%0 Journal Article
%T Research methods to the ecological factors of crop canopy<br>农田作物层生态因子的研究方法
%A Dong Zhengguo
%A <br>董振国
%J 中国生态农业学报
%D 1995
%I 
%X Summarizing more than ten years field experiments and research results,the author presented some ideas on research contents,plot assignments for field measurement,instruments used and observation methods and etc.for the research on ecological factors of crop canopy.
%K Ecological factors of crop canopy
%K Research contents
%K Research methods<br>作物层生态因子
%K 研究内容
%K 研究方法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=1A8B5357F0EF07B8&jid=AB3ABF502E2E1FF39F0E3B80164C9031&aid=4C4AABC625E0A478F2A594EF0D913F1B&yid=BBCD5003575B2B5F&vid=38B194292C032A66&iid=E158A972A605785F&sid=318E4CC20AED4940&eid=11B4E5CC8CDD3201&journal_id=1671-3990&journal_name=中国生态农业学报&referenced_num=0&reference_num=0