长期定位施肥对黑土磷酸酶活性的影响  

Effects of Long-Term Fertilization on Phosphase Activities in Black Soils

作　　者：刘耀鹏[1,2] 武志杰[1] 陈利军[1] 张丽莉[1] 史云峰[1,2] 

机构地区：[1]中国科学院沈阳应用生态研究所,辽宁沈阳110016 [2]中国科学院研究生院,北京100039

出　　处：《土壤通报》2010年第1期60-63,共4页Chinese Journal of Soil Science

基　　金：973项目肥料减施增效与农田可持续利用基础研究(课题编号2007CB109307)资助

摘　　要：对长期不同培肥制度下黑土磷酸酶活性进行研究。结果表明,中性磷酸单酯酶活性最高,磷酸二酯酶活性次之,磷酸三酯酶活性最低。不同施肥处理中性磷酸单酯酶活性顺序为:NPK>NK>M1+N2PK>秸秆+N3PK>CK>M2+N1PK。磷酸二酯酶活性顺序为:M1+N2PK>M2+N1PK>秸秆+N3PK>CK>NK>NPK。磷酸三酯酶活性各处理间无显著差异。Organic phosphorus turnover is regulated by phosphatase.As most of the organic P inputs to soil are phosphate diesters and monoesters,it therefore seems likely that phosphomonoesterase and phosphodiesterase activities regulate organic P turnover in black soils.A long-term experiment was set up in Gongzhuling Long-term Fertilization Station of Jilin Province to investigate application of six fertilization treatments on soil phosphase enzyme activities.Treatments included Control,NP,NPK,NPK＋M1（Farm yard manure）,NPK＋M2 and LH（out of cultue）.Results suggested that NP and NPK treatments contained high phosphomonoesterase activities,low phosphodiesterase activities,whereas the reverse was true in NPK＋M1 and NPK＋M2 treatments.

关 键 词：长期定位施肥 中性磷酸单酯酶 磷酸二酯酶 磷酸三酯酶 

分 类 号：S154.2[农业科学—土壤学]