Treatments | RI | RII | RIII | Mean |
T1 = Control (no urea) | 3.0 | 3.2 | 3.2 | 3.2 |
T2 = Recommended urea soil applied (130 kg・ha−1) | 5.0 | 4.8 | 4.8 | 4.9 |
T3 = 1% urea at 35 days after sowing | 5.1 | 5.4 | 5.5 | 5.3 |
T4 = 1% urea at 60 days after sowing | 5.1 | 5.3 | 5.4 | 5.3 |
T5 = 1% urea at 85 days after sowing | 5.1 | 5.3 | 5.3 | 5.2 |