Effect of Different Nitrogen Application on Growth and Nitrogen Metabolic Indices of Spring Wheat

doi:10.3321/j.issn:1000-7091.2006.z2.010

Abstract

Abstract: Effect of Different Nitrogen application on early and middle Growth of Spring Wheat by pot cultivation.The results showed that:nitrogenous fertilizer could promote the growth of spring wheat.Plant height,stem width,tiller number,dry weight of stem and leaf increased 5% to 100% compared with the control treatment,nevertheless it doesn't show a linear relationship between the increase of wheat and the nitrogenous fertilizer applied amount all the time.In tillering and elongating stages,compared with control treatment,applying nitrogen increases the total N content in stem and leaf of wheat.The total P,K content increased first,and then with the increasing of N applied it presented a decreasing trend in stem and leaf.In addition,both of NO₃^-_N content in stem radix and leaf chlorophyll content show a distinct positive correlation with N applied amount,so they can reflect the N supply level of soil.

Key words: Spring Wheat, Nitrogen, Tillering stage, Elongating stage

CLC Number:

S143.1

ZHANG Dian-shun, DONG Xiang-yun, LIU Shu-qing. Effect of Different Nitrogen Application on Growth and Nitrogen Metabolic Indices of Spring Wheat[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2006, 21(S2): 42-45. doi: 10.3321/j.issn:1000-7091.2006.z2.010.

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