%0 Journal Article
%T Investigation and analysis on soil fertility of cultivated farmland in Hai''''an County,Jiangsu Province<br>江苏省海安县耕地土壤肥力定位调查与分析
%A CHEN Bin
%A JI Ying- Ming
%A JI Xun-Feng
%A WU Jian-Hua
%A XU Xue- Hong
%A <br>陈 斌
%A 季应明
%A 吉训凤
%A 巫建华
%A 许学宏
%J 中国生态农业学报
%D 2005
%I 
%X Nearly 1000 fixed positions were investigated and analyzed in Hai'an County,Jiangsu Province.The results show that the cultivated soil organic matter,total N,available P,available K increase by 9.8%,7.4%,190% and 18.3% respectively,higher than those in 1991,and by 41.3%,31%,245.2% and 18.6% respectively,higher than those in 1982.The soil physical and chemical properties are improved greatly.The evolution of soil fertility is related to the coordinate development in planting,breeding and processing,manuring of a great quantity of organic fertilizer,spreading of balanced fertilization technique,and optimizing of planting system and tillage mode in the county.
%K Soil fertility
%K Fixed position
%K Evolution<br>土壤肥力
%K 定位
%K 演变
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=1A8B5357F0EF07B8&jid=AB3ABF502E2E1FF39F0E3B80164C9031&aid=B736E6B6909E5598&yid=2DD7160C83D0ACED&vid=FC0714F8D2EB605D&iid=38B194292C032A66&sid=AA76E167F386B6B3&eid=80A07035DF96B0C4&journal_id=1671-3990&journal_name=中国生态农业学报&referenced_num=0&reference_num=2