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Table 1 Physicochemical properties of biochar from different feedstocks

From: Effects of sweet pepper straw biochar on soil microbial communities and growth of continuously cropped cucumber

Biochar

MBAC

(%)

CEC

(cmol( +)·kg−1)

EC

(mS·cm−1)

TN

(mg·g−1)

TP

(mg·g−1)

TK

(mg·g−1)

TSB

89.04 ± 0.09c

35.62 ± 0.31b

3.22 ± 0.10b

19.00 ± 0.04b

4.80 ± 0.44b

25.30 ± 0.62b

SPSB

99.45 ± 0.29a

45.58 ± 0.42a

3.89 ± 0.80a

27.50 ± 0.34a

8.20 ± 0.53a

32.80 ± 0.53a

ESB

92.02 ± 0.17b

35.53 ± 0.28b

3.77 ± 0.07a

16.50 ± 0.03c

7.80 ± 0.26a

17.70 ± 0.56c

  1. MBAC Methylene blue adsorption capacity, CEC Cation exchange capacity, EC Electrical conductivity, TN Total nitrogen content, TP Total phosphorus content, TK Total potassium content. The significant differences are determined by the Tukey test, with different lowercase letters indicating significant differences between groups (P < 0.05)