Figure 5 | Scientific Reports

Figure 5

From: The influence of a year-round tillage and residue management model on soil N fractions in a wheat-maize cropping system in central China

Figure 5

Soil Nitrogen (N) (A) and carbon (C) (B) stratification under the different tillage and crop residue management strategies. Different lower-case letters at the same soil depth indicate significant difference at the 5% level. ns represents no significant differences among the three treatments at the same soil depth. NT: no-tillage with straw removal for winter wheat and summer maize, NTS: no-tillage with straw mulching for winter wheat and summer maize, NPTS: no-tillage with straw mulching for summer maize and plow tillage with straw incorporation for winter wheat.

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