%0 Journal Article
%T Effect of soil water and fertilizer on soybean yield on loess slopeland<br>黄绵土坡耕地大豆的水肥产量效应
%A CHEN Hongsong
%A SHAO Ming''''an
%A ZHANG Xingchang
%A <br>陈洪松
%A 邵明安
%A 张兴昌
%J 应用生态学报
%D 2003
%I 
%X Studies on the effect of soil water and fertilizer on soybean yield on loess slope farmland showed that soybean yield (Y) increased linearly with the increase of water use efficiency (WUE). Soybean yield and WUE increase with the increase of P fertilizer when P fertilizer was applied alone, but increased firstly and then decreased with the increase of N fertilizer when N fertilizer was applied alone. Therefore, N fertilizer should be applied with P fertilizer. Compared to no fertilizer, fertilizer could significantly increase soybean yield and WUE by 86.76%-470.16% and 69.64%-438.47%, respectively. A combined application of N and P fertilizers could increase more soybean yield and WUE than applied each of them alone, and the rational ratio of N and P (P2O5) was 1.3:1.
%K Slopeland
%K Effect of soil water and fertilizer
%K Water use efficiency
%K Loess soil<br>黄绵土
%K 坡耕地
%K 大豆
%K 水肥效应
%K 水分利用效率
%K 产量
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=403831A3D8E3DBEC&yid=D43C4A19B2EE3C0A&vid=F3583C8E78166B9E&iid=0B39A22176CE99FB&sid=CC0ECB9C52F1B85F&eid=797D49279EA93BC4&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=5&reference_num=9