【摘要】 采用熏蒸-提取法对田间条件下化肥配施不同有机物的土壤中微生物量的动态变化进行了测定分析．结果表明，化肥配施有机物后，土壤中做生物量将比单施化肥的明显增加．增加的幅度及其动态将因有机物的质量（生物降解难易性）不同而变化。更多还原

【Abstract】 Soil microbial biomass in soils after applying chemical fertilizers and different organic matters was analysed by fumigation-extraction method. The results show that compared with the treatment of applying chemical fertilizers only,the soil microbial biomass in soils after applying chemical fertilizers along with organic matters would be increased significantly, and the increase ranges and dynamic changes in increment differed correspondingly with the qualities of organic matters.更多还原