Table 1 Effects of biochar and varieties on the chemical properties (mg kg⁻¹) in the rhizosphere soil of sugarcane field

 ROC22

6.77 ± 0.33^a

191.0 ± 6.2^a

170.8 ± 14.5^a

11.4 ± 0.8^a

46.2 ± 1.0^a

 Z9

6.64 ± 0.49^b

182.1 ± 26.2^a

180.3 ± 7.7^a

9.52 ± 0.7^a

45.5 ± 1.9^a

Biochar (B)

 B0

6.34 ± 0.06^c

160.2 ± 18^c

143.5 ± 20.6^b

9.8 ± 1.7^a

46.3 ± 3.4^a

 B1

6.84 ± 0.01^b

184.8 ± 16.8^b

194.6 ± 26.1^a

11.8 ± 1.5^a

44.1 ± 1.9^a

 B2

6.95 ± 0.02^a

214.6 ± 28.6^a

188.6 ± 16.1^a

9.71 ± 1.0^a

47.3 ± 2.0^a

 V

**

ns

ns

ns

ns

 B

***

***

**

ns

ns

 V × B

***

***

*

ns

ns