Effects of Layered Fertilization on Yield and Nitrogen Effect of Winter Wheat
Xia Guangli
Bi Jun
Shi Guifang
Zhu Guoliang
Mu Xiaoling
Dong Hao
Tan Deshui
Abstract：The high -yielding and mid -gluten winter wheat cultivar Jimai 22 was used as material to study the effects of nitrogen fertilization on its growth,development and yield.Two kinds of nitrogen fertilizer (general urea and humic acid urea)and two fertilization methods (single and layered application at a certain ratio)were designed in the experiment.The results showed that compared with the traditional fertilization treatment (OPT),the layered fertilization treatments (OPT1 and OPT2)increased the grain yield by 5.3%and 4.4%.The difference of increased grain yield was mainly caused by the difference of effective spike num-ber and kernel number per spike.The OPT1 and OPT2 also increased the dry matter accumulation and nitro-gen content at every stage,and the nitrogen use efficiency were increased by 6.4 and 4.2 percentage points respectively.
Keywords：Layered fertilizationWinter wheatGrain yieldNitrogen effect
Publication Date：2016-04-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 72-74,78 )