Field context
This workflow is part of 4 niche fields
Complete guide for microgreens production — step-by-step workflow, tools, checklist, and expert tips to get started.
Select grams per tray for variety, calculate trays needed for weekly sales target, and plan soak time for mucilaginous seeds.
Hang lights at PPFD for microgreen stage, run 16–18 hour photoperiod, convert to DLI to compare varieties.
Bottom-water to keep leaves dry, harvest at first true leaf for most varieties, weigh yield per tray for density refinement.
Use yield estimator to scale tray count, schedule seeding dates backward from delivery day, track power cost per tray.
Calculates seed weight per 1020 tray for variety-specific optimal density.
Sets LED height for 150–300 PPFD typical microgreen range.
Verifies daily light integral across photoperiod for consistent quality.
Schedules seeding date backward from delivery for peak freshness.
Microgreen Seed Density
| Variety | g/tray | Days to harvest |
|---|---|---|
| Sunflower | 120–150 | 10–12 |
| Pea | 200–250 | 10–14 |
| Radish | 25–35 | 6–8 |
| Broccoli | 20–30 | 8–10 |
Adjust pH before adding nutrients — pH drift after mixing wastes expensive inputs.
Keep reservoir 65–70°F — warmer water holds less oxygen and invites root rot.
Drip loops on all cords entering reservoirs and GFCI on every outlet.