Table 1. Drip fertigation schedule and the amounts of water and fertilizers.
Fertigation time (d-m) |
13–06 | 23–06 | 04–07 | 12–07 | 23–07 | 04–08 | 12–08 | 22–08 | 30–08 | 04–09 |
---|---|---|---|---|---|---|---|---|---|---|
Water (mm ha-1) | 45 | 52.5 | 52.5 | 60 | 60 | 52.5 | 45 | 45 | 30 | 22.5 |
N (kg ha-1) | 7.5 | 22.5 | 37.5 | 45 | 45 | 37.5 | 22.5 | 7.5 | 0 | 0 |
P2O5 (kg ha-1) | 7.5 | 10.5 | 12 | 15 | 15 | 15 | 9 | 6 | 0 | 0 |
K2O (kg ha-1) | 5 | 7 | 8 | 10 | 10 | 10 | 6 | 4 | 0 | 0 |
Nitrapyrin (kg ha-1) | 0.075 | 0.225 | 0.375 | 0.45 | 0.45 | 0.375 | 0.225 | 0.075 | 0 | 0 |
The N rates are only for the urea and the urea+nitrapyrin treatments, nitrapyrin rates are only for the urea+nitrapyrin treatment, the rates of water, P2O5 and K2O are for all the treatments.