农肥和化肥对黑土氮素转化功能菌和土壤酶的影响  

Effects of Manure Fertilizer and Chemical Fertilizer on Nitrogen Transformation Bacteria and Soil Enzyme in Black Soil

作　　者：于佳[1] 王宏燕[1] 赵伟[1] 宋立娟[1] 

机构地区：[1]东北农业大学资源与环境学院,黑龙江哈尔滨150030

出　　处：《农业系统科学与综合研究》2011年第1期93-97,共5页System Sciemces and Comprehensive Studies In Agriculture

基　　金：国家"863"计划项目(2006AA10Z424)

摘　　要：实验以玉米田黑土为研究对象,主要研究土壤氮素转化功能菌及其活性在不同施入量农肥和化肥处理下的变化。结果表明:农肥高量处理使土壤氨化细菌和硝化细菌数量升高,分别是对照的2.22倍和4.09倍,而化肥高量处理使反硝化细菌数量明显增加,是对照的8.49倍;农肥处理对土壤微生物量碳、微生物量氮、土壤脲酶和土壤过氧化氢酶有促进作用,其活性明显高于对照。相关分析表明,土壤微生物量碳与土壤脲酶,土壤微生物量氮与过氧化氢酶和土壤氨化细菌之间均存在着极显著的正相关关系,而土壤微生物量碳与土壤氨化细菌之间存在着极显著的负相关关系。Various trends of soil function bacteria and its activity was Analyzed under different ratios of the manure and chemical fertilizers,in on the black soil field under maize.The results showed that the high manure fertilizer ratio scenario leads to an increase in ammonification bacteria and nitrobacteria,which were 2.22 times and 4.09 times of standard sample（CK） respectively.Meanwhile,the high chemical fertilizer ratio also contributed to a significant raise in the amount of denitrifying bacteria,which was 8.49 times of CK.Furthermore,Manure fertilizer scenario had a positive influence on soil microbial biomass carbon,nitrogen,soil urease and catalase as the analyzed data of activities of these factors were much higher than that of CK.Specifically speaking,the positive correlations existed in the following groups： soil microbial biomass C and soil urease activity,microbial biomass N and catalyse activity and microbial biomass and soil ammonification bacteria as well.At the same time,soil microbial biomass C and soil ammonification bacteria had significant negative correlation ship.

关 键 词：黑土 土壤功能菌 土壤微生物量 土壤酶 

分 类 号：S154[农业科学—土壤学]