Table 4 Effects of crop residue incorporation and K fertilization on soil WIN/TN ratio (%)

Control

2.58 ± 0.14a

6.22 ± 0.36a

4.93 ± 0.15a

3.65 ± 0.15a

2.90 ± 0.16a

5.49 ± 0.22a

4.82 ± 0.23a

3.89 ± 0.14a

W0C1

2.24 ± 0.10bc

5.88 ± 0.27a

4.82 ± 0.21a

3.47 ± 0.23a

2.56 ± 0.15b

5.39 ± 0.21a

4.66 ± 0.22ab

3.72 ± 0.15a

W1C0

2.41 ± 0.17ab

5.09 ± 0.21b

4.24 ± 0.18b

3.03 ± 0.11b

2.57 ± 0.13b

4.72 ± 0.17b

4.06 ± 0.17c

3.31 ± 0.10b

W1C1

2.02 ± 0.12c

4.75 ± 0.25b

4.03 ± 0.18b

2.89 ± 0.12b

2.30 ± 0.09c

4.35 ± 0.22b

3.96 ± 0.18c

3.35 ± 0.15b

K150

2.40 ± 0.16ab

5.95 ± 0.34a

4.93 ± 0.29a

3.63 ± 0.18a

2.61 ± 0.05b

5.39 ± 0.29a

4.45 ± 0.21b

3.76 ± 0.21a

K300

2.28 ± 0.13bc

6.32 ± 0.24a

4.94 ± 0.17a

3.78 ± 0.18a

2.71 ± 0.18ab

5.50 ± 0.30a

4.59 ± 0.13ab

3.83 ± 0.11a

F value

5.25**

15.17**

11.84**

13.94**

6.55**

12.24**

9.51**

8.60**