有机物料种类及腐熟水平对土壤微生物群落的影响

应用Biolog方法研究了温室盆栽番茄条件下，施用不同种类及不同腐熟水平的有机物料对土壤微生物群落的影响，施用有机物料60d后取土分析土壤微生物群落多样性及土壤微生物对Biolog微平板中胺、氨基酸、糖、羧酸、聚合物和其它类碳源的利用情况，结果表明，施用有机物料可提高土壤微生物群落多样性，施用新鲜酒糟的多样性指数略高于施用腐熟10d酒糟，牛粪不同腐熟水平对多样性影响显著，且对多样性具有正向或负向的影响；对照和施用酒糟的土壤微生物对聚合物的利用率高于施用牛粪处理，施用新鲜物料处理的土壤微生物对聚合物的利用率高于施用腐熟物料处理。

Effects of different organic materials and their composting levels on soil microbial community

In this paper,a pot experiment with tomato and different organic material amendment was installed in a greenhouse,and the diversity of soil microbial communities and their utilization pattern of amine,amino acid,carbohydrate,carboxylic acid,polymer and miscellaneous were assessed by Biolog method at 60 days after amendment.The results showed that organic material amendment could improve soil microbial community diversity.Fresh distiller grain amendment was a little bit better than its 10 days composting,and the composting level of cow manure had a significant positive or negative effect on the microbial diversity.Among the six carbon sources,the utilization of carbohydrate by soil microbial communities was the highest,and the microbial communities in soils amended with distiller grain had a significantly higher utilization of polymer,relative to those in soils amended with cow manure.