摘要
目的:以大豆生育期根部土壤微生物为研究对象,系统研究了不同施肥制度对土壤微生物种群和生理活性的影响。方法:以氯仿熏蒸培养法测定微生物碳含量、开氏法测定氮含量。结果:有机肥与复合肥配合施用能使得大豆各生育时期的土壤微生物碳、氮量显著增加,且促进土壤中细菌和放线菌数目的增加。结论:有机肥与复合肥配合施用更有利于大豆生育期土壤微生物的生长。
Objective： In the experiment, soil microorganism during soybean growth period is the object of study,and the effects of different fertilization treatment on soil microorganism is sysematicly studied. Method： Chloroform evaporated method is used to determine carbon contents,kjeldabl method is used to determine nitro- gen contents. Results： Combinationof organic and NPK compound fertilizer can greatly enhance soil microbial biomass in the whole soybean growth period and increase the quantity of bacteria and actinomycete in the soil. Conclusion： Combination of organic and NPK compound fertilizer can greatly enhance microbial biomass in the soil in the whole soybean growth period.
出处
《宿州学院学报》
2010年第2期44-46,共3页
Journal of Suzhou University
基金
宿州学院自然科学研究项目(2008yzk12)
关键词
微生物活性
微生物生物量
大豆生育期
有机肥
复合肥
Microbial activity
Microbial biomass
Soybean growth period ：Organic fertilizer
Compound fertilizer
