Cover crops

Zinc levels (mg·kg⁻¹)

Average

0

10

20

40

1. Sunn hemp

11.33c

14.67e

11.33b

8.66d

11.50d

2. Smooth crotalaria

10.00c

13.00e

9.00b

7.00d

9.75d

3. Showy crotalaria

13.00c

12.66e

8.66b

7.00d

10.33d

4. Calopo

12.66c

21.00d

9.00b

8.33d

12.75d

5. Pueraria

8.33c

13.66e

15.33b

9.66d

11.75d

6. Pigeonpea

10.00c

12.66e

12.66b

8.00d

10.83d

7. Lablab

21.33b

30.66bc

34.00a

29.66ab

28.91b

8. Black velvet bean

34.33a

36.66ab

34.33a

31.00a

34.08a

9. Gray velvet bean

26.33b

39.33a

33.66a

20.66c

30.00b

10. Jack bean

21.66b

25.66cd

26.33a

24.33bc

24.50c

Average

16.90c

22.00a

19.43b

15.43c

F-Test

Zn levels (Zn)

**

Cover crops (C)

**

Zn × C

**

CV Zn (%)

14.84

CV C (%)

12.53