Table 4 The effect of maize straw biochar on soil chemical properties under tomato production

0

4.63b

0.584a

3.00a

1.74a

0.15b

12.08ab

566.7b

142.4b

3.5

5.90a

0.120b

3.17a

1.84a

0.20ab

9.46ab

886.7a

259.2a

6.9

5.87a

0.119b

3.42ab

1.98ab

0.22ab

9.22ab

886.7a

286.8a

13.8

6.03a

0.142b

3.43ab

1.99ab

0.23a

8.85a

833.3ab

255.6a

27.6

6.37a

0.153b

3.88b

2.25b

0.15ab

15.75b

873.3a

261.2a

p-value

p < 0.001

p < 0.001

p < 0.01

p < 0.01

p < 0.05

p < 0.05

p < 0.05

p < 0.001