Cover crops | Zinc levels (mg·kg−1) | Average | |||
0 | 10 | 20 | 40 | ||
1. Sunn hemp | 15.86ab | 110.54b | 118.08b | 160.04b | 101.13b |
2.Smooth crotalaria | 18.52a | 139.51a | 199.01a | 234.53a | 147.89a |
3. Showy crotalaria | 15.88ab | 136.74ab | 176.24a | 215.34a | 136.05a |
4. Calopo | 18.19a | 58.85cd | 60.62e | 65.12e | 50.69e |
5. Pueraria | 14.62ab | 75.82c | 91.44bcd | 115.65c | 74.38c |
6. Pigeonpea | 18.27a | 64.97cd | 98.84bc | 87.18cde | 67.32cd |
7. Lablab | 18.35a | 59.35cd | 60.80de | 63.25e | 50.44e |
8. Black velvet bean | 15.07ab | 51.33cde | 77.80cde | 75.12de | 54.83e |
9. Gray velvet bean | 15.06ab | 42.48de | 73.03cde | 109.57cd | 60.03de |
10. Jack bean | 11.05b | 24.56e | 48.87e | 58.91e | 35.84f |
Average | 16.08d | 76.42c | 100.47b | 118.47a | 77.86 |
F-Test | |||||
Zn levels (Zn) | ** | ||||
Cover crops (C) | ** | ||||
Zn × C | ** | ||||
CV Zn (%) | 14.58 | ||||
CV C (%) | 11.74 |