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Chemical and Biological Technologies in Agriculture

Table 1 Physicochemical properties of the representative types of soils studied

From: Molecular changes of ferric oxide bound soil humus during the decomposition of maize straw

Soil types

SOC (g kg−1)

Fe ad (g kg−1)

Total N (g kg−1)

C/N

Clay (g kg−1)

CECb (Cmol kg−1)

pH (H2O)

WHCc (g kg−1)

TP

19.02

14.99

1.65

11.56

273.1

18.91

5.28

666

RP

21.79

15.95

1.89

11.54

198.0

8.83

4.61

708

PP

17.61

10.00

1.70

10.37

156.9

23.79

7.26

594

MS

17.88

15.05

1.74

10.29

97.0

14.01

7.33

573

  1. The soils used in this study were three replicates and mixed before incubation in order to keep the same type of soils in a similar condition. TP Tai-Lake plain soil; RP red earth paddy soil; PP purple paddy soil; MS marsh soil
  2. aFree ferric oxide
  3. bCation exchange capacity
  4. cWater holding capacity
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