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作 者 ：潘庆民;于振文;王月福;田奇卓

期 刊 ：作物学报 1999年 25卷 05期 页码：541-547

关键词：小麦；公顷产9000 kg；氮素；吸收分配；

Keywords:Wheat, 9000kg per hectare, Nitrogen, Uptake and distribution,

摘 要 ：与7500 kg/hm2小麦相比较，9000kg/hm2小麦氮素吸收量和氮素生产力显著提高，开花后吸氮强度显著提高；开花期叶片氮素分配量增加但分配比例降低，穗和根系的氮素分配量和分配比例均提高；成熟期籽粒的氮素分配量和分配比例均提高；开花后营养器官的氮素向籽粒转移量增加但转移率差异不显著；籽粒品质改善。

Abstract:The uptake and distribution of nitrogen in wheat cultivars/treatments with different yield potentials were studied comparatively. The results indicated that the nitrogen uptake amount，the nitrogen productivity and the nitrogen uptake intensity of cultivar/treatment with 9000 kg/h yield potential we

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