Treatments

Head length, cm

Head diameter, cm

No of wrapper leaves

Average head weight, kg

Head yield, ton·h⁻¹

1^st

2^nd

1^st

2^nd

1^st

2^nd

1^st

2^nd

1^st

2^nd

Compost soil addition

Vermicompost (0.5 ton·fed⁻¹)

21.48a

21.69a

26.54a

26.82a

62.25a

62.00a

2.38a

2.41a

87.46a

88.75a

Plant compost (5.0 ton·fed⁻¹)

20.69b

20.97b

25.03b

25.37b

57.67b

54.75b

2.27b

2.30b

83.44b

84.64b

Control (without addition)

18.69c

18.94c

21.26c

21.59c

44.17c

45.33c

1.89c

1.92c

69.52c

70.75c

LSD at 5%

0.16

0.31

0.04

0.04

3.61

10.24

0.02

0.04

0.89

1.56

Gypsium soil addition

Check treatment

19.62b

19.87b

23.04b

23.35b

50.83b

48.28b

2.10b

2.13b

77.14b

78.26b

Gypsium (GR)

20.95a

21.20a

25.52a

25.84a

58.56a

59.78a

2.26a

2.30a

83.15a

84.50a

LSD at 5%

0.13

0.12

0.34

0.34

0.45

6.77

0.02

0.03

0.59

1.08

Cobalt foliar application

Check treatment

20.07b

20.32b

23.90b

24.21b

53.33b

51.28a

2.15b

2.19b

79.14b

80.41b

Cobalt (10.0 mg Co L⁻¹)

20.50a

20.75a

24.65a

24.98a

56.06a

56.78a

2.21a

2.24a

81.14a

82.35a

LSD at 5%

0.26

0.22

0.26

0.26

1.70

n.s

0.02

0.05

0.82

1.78

Interaction

Vermicompost

Check treatment

Check treatment

20.50ef

20.69ef

24.68f

24.93e

57.33cd

54.33a-d

2.27d

2.30de

83.54d

84.52de

Cobalt

20.89de

21.09de

25.43e

25.68d

59.33c

5abc9.67

2.31cd

2.35cde

85.01cd

86.48cde

Gypsium

Check treatment

22.05ab

22.28ab

27.64b

28.00b

64.67ab

65.3ab3

2.44a

2.48ab

89.79a

91.26ab

Cobalt

22.49a

22.70a

28.40a

28.69a

67.67a

68.67a

2.49a

2.52a

91.51a

92.74a

Plant compost

Check treatment

Check treatment

19.70gh

19.96gh

23.15h

23.43g

52.67e

37.67e

2.14f

2.17f

78.75f

79.86f

Cobalt

20.10fg

20.41fg

23.88g

24.19f

53.67de

54.33a-d

2.21e

2.24ef

81.33e

82.31ef

Gypsium

Check treatment

21.28cd

21.59cd

26.17d

26.48c

60.67bc

62.33abc

2.34bc

2.38bcd

86.11bc

87.46bcd

Cobalt

21.68bc

21.94bc

26.93c

27.36b

63.67ab

64.67ab

2.38b

2.42abc

87.58b

88.93abc

Control (without addition)

Check treatment

Check treatment

18.05k

18.31k

20.17l

20.57j

39.67g

41.00de

1.79j

1.82i

65.75j

66.98i

Cobalt

18.51jk

18.76jk

20.90k

21.28i

42.33fg

42.67de

1.86i

1.89hi

68.45i

69.43hi

Gypsium

Check treatment

18.87ij

19.09ij

21.60j

21.84i

45.00f

47.00cde

1.93h

1.97gh

70.90h

72.38gh

Cobalt

19.33gh

19.62hi

22.36i

22.67h

49.67e

50.67b-e

1.98g

2.02g

72.99g

74.22g

LSD at 5%

0.65

0.54

0.64

0.64

4.16

15.36

0.06

0.12

2.02

4.37