%0 Journal Article
%T Potassium balance in farmland in North China plain<br>华北平原农田生态系统钾平衡研究
%A Hu Chaobing
%A Tian Zhenrong
%A <br>胡朝炳
%A 田振荣
%J 中国生态农业学报
%D 1995
%I 
%X Most solis in North China Plain were developed on the alluvial deposite of Yellow River with high mineral potassium contents.So it is not necessary to apply potassic fertilizer to the low and medium production farmland.Otherwise,"Luxury Consumption"would ocurr. Then potassium balance studies in agroecosystem are especially necessary for crop production.Based on a three-year experiment K balace and K supplying capacity of the soils in North China Plain were analysed in this papers.
%K Agro-ecosystem
%K Potassium balance
%K Potassium supplying capacity<br>逐田生态系统
%K 钾平衡
%K 供钾能力
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=1A8B5357F0EF07B8&jid=AB3ABF502E2E1FF39F0E3B80164C9031&aid=C5B95AD8B9AFE696938B719AAB78DF45&yid=BBCD5003575B2B5F&vid=38B194292C032A66&iid=E158A972A605785F&sid=27746BCEEE58E9DC&eid=42425781F0B1C26E&journal_id=1671-3990&journal_name=中国生态农业学报&referenced_num=0&reference_num=0