【摘要】 冬小麦生长发育后期 ,由于气候异常或干热风 ,使冬小麦高温逼熟千粒重大幅度下降 ,但较高的肥力水平及合理的施肥技术对稳定千粒重有十分明显的作用。实验结果表明 :土壤有机质含量高、增施钾肥、氮磷钾配施 ,后期补氮及后期喷施KH2 PO4 和叶面肥对于提高千粒重有着明显的作用更多还原

【Abstract】 In late growing stage, grain weight of winter wheat would drop by abnormal climate or dry sirocco. High fertility and rational fertilization could stable grain weight. The result of experiment indicated that high fertility, supplemental Nitrogen, fertilizing Potassium, combined N P K fertilization, spring application KH 2PO 4 and leaf fertilization all could improve grain weight.更多还原