%0 Journal Article
%T Effects of long-term fertilization on wheat yield on Loess Plateau<br>黄土高原塬区旱地长期施肥对小麦产量的影响
%A HAO Mingde
%A LAI Lu
%A WANG Gailing
%A DANG Tinghui
%A <br>郝明德
%A 来璐
%A 王改玲
%A 党廷辉
%J 应用生态学报
%D 2003
%I 
%X The effect of long-term fertilization on the yield of winter wheat was studied on the basis of 18-year located experiment on the Loess Plateau. The results showed that the winter wheat yield increased 418.1 kg.hm-2 under N fertilization, and the average increasing rate was different with precipitation. In average and rain rich year, the average increasing rate were 30.3% and 58.9%, respectively, but in drought year, the yield decreased, and its average decreasing rate was 13.9%. The winter wheat yield under P fertilizer increased in drought year, and decreased in average and rain rich year. The average increasing rate was 6.5% in drought year, and the average decreasing rate was 15.4% and 10.0%, respectively. The average increasing rate in M, NP, PM, NM and NPM was 82.8%, 127.8%, 18.9%, 144.4%, and 169.3%, respectively. In addition, precipitation affected the amount of spike, grains per spike, and weight of thousand-grains.
%K Dryland wheat
%K Long-term fertilization
%K Yields effect<br>旱地小麦
%K 长期施肥
%K 产量效应
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=B17EF9BE725DAE92&yid=D43C4A19B2EE3C0A&vid=F3583C8E78166B9E&iid=708DD6B15D2464E8&sid=27DC88857EA57257&eid=8E33296F097354F4&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=14&reference_num=20