%0 Journal Article
%T Effect of different border lengths on the irrigation homogeneity and soil nitrat e-N distribution on wheat field<br>不同灌溉畦长对麦田灌水均匀度与土壤硝态氮分布的影响
%A CUI Zhen-Ling
%A CHEN Xin -Ping
%A ZHANG Fu-Suo
%A SHI Li-Wei
%A LI Jun-Liang
%A <br>崔振岭
%A 陈新平
%A 张福锁
%A 石立委
%A 李俊 良
%J 中国生态农业学报
%D 2006
%I 
%X The effect of different border lengths on the irrigation quantity,irrigation homogeneity and soil nitrate-N distribution was studied.The results show that the irrigation amounts in the longer border(180m) and shorter border(90m) are 132mm and 102mm,respectively.And the spatial variabilities of water and N are enlarged by irrigation in the longer border.Compared to the shorter border,44mm irrigation water and 20kg/hm~2 N are lost in the longer border.Under conventional irrigation and N fertilization management condition,the spatial variabilities in the water and N do not affect the winter wheat grain yield because of excessive water and N input.Shortening the length of border is the firstline measure if popularizing the optimized production system with N fertilizer and water.
%K Border length
%K Irrigation homogeneity
%K Nitrate-N distribution<br>畦长
%K 灌水均匀度
%K NO-3-N分布
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=1A8B5357F0EF07B8&jid=AB3ABF502E2E1FF39F0E3B80164C9031&aid=59C419767AB3A7D1&yid=37904DC365DD7266&vid=F3583C8E78166B9E&iid=38B194292C032A66&sid=0D0D661F0B316AD5&eid=CD775AE9DDBD7B53&journal_id=1671-3990&journal_name=中国生态农业学报&referenced_num=0&reference_num=14