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Effects of supplementary irrigation, nitrogen fertilizer and straw mulching on the growth and yield of winter wheat
Author(s): 
Pages: 130-132
Year: Issue:  1
Journal: CHINESE JOURNAL OF ECO-AGRICULTURE

Keyword:  补充灌溉N肥秸秆覆盖冬小麦根系产量;
Abstract: 大田试验研究补充灌水、施N肥与秸秆覆盖对冬小麦根系和地上部生长、产量及其构成因子的影响结果表明,施N肥对冬小麦生长发育和产量的效应最明显,单独覆盖秸秆或补充灌水基本无效甚至出现副作用.施用N肥和秸秆覆盖可促进冬小麦根系发育和地上部生物量累积.肥料供应充足时覆盖秸秆对冬小麦根系的作用与水分状况有关,土壤水分胁迫下秸秆覆盖效果不明显,此时施用N肥甚至出现一定负效应.水分充足与否,施N肥和秸秆覆盖均对冬小麦产量的形成有一定协同效应,补充灌溉与施用N肥和秸秆覆盖配合处理小麦产量最高.
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