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与7500kg/hm~2小麦相比较,9000kg/hm~2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.
Compared with 7500kg / hm ~ 2 wheat, the nitrogen uptake and nitrogen productivity of 9000kg / hm ~ 2 wheat significantly increased, and the nitrogen absorption intensity significantly increased after flowering. The nitrogen allocation increased but the allocation proportion decreased at flowering stage. Nitrogen distribution and distribution proportion increased in root system. Nitrogen distribution and distribution proportion increased in mature stage. Nitrogen accumulation in vegetative organs increased after flowering but the difference in translocation rate was not significant. Grain quality improved.