Basil
In DWC the crop-critical signal is dissolved oxygen, not EC, and this is the one place in the module where that is literally true: EC out of band for a day costs growth, oxygen out of band for a night costs the crop. The air pump relay reading "on" proves nothing — a clogged stone and a perished diaphragm look identical from the relay. Measure the oxygen.
What kills this system: Dissolved oxygen trend, plus current sensing on the air pump. A closed relay is not evidence of aeration.
| Stage | Days | pH | EC mS/cm | Water °C | DO mg/L | Light |
|---|---|---|---|---|---|---|
| Establishment | 14 | 5.6 – 6.4 | 0.90 – 1.30 | 22.0 | 7.0 | 16h |
| Basil likes it warmer than lettuce and will sulk below 18 °C air. The reservoir still has to stay under 24. | ||||||
| Cut and come again | 45 | 5.6 – 6.5 | 1.40 – 1.90 | 22.0 | 7.0 | 16h |
| Harvest above a node pair and the plant carries on for months. Let it flower and the leaf goes bitter and the plant stops — the photoperiod above is deliberately short of what triggers flowering in most Genovese lines. | ||||||
Download as a .hydrorecipe file Run it against your water
A plain JSON file with no account attached to it. Pull it onto a controller with curl from a shed, or send it to the farm down the road as an attachment.
Every band on this site is a literature-derived starting point. None of them has been measured on your water, your cultivar or your polyhouse, and the variable that decides most of it — the alkalinity of what comes out of your borewell — is one this page cannot know. Validate on a small block before you commit a season.