Residual effect of different summer cropping systems on yield of winter wheat and soil nitrate-N accumulation after harvest of wheat in Experiment 1.
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Note: Different letters represented significant differences between means of replicates (n = 3) at the 0.05% level within a column.Residual effect of different summer cropping systems on yield of winter wheat and soil nitrate-N accumulation after harvest of wheat in Experiment 1.
创建时间：
2015-12-03
