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Table 10 The effects of different sequences of corn-soybean rotation on SOC(Mg/ha C) stocks at different depths

From: Crop rotation and the impact on soil carbon in the U.S. Corn Belt

  1. c is short for corn and s is short for soybean. The sequences indicate crop type c/s 2 years before - c/s 1 year before - c/s the year of SOC stocks measurement. sss is base group. Clustered standard errors at the area level arew displayed in parantheses
  2. *p<0.1
  3. **p<0.05
  4. ***p<0.01