秸秆培肥对风沙土微生物量及土壤酶活性的影响

The Effects of Applying Organic Matter in Wind Blown Soil on Microbial Biomass and Enzyme Activity

风沙土进行麦秸等有机物料的培肥试验表明,风沙土的微生物量与土壤酶活性在作物生育期内均处于动态变化,在作物发育旺期达到最大值。不同有机物料处理均能增加风沙土的微生物量,低量秸秆+泥炭全肥+泥炭处理增加值最大。风沙土中过氧化氢酶、磷酸酶的活性表现一致,其中低量秸秆+泥炭全肥+泥炭>低量秸秆+泥炭全肥>高量秸秆>泥炭全肥>低量秸秆。

Field experiment was conducted to study the effect of applying organic matter in wind blown soil on microbial biomass and enzyme activity. The results showed that microbial biomass and enzyme activity keep dynamic changes during wheat growing season in wind blown soil, and reached the peak level in wheat booting stage. Compared with chemical fertilizer, all the other treatments could increase the microbial biomass in different degree, the same as catalase and alkaline phosphatase activity.