%0 Journal Article
%T Characters of untrient cycles and ways for regulating their balance in south Jiangsu Province<br>苏南地区农田养分循环特征及平衡调控途径
%A Chen Xin
%A Li Pingping
%A Zhang Xigu
%A <br>陈 欣
%A 李萍萍
%A 章熙谷
%J 中国生态农业学报
%D 1997
%I 
%X The dynamics of farmland untrient cycles and balance in the southern part of Jiangsu Province were analysed based on macro-calculation and field tests. The results show that the main nutrient input is changing from organic fertilizer to inorganic fertilizer;farmland internal cycling is being weakened;Nbalance is changing from deficiency to surplus,P from deficiency to equilibrium, while K is becoming more and more deficient. So dnhancing P and K input and limiting N input as well as increasing the return of organic matter to farmland by mechanization are important ways to regulate farmland nutrient balance in this region.
%K Farmland nutrient balance
%K Balance regulation<br>农田养分循环
%K 平衡调控
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=1A8B5357F0EF07B8&jid=AB3ABF502E2E1FF39F0E3B80164C9031&aid=01AA2BF604A07F042D30F20A1EC6DC31&yid=5370399DC954B911&vid=94C357A881DFC066&iid=38B194292C032A66&sid=F3090AE9B60B7ED1&eid=F3583C8E78166B9E&journal_id=1671-3990&journal_name=中国生态农业学报&referenced_num=0&reference_num=0