有机肥养分在农田中的生态效应分析  

Analysis on Ecological Effect of Organic Fertilizer Nutrients on Farmland

作　　者：白成云[1] 刘金城[1] 

机构地区：[1]山西省农业科学院土壤肥料研究所

出　　处：《山西农业科学》1999年第2期33-36,共4页Journal of Shanxi Agricultural Sciences

摘　　要：利用田间定位试验方法，研究了有机肥养分在农田中的生态效应，阐明了有机无机肥配施和有机肥在持续农业中的作用。证明有机肥是土壤钾的重要来源，施用有机肥对于缓解氮磷钾比例失衡有重要作用；有机无机肥配施，可以提高有机氮的利用率，有机氮的利用率可达１８０８％～１９３６％，减少损失率达１４２０％～１５７１％；有机无机肥配施比单施有机肥或单施化肥玉米产量都高。Field experiment was carried out to study ecological effect of organic fertilizer nutrients on farmland. The result showed that it plays important role in sustained agriculture to apply organic fertilizer and organic fertilizer with inorganic fertilizer. The application of organic fertilizer is necessary in supplying the resource of potassium of soils and alleviating the disequilibrium of N,P,K and increasing the use efficiency of organic nitrogen. The use efficiency of organic nitrogen is up to 18.08%～ 19 36 %. The organic nitrogen lose decreases 14.20%～15.71%. The yield in corn filed is higher with combinative application of organic and inorganic fertilizer than with single application.

关 键 词：有机肥 养分 生态效应 利用率 施肥 土壤养分 

分 类 号：S147.2[农业科学—肥料学] S158.23[农业科学—农业基础科学]