Short-Term Response of Soil Organic Carbon Indices to Different Farming Strategies and Crop Rotation Systems in a Semiarid Warm Region
Table 2
Initial and final values of total SOC, labile-SOC, and non-labile-SOC (mean ± standard deviation) under three farming strategies and four crop rotation systems.
Treatment
Time after the implementation of the experimental treatments
TSOC (g·kg−1)
Labile-SOC (g·kg−1)
Non-labile-SOC (g·kg−1)
Before starting experiment
0
4.5
1.74
2.77
Farming strategy
SIF no-CR
24 months
4.79 ± 0.02
1.8 ± 0.007
2.95 ± 0.02
SOF_30% CR
24 months
5.64 ± 0.07
2 ± 0.02
3.5 ± 0.07
SOF_15% CR
24 months
5.1 ± 0.07
1.87 ± 0.01
3.29 ± 0.07
Crop rotation system
Mung bean-wheat
24 months
5.8 ± 0.06
2.11 ± 0.01
3.69 ± 0.05
Corn-wheat
24 months
5.18 ± 0.06
1.92 ± 0.01
3.2 ± 0.07
Sesame-wheat
24 months
5.23 ± 0.06
1.9 ± 0.01
3.27 ± 0.05
Fallow-wheat
24 months
4.69 ± 0.03
1.77 ± 0.009
2.91 ± 0.05
Each value is the average of three values from three replicates.