Table 12.
Phosphorus balance in soil at the end of cropping system.
| Treatment | Initial Fertility (kg/ha) |
P Added (kg/ha) |
P Uptake (kg/ha) |
Computed Balance (kg/ha) |
Actual Fertility after Harvest (kg/ha) |
Net Gain/Loss (kg/ha) |
|---|---|---|---|---|---|---|
| Nutrient management in rice | ||||||
| G1 | 17.3 | 126.7 | 37.7 | 89.0 | 20.4 | 3.1 |
| G2 | 17.3 | 130.6 | 45.1 | 85.5 | 21.5 | 4.2 |
| G3 | 17.3 | 135.6 | 57.4 | 78.2 | 24.5 | 7.2 |
| G4 | 17.3 | 115.6 | 30.7 | 84.9 | 19.6 | 2.3 |
| G5 | 17.3 | 176.6 | 53.1 | 123.5 | 26.2 | 8.9 |
| G6 | 17.3 | 161.6 | 41.1 | 120.5 | 20.9 | 3.6 |
| Nutrient management in greengram | ||||||
| P1 | 17.3 | 154.4 | 44.3 | 110.1 | 22.1 | 4.8 |
| P2 | 17.3 | 134.4 | 42.1 | 92.3 | 21.7 | 4.4 |
| P3 | 17.3 | 134.4 | 46.1 | 88.3 | 22.8 | 5.5 |
For treatment details, Table 2 may be referred.