安徽农业科学2011，Vol.39Issue(27)：16601-16603,16723,4.
沼液和氮肥配施对菜田土壤微生物生物量和活性的影响
Effects of Biogas Slurry Combinated with Nitrogen Fertilizer on Soil Microbial Biomass and Enzyme Activities
摘要
Abstract
[Objective] The aim of the study was to understand the mechanism of the effects of biogas slurry combinated with nitrogen fertiliz er on soil quality. [ Method] An investigation was made on vegetable field to study the influences of chemical nitrogen fertilizer, biogas slurry and their combinations with nitrogen and slurry on soil chemical properties, microbial biomass and soil enzyme activities. [ Results ] Compared to no fertilize treatment, the contents of NO3 , NH4 + , available P and K in soil were clearly increased by nitrogen fertilize, biogas slurry and combined nitrogen and biogas slurry treatments. In addition, biomass C and N were significantly increased, but biomass C/N was decreased in these treatments. Although nitrogen fertilize had a stronger impact on soil polyphenol oxidase activities, it had no significant effect on activities of cellulose and chitinase. Compared to no fertilize treatment, the only application of biogas slurry resulted in higher activities of polyphenol oxidase, cellulose and chitinase. Among these treatments, combined nitrogen and biogas slurry treatment had most significant effects on soil microbial biomass and enzyme activities. [ Conclusion ] It was concluded that the application of nitrogen combined with biogas slurry improved the soil chemical properties and microbial activities, being an effective measure to improve the quality and fertility of vegetable soil.关键词
氮肥/沼液/土壤微生物量/土壤酶活性Key words
Nitrogen fertilizer/ Biogas slurry/ Soil microbial biomass/ Soil enzyme activity分类
农业科技引用本文复制引用
张红,王桂良..沼液和氮肥配施对菜田土壤微生物生物量和活性的影响[J].安徽农业科学,2011,39(27):16601-16603,16723,4.基金项目
国家科技攻关资助项目(2008 BAK51B01-7-3). （2008 BAK51B01-7-3）
