山东省主要土类高产农田的微量元素及其与理化指标的相关性研究  

Contents of Available Microelements and Its Correlation with Other Physico-Chemical Indices of Main Type Soils in Shangdong Province

作　　者：孟庆华[1] 李根英 

机构地区：[1]山东棉花研究中心,济南250100 [2]山东省农业科学研究院作物研究所,济南250100

出　　处：《土壤》2008年第4期622-625,共4页Soils

基　　金：山东省财政支持重点农业科技成果推广项目(SDGP2003-54-B)资助

摘　　要：研究了山东省3大土类2个产量水平土壤表层的5种主要微量元素(Zn、Fe、Mn、Cu、B)含量及其与土壤主要理化指标的相关性。结果表明:不同土类的微量元素含量有明显差异,其特征是棕壤严重缺B,富含Fe和Mn。高产农田的有效Fe含量为13.10mg/kg,显著高于中低产田;有效Mn、有效Zn、有效Cu和有效B的含量分别为16.5、1.63、1.40、0.92mg/kg,也高于中低产田,但差异不显著。高产农田缺Mn、轻缺Zn比例分别为9%和33%,略大于中低产田,而缺B比例为28%,则略低于中低产田,其他微量元素不缺。In this paper the contents of five microelements （Zn, Fe, Mn, Cu, B） and their relationship with other physico-chemical indices of three type soils at two yield-levels in Shandong Province were studied. Results showed that concentrations of five microelements were significantly different among different types of soils. In brown soil, B was deficient but Fe and Mn were sufficient. In soils studied available Fe content of high-yield fields was significantly higher than low-yield fields. The insufficient percentages of available Mn, Zn and B were 9%, 33% and 28% in high-yield fields, respectively.

关 键 词：土壤 微量元素 影响因素 

分 类 号：S153.61[农业科学—土壤学]