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