]*>","")" /> Effect of Period of Topdressing Nitrogenous Fertilizer on Regulation of Yield and Character of High - Quality Wheat
Xinjiang Agricultural Sciences

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Effect of Period of Topdressing Nitrogenous Fertilizer on Regulation of Yield and Character of High - Quality Wheat

  • Received:2007-06-25 Revised:2007-06-25 Online:2007-06-25 Published:2007-06-25

追氮时期对优质小麦产量和品质的调节效应

雷钧杰;赛力汗   

  1. 新疆农科院粮作所,乌鲁木齐,830091





摘要： 以中筋小麦新冬24号为材料,研究了不同时期施氮对小麦产量和品质的影响.结果表明,在总施氮量相等,基肥和追肥各占20;和80;的情况下,小麦产量随追肥时期和追肥方法的不同而有异.在春季一次性追施氮肥中,拔节期追施产量最高,扬花期次之,孕穗期最小;在拔节期追施氮肥情况下,扬花期比孕穗期再追施一次氮肥产量要高.蛋白质含量、湿面筋含量有随追肥时期的推迟而提高的趋势.面团形成时间、面团稳定时间、评价值、面团最大拉伸阻力、拉伸曲线面积有随追肥时期的推迟而降低的趋势.拔节期是实现中筋小麦高产与优质相协调的适宜追氮时期.