%0 Journal Article
%T Profile characteristics of available nutrients and heavy metal concent rations in greenhouse soils<br>温室土壤剖面养分特征及重金属含量演变趋势研究
%A LI Jian-Yun
%A HOU Yan -Lin
%A WANG Xin-Min
%A DONG Xian-Z hong
%A <br>李见云
%A 侯彦林
%A 王新民
%A 董县中
%J 中国生态农业学报
%D 2006
%I 
%X The profile characteristics of available N,P,K and heavy metal concentrations in greenhouse soils of Shenyang suburb were studied.The results show that with the planting years going by,the available N and P have a significant increase,have a significant positive correlation with the planting years and the available K also has increased for some extent,but not so high.The contents of heavy metals copper,zinc,cadmium and lead in the protected soil of the greenhouse are higher than those of field,and with the prolongation of planting years,their concentrations are also going up,but they do not exceed the quality criterion of soil environment.
%K Greenhouse
%K Available nutrient
%K Heavy metal<br>温室
%K 速效养分
%K 重金属
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=1A8B5357F0EF07B8&jid=AB3ABF502E2E1FF39F0E3B80164C9031&aid=35AC44B0DB63BB45&yid=37904DC365DD7266&vid=F3583C8E78166B9E&iid=38B194292C032A66&sid=BE33CC7147FEFCA4&eid=94E7F66E6C42FA23&journal_id=1671-3990&journal_name=中国生态农业学报&referenced_num=4&reference_num=10