Table 5 Parameters and the corresponding values needed for onion cultivation in soil and DWC hydroponics.
Parameter ranges for soil medium | Parameter Ranges for DWC Hydroponics | ||
|---|---|---|---|
Parameters | Values/Ranges | Parameters | Values/Ranges |
Cultivation Medium | Mix of sand, compost, and garden soil | Cultivation Medium | Nutrient mixed water (DWC) |
Cultivation Month | July–August | Cultivation Month | Throughout the year |
pH | 5.9–6.3 | pH | 6.0–6.4 |
TDS | 600–750 mg/l | ||
Temperature | 28–34 °C | Temperature | 29–32 °C |
Rainfall | 600–900 mm | ||
N-P-K | 2–1-1 | N-P-K (Initial Week) | 10–20-10 |
N-P-K (Subsequent Weeks) | 20–05-05 | ||
CO2 | < 900 ppm | ||
O2 | > 19% | ||
EC | 3–4.5 dS/m | EC | 1–2.2 mS/cm |
Humidity | 64–72% | ||
Additional Nutrients | Sulphur, Magnesium | ||
