Olsen法测定的土壤速效磷含量与土壤pH值的相关性研究  

Content of available phosphorus in soil determined by Olsen method and its correlation with soil pH

作　　者：王献华[1] 谢如林[2] 周柳强[2] 黄美福[2] 黄金生[2] 李伏生[1] 谭宏伟[2] 

机构地区：[1]广西大学农学院,南宁530005 [2]广西农业科学院土壤肥料研究所,南宁530007

出　　处：《广西农业科学》2008年第2期199-201,共3页Guangxi Agricultural Sciences

基　　金：广西自然科学基金项目(桂科自0640048、0728066);广西农业科学院科技发展基金(2004016、2006020)

摘　　要：通过对供试土壤调酸处理,获得17个不同pH值水平的土样,应用NaHCO3浸提剂提取速效磷,探讨速效磷的变化动态以及Olsen-P法测定广西酸性土壤的可行性,为测土配方施肥测定方法的标准化提供一定的依据。试验结果表明:从总体趋势上来看,Olsen法作为广西土壤速效磷测定方法可行的。After acid treatment, soil samples at different pH levels were taken to extract available phosphorus with NaHCO3 extraction agent. The results could expolore the dynamics of available phosphorus and the feasibility of Olsen-P determination to acidic soil in Guangxi and provide with a standardized basis for formula fertilization of soil testing methods. The results showed that in general, Olsen method is feasible for the determination to acidic soil in Guangxi.

关 键 词：速效磷 土壤PH OLSEN法 

分 类 号：S151.93[农业科学—土壤学]