长期培肥对农田黑土土壤微生物量碳、氮的影响  

Effects of long-term fertilization on the soil microbial biomass for black soil in farmland

作　　者：焦晓光[1,2] 魏丹[3] 隋跃宇[4] 

机构地区：[1]黑龙江大学农业资源与环境学院,黑龙江哈尔滨150080 [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 [4]中国科学院东北地理与农业生态研究所,黑龙江哈尔滨150081

出　　处：《中国土壤与肥料》2010年第3期1-3,共3页Soil and Fertilizer Sciences in China

基　　金：国家自然科学基金项目(40901147)资助;黑龙江自然基金项目(C200817)资助;哈尔滨市科技创新人才研究专项(2008RFQYN126)资助;黑龙江省杰出青年基金项目(JC200622)资助;黑龙江省博士后启动基金的资助

摘　　要：以黑龙江省农科院"黑土肥力与肥效长期定位试验"的农田黑土为研究对象,探讨了长期不同施肥处理对土壤微生物量碳、氮动态变化的影响。研究结果表明,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,促进土壤微生物量显著增长,增强了农田黑土土壤有机质、全氮含量,有利于培肥农田黑土。The effects of long-term fertilization treatments on the soil microbial biomass for black soil in farmland were investigated,based on the long-term site-specific trial of black soil fertility and fertilizers effects set up by Heilongjiang academy of agricultural sciences.The 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 greatly enhance the soil microbial biomasses in the whole soybean growth periods,increase the supplies of the soil organic matter and total nitrogen,which benefited to the buildup of black soil fertility.

关 键 词：农田黑土 土壤微生物量 长期施肥 

分 类 号：S158[农业科学—土壤学]