长期培肥对农田暗棕壤土壤微生物量的影响  

Effects of Long-term Fertilization on the Soil Microbial Biomass for Dark Brown Soils in Farmland

作　　者：隋跃宇[1,2] 焦晓光[3] 魏丹[2] 刘洪家[1] 

机构地区：[1]中国科学院东北地理与农业生态研究所黑土区农业生态院重点实验室,黑龙江哈尔滨150081 [2]黑龙江省农业科学院土壤肥料与环境资源研究所黑龙江省植物营养与土壤环境重点实验室,黑龙江哈尔滨150086 [3]黑龙江大学农业资源与环境学院,黑龙江哈尔滨150080

出　　处：《农业系统科学与综合研究》2010年第4期484-486,共3页System Sciemces and Comprehensive Studies In Agriculture

基　　金：黑龙江省杰出青年基金项目(JC200622);国家科技支撑计划课题(2008BAD96B02);黑龙江省自然基金项目(C200824);哈尔滨市科技创新人才研究专项(2008RFQYN126)

摘　　要：以黑龙江省农业科学院黑河分院"土壤肥力与肥效长期定位试验"的农田暗棕壤为研究对象,测定不同施肥制度下大豆土壤微生物量C、N动态变化,探讨长期不同施肥处理对暗棕壤的培肥效应。结果表明,与不施肥、单施化肥、单施有机肥处理相比,化肥配施有机肥能显著增加大豆各生育期土壤微生物量C、N量及qMB值,增强了农田暗棕壤土壤养分容量的供应强度,有利于农田暗棕壤的培肥。The effects of long-term fertilization treatments on the soil microbial biomass for dark brown soil in farmland were investigated,based on the long-term site-specific trial of dark brown soils fertility and fertilizers effects set up by Heilongjiang Academy of Agricultural Sciences.Results showed that：Compared with no fertilizer,only applied organic fertilizer and chemical fertilizer,the compound organic and chemical N,P,K fertilizer application could enhance the soil microbial biomasses greatly in the whole soybean growth periods,and also increased the supplies of the soil organic matter and total nitrogen,which benefit to the fertility of dark brown soil.

关 键 词：暗棕壤 大豆生育期 长期施肥 土壤微生物量碳、氮 

分 类 号：S147.2[农业科学—肥料学]