Table 4 Soil basal characteristics in 0–15 cm soil layer in 1981.

From: Substituting chemical P fertilizer with organic manure: effects on double-rice yield, phosphorus use efficiency and balance in subtropical China

Characteristics

pH

 

6.6

Bulk density

g cm3

1.12

Soil organic carbon

g kg−1

19.9

Total N

g kg−1

2.05

Total P

g kg−1

0.66

Total K

g kg−1

14.1

Alkali-hydrolyzale N

mg kg−1

151

Olsen-P

mg kg−1

10.2

Exchangeable K

mg kg−1

62.3

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