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Comparison of soil phosphorus fractions after 37 years of wheat production management practices in a semi-arid climate

颁布单位：[University of the Free State] | 颁布时间：2019 | 实施时间：2019 | 学科分类：[["Phosphorus, fractions","Straw, disposal","Tillage, method","Weed, control","Wheat, residues","Dissertation, (M.Sc., (Soil, Science))--University, of, the, Free, State,, 2019"]]

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