不同施肥处理对南疆温室蔬菜根际土壤微生物的影响

Effects of Different Fertilizer Treatments on Microbe in Rhizosphere Soil of Vegetable in Greenhouse in Southern Xinjiang Region

以南疆塔里木盆地西缘城市喀什市的蔬菜温室为试验对象,测定温室土壤20cm处的耕作层的微生物种类、生物活性和生物量碳氮等指标,研究了不同施肥处理对南疆温室蔬菜根际土壤中微生物的影响。结果表明:施用有机肥可明显增加土壤中细菌、真菌及放线菌数目和活性,有机肥种类对土壤中生物活性有一定的影响;适量施用化肥能一定程度提高根际土壤中生物量碳和氮的的含量。

Taking the soil of the vegetable greenhouse in Kashgar in the West Tarim Basin as the research object, the microbe specie in soil, biological activity of microbe and biomass carbon nitrogen at cultivated horizon depth were determinated,the effect of different fertilizer treatment on microbes in rhizosphere soil were studied. The results showed that the number and activity of bacterium and actinamyce when organic fertilizer was applied. If the chemical fertilizer was moderate, the biological activity of microbe was determined by the type organic fertilizer. The chemical fertilizer can partly improve the content of biomass carbon and biornass nitrogen in rhizosphere soil.