Cover crops | Zinc levels (mg·kg−1) | Average | |||
0 | 10 | 20 | 40 | ||
1. Sunn hemp | 47.88c | 372.84a | 300.13bc | 443.61ab | 291.12bc |
2.Smooth crotalaria | 12.37d | 149.09cd | 225.20cd | 165.10cd | 137.94d |
3. Showy crotalaria | 17.30d | 170.21cd | 217.85cd | 206.84c | 153.05d |
4. Calopo | 7.10d | 49.07d | 48.07d | 61.49d | 41.43e |
5. Pueraria | 8.32d | 59.25d | 77.29d | 86.74cd | 57.90e |
6. Pigeonpea | 21.74d | 103.80cd | 201.91cd | 175.34cd | 125.69d |
7. Lablab | 63.56bc | 461.01a | 485.60ab | 360.68b | 342.71ab |
8. Black velvet bean | 78.89ab | 330.04ab | 590.82a | 497.18a | 374.23a |
9. Gray velvet bean | 45.80c | 325.91ab | 422.32ab | 201.33c | 248.84c |
10. Jack bean | 87.74a | 229.45bc | 487.63ab | 546.13a | 337.73ab |
Average | 39.07c | 225.06b | 305.68a | 274.44a | 211.06 |
F-Test | |||||
Zn levels (Zn) | ** | ||||
Cover crops (C) | ** | ||||
Zn × C | ** | ||||
CV Zn (%) | 25.84 | ||||
CV C (%) | 21.84 |