沼渣有机无机复混肥对土壤养分含量和酶活性的影响  

Effects of Organic-inorganic Mixed Fertilizer Made by Biogas Residue on Soil Nutrients and Enzyme Activities

作　　者：董志新[1] 李筱梅[1] 续珍[2] 刘秀珍[1] 刘奋武[1] 张吴平[1] 卜玉山[1] 

机构地区：[1]山西农业大学资源环境学院,山西太谷030801 [2]中国农业大学资源环境学院,北京100091

出　　处：《土壤通报》2015年第2期398-404,共7页Chinese Journal of Soil Science

基　　金：山西省留学归国项目(2013-重点7);山西省攻关项目(20130313007-3)资助

摘　　要：通过盆栽试验研究了不同沼渣有机无机复混肥对土壤养分及酶活性的影响。结果表明:与无机肥处理相比,沼渣有机无机复混肥处理土壤有机质、全氮和有效磷含量分别提高了12.4%~26.3%、0.1%~10.3%、10.1%~30.1%,且以秸秆沼渣有机无机复混肥效果较好。有机肥处理对提高土壤过氧化氢酶活性效果显著,而沼渣有机无机复混肥处理对提高土壤脲酶活性效果较好。A pot experiment was conducted to study the effects of different organic-inorganic mixed fertilizers prepared with different biogas residues on soil nutrients and enzyme activities. The results showed that compared with inorganic fertilizer, the contents of soil organic matter, total nitrogen, and available phosphorus in the treatments of organic-inorganic mixed fertilizers made by different biogas residues increased 12.4% ~ 26.3%, 0.1% ~ 10.3%, and10.1% ~ 30.1%, respectively. The organic-inorganic mixed fertilizers made by straw biogas residue were better than by pig manure biogas residue. Organic fertilizers significantly increased the activities of soil catalase and the organic-inorganic mixed fertilizers made by biogas residues were better for increasing the activity of soil urease.

关 键 词：沼渣 有机无机复混肥 土壤 养分 有机质 酶活性 

分 类 号：S158[农业科学—土壤学] S154.2[农业科学—农业基础科学]