The Scientific World Journal / 2014 / Article / Tab 1 / Review Article
Soil Physicochemical and Biological Properties of Paddy-Upland Rotation: A Review Table 1 Changes in soil fertilizer before and after experiment under different land utilizing types.
Reference
Crop rotation Before experiment After experiment Soil depth (cm) SOC (g kg−1 ) Total
(g kg−1 ) Total
(g kg−1 ) Available
(mg kg−1 ) Soil depth (cm) SOC (g kg−1 ) Total
(g kg−1 ) Total
(g kg−1 ) Available
(mg kg−1 ) [14 ] Rice—fallow
0–20
13.4
1.74
0.75
7.5 0–10 19.94 2.10 1.07 9.40 10–20 20.47 2.14 0.65 11.10 Rice—wheat 0–10 18.60 1.82 0.59 20.70 10–20 17.60 1.78 0.89 19.50 [19 ] Rice—fallow
15.6
2.53
0.62
/ 0–10 12.53 2.46 0.53
/ 10–20 12.88 2.36 0.47 Rice—rye grass 0–20 14.8 2.50 0.63 / 0–10 12.35 2.67 0.67 10–20 10.79 2.48 0.54 Rice—Chinese milk vetch 16.9 2.46 0.66 / 0–10 14.97 2.92 0.59 10–20 12.41 2.61 0.49 [20 ] Rice—wheat
0–15 / 1.35 / 8.5 0–15 / 1.40 / 11.40 [39 ] 3.6 / / 10.0 0–15 4.10 / / 6.40 [42 ] 3.2 / / 11.8 0–15 2.90 / / 16.10 [43 ] 5.3 / / / 0–15 3.75 / / / [44 ] Rice—wheat
0–20
12.3
1.70
/
5.2 0–5 17.0 1.80
/ 8.25 5–12 16.30 1.56 6.83 12–24 11.0 1.05 1.44 [45 ] Fallow
0–15
11.4
1.28
/
/ 0–5 32.31 2.89
/
/ 5–15 16.42 1.61 Rice—wheat 0–5 16.36 1.74 5–15 9.92 1.17 [46 ] Wheat—maize
0–20
5.4
0.41
/
8.3
0–20 6.50 0.66
/ 22.10 6.70 0.71 25.20 [47 ] Soybean—maize
0–15
5.4
0.45
/
/
0–15 6.80 1.25
/
/ Centro—maize 6.43 0.67 Cowpea—maize 4.86 0.47 Fallow—maize 5.07 0.53
The data in the table are obtained from field experiments using traditional tillage method and cultivation techniques without any application of organic fertilizers or crop straws. A part of SOC data is derived from the conversion of SOM (SOM = 1.724 * SOC, SOC: soil organic carbon; SOM: soil organic matter).