Table 5. The fractional distribution of organic P fractions as influenced by cropping systems.
|
Cropping Systems |
Organic P fractions | Fractional distribution | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| L-Po | ML-Po | FA-Po | HA-Po | NL-Po | L-Po | ML-Po | FA-Po | HA-Po | NL-Po | |
| mg kg-1 | % | |||||||||
| Vegetable-based | 133.30 | 142.31 | 235.75 | 171.88 | 198.24 | 5.78 | 6.17 | 10.23 | 7.46 | 8.60 |
| Fruit-based | 125.45 | 139.66 | 234.67 | 173.10 | 188.92 | 5.61 | 6.24 | 10.49 | 7.74 | 8.44 |
| Rice-based | 81.09 | 116.02 | 183.05 | 149.16 | 135.87 | 3.90 | 5.58 | 8.80 | 7.17 | 6.53 |
| Maize-based | 86.65 | 121.57 | 201.28 | 143.64 | 183.03 | 4.01 | 5.63 | 9.32 | 6.65 | 8.47 |
Min., Minimum; Max., Maximum; L-Po, Labile organic P; ML-Po, Moderately labile organic P; FA-Po, Fluvic acid organic P; HA-Po, Humic acid organic P; NL-Po, Non-labile organic P