Table 4 Range and average of fertilizer application rate of the 54 trials.
From: Establishing grading indices of available soil potassium on paddy soils in Hubei province, China
Treatment | N | P2O5 | K2O | |||
|---|---|---|---|---|---|---|
Range | Ave. | Range | Ave. | Range | Ave. | |
K0 | 135~180 | 166 ± 12 | 45~90 | 62 ± 13 | 0 | 0 |
K1 | 135~180 | 166 ± 12 | 45~90 | 62 ± 13 | 22~60 | 41 ± 24 |
K2 | 135~180 | 166 ± 12 | 45~90 | 62 ± 13 | 45~120 | 85 ± 29 |
K3 | 135~180 | 166 ± 12 | 45~90 | 62 ± 13 | 67~180 | 128 ± 34 |
