不同有机肥及其混施对黑土酶活性动态变化的影响  

Effects of Different Manures and Their Mixed application on the Dynamic Changes of Soil Enzymes Activity for Black Soil

作　　者：陈闯[1] 吴景贵[1] 杨子仪[1] 

机构地区：[1]吉林农业大学资源与环境学院,长春130118

出　　处：《水土保持学报》2014年第6期245-250,共6页Journal of Soil and Water Conservation

基　　金：国家科技支撑计划项目"东北与黄淮海粮食主产区适应气候变化技术研发与应用"(2013BAC09B01);国家科技支撑计划项目"松辽平原区农牧结合循环生产技术集成研究与示范项目"(2012BAD14B05);吉林省科技厅重点科技成果转化项目"高效多功能夹心肥料的示范与推广"(20130303035NY)

摘　　要：在大垄双行栽培模式下,对不同有机物料及其混施对玉米不同生育期土壤酶活性的动态变化进行了研究。试验包括6个处理,分别为冷粪培肥、热粪培肥、秸秆培肥、冷热混施、秸粪混施和常规对照。结果表明:土壤酶活性随玉米生育期的变化呈现出明显的规律性,且6种培肥处理下酶活性的变化趋势基本一致。在提高土壤转化酶、脲酶和中性磷酸酶活性上冷粪培肥、热粪培肥和秸粪混施处理均具有显著效果,除秸秆培肥外其他各培肥处理对土壤过氧化氢酶活性影响均不大。在玉米生育时期内土壤酶活性的动态变化各不相同。各处理中过氧化氢酶、转化酶、脲酶和中性磷酸酶均是在大喇叭口期或者灌浆期、拔节期或者大喇叭口期、拔节期、大喇叭口期出现峰值。The dynamic changes of soil enzyme activities in the growing phases of corn were determined under the double line at one width ridge cultivation mode in six treatments.The treatments were included in the experiment consisted of dung manure,chicken manure,straw manure,dung and chicken,dung,chicken and straw,un-amended control.The results showed that：With the corn growing the enzyme activities of different treatments changed regularly and had the same trend.Dung manures,chicken manures and straw combined with dung and straw showed significant effects on improving soil invertase,urease and neutral phosphatase activities,and all treatments had no effects on catalase activities except straw manures.The dynamic changes of soil enzyme activities were different at different phases of corn growth.There was a maximum in different soil enzyme activities,for catalase in filling or large bell stage,for invertase in jointing or large bell stage,for urease in jointing stage and for neutral-phosphatase in large bell stage.

关 键 词：有机培肥 玉米生育期 土壤酶活性 

分 类 号：S154.2[农业科学—土壤学]