The influence of a year-round tillage and residue management model on soil N fractions in a wheat-maize cropping system in central China
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Update policy: https://doi.org/10.1007/SPRINGER_CROSSMARK_POLICY
Text and Data Mining valid from 2019-03-18
3 December 2018
6 March 2019
18 March 2019
The authors declare no competing interests.