%0 Journal Article
%T Effect of incorporating corn residues into soil on nitrogen transformation in soil-plant ecosystem<br>添加玉米残体对土壤-植物系统中氮素转化的影响
%A WANG Shuping
%A ZHOU Guangsheng
%A JIANG Yan
%A LIU Xiaoyi
%A <br>王淑平
%A 周广胜
%A 姜岩
%A 刘孝义
%J 应用生态学报
%D 2004
%I 
%X Appropriate field management of crop residues can help to enhance soil productivity and nutrient recycling, and to minimize greenhouse gas emission. In this paper, a 15N tracer pot experiment was installed to study the effect of incorporating corn stalk and stubble into black soil on the nitrogen transformation in soil-plant ecosystem. The results indicated that compared with single application of N fertilizer, incorporation of corn stalk and stubble could increase soil nitrogen content and enhance its availability, and increase soil microbial nitrogen content. It also promoted the transfer of nitrogen in corn into its kernel, so as to increase the nitrogen use efficiency. Simultaneously, it reduced the content of soil NO3(-)-N, and decreased the fertilizer nitrogen loss by 4.7-5.6%.
%K Corn residues
%K Nitrogen transformation
%K Soil microbial nitrogen
%K Nitric nitrogen
%K 15N tracer<br>玉米残体
%K 氮素转化
%K 土壤微生物氮
%K 硝态氮
%K 15N示踪
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=47AA8A6990C28582&yid=D0E58B75BFD8E51C&vid=23CCDDCD68FFCC2F&iid=38B194292C032A66&sid=78BF76CF5B7CB0F2&eid=30F3EEEA29E34EE7&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=4&reference_num=21