摘要
本试验以高产小麦品种鲁原502为材料,研究氮磷配施条件下冬小麦磷素积累、分配及利用特性。结果表明,增加施氮量和施磷量均促进小麦各时期磷素积累量的提高。随着磷肥和氮肥施用量的增加,开花期和成熟期磷素在茎秆、叶片和穗(籽粒、穗轴和颖壳)的分配量增加。增加施磷量促进生产100 kg小麦籽粒需磷量提高,而施氮量对籽粒需磷量影响不大;增加施磷量造成磷素利用效率降低,而施氮量对磷素利用效率无明显影响。本研究表明,冬小麦施用N 240 kg/hm^2,P_2O_5100 kg/hm^2可作为黄淮麦区获得高产的施肥参考。
The high-yielding wheat cultivar Luyuan 502 was selected as the test material to study the effects of nitrogen application combined with phosphorus on phosphorus accumulation,distribution and utilization in winter wheat. The results showed that increasing application of nitrogen and phosphorus both promoted the phosphorus accumulation at various stages of wheat. With the increasing application of phosphorus and nitrogen fertilizer,the phosphorus distribution in stem,leaves and spike( including grain,spike axis and glume)increased at the anthesis and maturity stages. The phosphorus requirement of producing 100 kg grain was improved with the increasing of phosphorus fertilizer,while not significantly affected by nitrogen application. The phosphorus utilization efficiency( PUE) decreased with the increasing application of phosphorus,but not affected significantly by nitrogen application. It was shown that 240 kg/hm^2 nitrogen and 100 kg/hm^2 P_2O_5 were recommended for high yield of winter wheat in the Huang-Huai area.
出处
《山东农业科学》
2018年第2期83-86,共4页
Shandong Agricultural Sciences
基金
国家重点研发计划项目"小麦诱变育种技术创新与品种创制"(2016YFD0102101)
山东省现代农业产业技术体系小麦产业创新团队建设项目
山东省自主创新重大专项"超高产
优质
多抗小麦新品种选育课题"(2014GJJS0201-4-6)
山东省农业科学院重大科技成果培育计划项目(2014CGPY03)
关键词
氮磷配施
小麦
磷素积累
鲁原502
Nitrogen application combined with phosphorus
Wheat
Phosphorus utilization
