种植模式对稻田土壤微生物数量及活度的影响  

Studies on the Effect of Different Planting Patterns on the Microbes and Activities in Paddy Soil

作　　者：祖智波[1] 陈冬林[2] 谭周进[2] 田慧[2] 屠乃美[2] 

机构地区：[1]湖南农业大学人事处,长沙410128 [2]湖南农业大学,长沙410128

出　　处：《世界科技研究与发展》2007年第6期36-39,98,共5页World Sci-Tech R&D

基　　金："十五"国家科技攻关课题"国家粮食(水稻)丰产科技工程"(2004BA520A01)

摘　　要：为了明确种植模式对稻田土壤微生物的影响情况,进行了少耕和翻耕时不同种植模式对稻田土壤微生物数量及活度的影响研究,结果表明:种植马铃薯、紫云英、黑麦草、油菜、小黑麦等冬季作物能够不同程度的影响土壤中微生物的数量与活度,影响程度可以表示为马铃薯>黑麦草>小黑麦>紫云英>油菜>冬闲。在晚稻收割期,少耕土壤中的好气性细菌、厌气性细菌、真菌、放线菌数量都多于翻耕土壤。早稻收割期翻耕比少耕的微生物活度略高,而晚稻收割期翻耕比少耕的微生物略低,这与所测的几类微生物数量的基本变化规律是一致的。少耕能激活土壤中的微生物,改良土壤。Study on the model of rice planting and soil microbial activity analysis, the results showed that： Planting of potatoes, milk vetch, ryegrass, rape, Winter triticale and winter crops, such as different levels of microbial growth, Potato impact can be expressed as Ryegrass, Triticale, milk vetch, rape, Winter. Rice harvest, aerobic bacteria, anaerobic bacteria, fungi and actinomycetes number of the minimum tillage soil has more than tilling the soil. Less than before the harvest of early rice farmers tilling slightly higher microbial activity, and the rice harvest tillage before planting microbiology slightly lower than fewer, and the types of microorganisms measured changes in the basic law are the same. Activation of less arable soil microorganisms, soil improvement.

关 键 词：种植模式 土壤微生物 微生物活度 水稻土 

分 类 号：S154.3[农业科学—土壤学] S143.1[农业科学—农业基础科学]