Fertilizer Rate Unit Dry Season Wet Season 0% RR N-P2O5-K2O in kg·ha−1 0-0-0 0-0-0 25% RR N-P2O5-K2O in kg·ha−1 30-15-15 22.5-7.5-7.5 50% RR N-P2O5-K2O in kg·ha−1 60-30-30 45-15-15 100% RR N-P2O5-K2O in kg·ha−1 120-60-60 90-30-30 or       0% RR N-P-K in kg·ha−1 0-0-0 0-0-0 25% RR N-P-K in kg·ha−1 30-7-13 22.5-3-6 50% RR N-P-K in kg·ha−1 60-13-25 45-7-13 100% RR N-P-K in kg·ha−1 120-26-50 90-13-25

Table 2: Inorganic fertilizer treatments in all four experimental seasons as ratio of the Recommended Rate (RR) and as actual nutrients applied in the dry and wet season.