牛粪对黑土土壤无机磷形态的影响  

Effect of Cow Dung on Morphological Characteristics of Inorganic Phosphorus in Black Soil

作　　者：史喜林[1] 李鹤[1] 秦治家 高云航[3] 娄玉杰[3] 刘淑霞[1] 

机构地区：[1]吉林农业大学资源与环境学院,吉林长春130118 [2]吉林省东辽县足民农业站,吉林东辽136615 [3]吉林农业大学动物科技学院,吉林长春130118

出　　处：《家畜生态学报》2014年第8期72-77,共6页Journal of Domestic Animal Ecology

基　　金：吉林省教育厅"十二五"科学技术研究项目(216-172);吉林省科技发展计划项目(20110202);吉林省科技引导计划项目(201205057);现代农业产业技术体系建设专项资金资助(nycytx-38)

摘　　要：采用盆栽试验研究牛粪对黑土土壤无机磷形态的影响,探讨黑土土壤无机磷形态的变化规律和供磷能力的变化,明确牛粪在提高土壤磷利用效率中的作用。结果表明,施用牛粪可增加土壤中不同形态磷的含量,随着牛粪用量的增加,土壤中不同形态磷的含量均有所增加。铝结合态磷酸盐(Al-P)和铁结合态磷酸盐(Fe-P)的增加幅度最大,闭蓄态磷酸盐(O-P)的增加幅度最小。施用牛粪可以改变各种无机磷占无机磷总量的比例顺序,由未施牛粪的Fe-P>钙结合态磷酸盐(Ca-p)>AL-P>O-P,到施用牛粪的Fe-P>AL-P>Ca-P>O-P;表层土壤各种形态磷的含量高于下层土壤,而相对含量是除了AL-P外,其余各形态磷的含量均是下层土壤的高。试验结果说明,施用牛粪可以使土壤中无机磷的形态向AL-P转化,增加黑土中对植物有效性高的无机磷的含量。Pot experiment was adopted to investigate the effects of cow dung on the black soil inorganic phosphorus forms, as well as the variation of black soil inorganic phosphorus forms and phosphorus supply capacity changes so as to detect the cow dung effect on improving the use efficiency of soil phosphorus. The results showed that the application of cow dung could increase the content of different forms of phosphorus in the soil, the more consumption of cow dung, the higher the different forms of phosphorus content in the soil. The maximum growth in AL-P and Fe-P , and the minimum increase of O-P were ob- served. The application of cow dung changed all kinds of inorganic phosphorus or proportion of the total inorganic phosphorus in the order of Fe-P 〉 Ca-P 〉 AL-P 〉 O-P without cow dung and then Fe-P 〉 AL- P 〉 Ca-P 〉 O-P with cow dung. The content of various forms of phosphorus in the surface soil was higher than that in subsoil, however, except for the relative content of AL-P, the content of the rest of the forms of phosphorus was high in the subsoil. It revealed that application of cow dung can help transfer soil inorganic phosphorus to AL-P, and increase the inorganic phosphorus content which is highly effective to plants in black soil.

关 键 词：牛粪 黑土 无机磷形态分级 磷素有效性 

分 类 号：S811.6[农业科学—畜牧学]