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