Effects of Water and Nitrogen Application on Nitrogen Uptake and Distribution in Wheat

doi:10.3321/j.issn:1000-7091.2002.01.015

Abstract

Abstract: The results of experiments showed the yield of all treatments hacl no significant differences.The ear per ha increased under 4-time irrigation,but grain weight per 1000 decreased seriously.Thewheat irrigated Mime absorbed more N than that under 4-time irriganon which had the same N application,yet NPE decreased.With more w titer supply,the N distrihuted in vegetative organs was more than that in grain. After anthesis the N proportions transferred from various vegetable organs to the grains were ordered as leaf>stem= ear axis and grain husk>leaf sheath>root,among them leaf got the head of the others. Under Mime irrigation, some N rates should be used as base N, and the others were used as dressing N.However economical nitrogen rates might all be used as base N as well.

Key words: Water, Nitrogen, Wheat, Uptake and distribution

CLC Number:

Li Shijuan, Zhou Dianxi, Zhu Yeping, Li Jianmin, Lan Linwang. Effects of Water and Nitrogen Application on Nitrogen Uptake and Distribution in Wheat[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2002, 17(1): 69-75. doi: 10.3321/j.issn:1000-7091.2002.01.015.

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