Table 5 Long-term impact of mode, level of FYM, and fertilizer N application on soil enzyme activity at different growth stages of wheat.

From: Long-term application of FYM and fertilizer N improve soil fertility and enzyme activity in 51st wheat cycle under pearl millet-wheat

Treatment

Season/level of input

Dehydrogenase (DHA: µg TPF g−1 24 h−1)

β-Glucosidase activity (µg PNP g−1 h−1)

Urease activity (µg NH4+–N g−1 h−1)

Stage 1

Stage 2

Stage 3

Stage 4

Stage 5

Stage 1

Stage 2

Stage 3

Stage 4

Stage 5

Stage 1

Stage 2

Stage 3

Stage 4

Stage 5

Mode of FYM application

Rabi

21.8

122.5

171.5

142.2

73.9

92.5

159.5

244.8

360.9

325.2

21.4

17.5

66.3

45.3

28.5

Kharif

22.4

112.6

159.6

125.4

70.4

96.9

153.1

221.3

332.3

305.6

22.1

17.1

63.9

43.3

26.4

Rabi and Kharif: both seasons

24.7

149.3

212.2

172.0

81.6

104.0

178.2

272.8

387.0

360.5

24.0

19.7

71.5

55.2

33.5

CD (p = 0.05)

NS

8.3

13.9

9.2

6.5

6.5

8.4

17.8

5.6

8.4

2.1

1.8

2.7

4.4

4.3

Level of FYM (t ha−1)

FYM0

17.4

64.5

97.6

73.8

37.7

57.7

83.8

106.3

169.2

146.1

15.1

13.0

31.8

22.8

15.2

FYM5

23.0

127.8

186.7

143.9

70.8

102.5

168.8

265.0

399.5

371.6

22.7

17.6

71.5

47.4

28.5

FYM10

24.5

145.7

207.9

166.0

92.8

111.4

192.8

295.3

422.6

390.0

24.4

19.9

77.8

56.1

34.2

FYM15

26.9

174.6

232.3

202.6

100.0

119.5

209.0

318.7

449.0

414.0

27.7

21.9

87.9

65.5

40.0

CD (p = 0.05)

2.8

9.6

16.0

10.6

7.5

7.5

9.7

20.6

6.4

9.7

2.5

2.1

3.2

5.0

5.0

Level of fertilizer N (kg ha−1)

N0

21.8

115.3

162.3

133.3

68.7

91.4

149.3

228.7

343.3

315.6

21.1

16.8

61.7

42.0

26.0

N120

24.2

141.0

199.9

159.8

81.9

104.2

177.9

263.9

376.8

345.3

23.9

19.4

72.8

53.9

33.0

CD (p = 0.05)

1.8

6.5

15.1

7.3

5.7

7.0

4.7

14.0

7.1

4.6

1.7

1.8

2.8

3.7

3.3

  1. The subscript figures in treatment indicate the dose of FYM in t ha−1 and the dose of fertilizer nitrogen in kg ha−1.
Back to article page