菌剂与缓释肥配施对复垦土壤微生物生态的影响  

Efficiency of Mixed the Microbial Agent and Slow-release Fertilizer on Reclaimed Soil's Microbial Ecology

作　　者：胡可[1] 王利宾[1] 杜慧玲[1] 

机构地区：[1]山西农业大学资源环境学院,山西太谷030801

出　　处：《水土保持学报》2011年第5期86-88,93,共4页Journal of Soil and Water Conservation

基　　金：山西省科技攻关项目(20110311022)

摘　　要：在盆栽模拟复垦的条件下,利用传统平板计数法与BIOLOG方法相结合研究菌剂与缓释肥配施对土壤微生物生态的影响。结果表明,菌剂与缓释肥配施能显著提高土壤细菌、真菌和放线菌的数量。同时对土壤酶活性也具有有明显的影响。就脲酶而言,由于缓释肥与菌剂的配合施用,抑制了其活性,延长了缓释肥的肥效。通过对磷酸酶的研究发现,由于菌剂的加入促进了磷酸酶的活性,菌剂与缓释肥配施处理的土壤磷酸酶活性显著高于纯化肥处理的。通过多样性指数的测定表明菌剂与缓释肥配施处理土壤微生物群落的Shannon多样性指数、Simpson多样性指数和McIntosh均匀度等各项指标均显著高于其他处理的。说明菌剂与缓释肥配施不但可以提高土壤微生物功能多样性,而且还可以提高土壤微生物群落均匀度,从而可促进土壤微生物生态系统的稳定,提高土壤微生物群落的生态功能。This experiment aimed at researching on the microbial ecology of microbial agent mixed with slow-release fertilizer by using the method that plate count method and BIOLOG microplate technique.The experiment adopted the method of cultivating potted plants in a greenhouse by reclaimed soil.Appling microbial agent mixed with slow-release fertilizer could increase qualities of bacteria,fungus and actinomycosis remarkably.In addition,appling microbial agent mixed with slow-release fertilizer could enhance the activities of soil enzymes.It could also extend the efficiency of controlled release fertilizer.But it could inhibit the activities of urea enzymes.To phosphoric enzymes,it enhanced its efficiency,and it had an remarkable advantages over pure chemical fertilizer.The results also demonstrated that the Shannonn and Simposn index and Mcintosh evenness with microbial agent and slow-release fertilizer addition were higher than those of other treatments.Microbial agent and slow-release fertilizer could increase microbial diversity and the evenness of soil microbial community,thus promoted stability of soil ecological system and disease suppressing.

关 键 词：菌剂 缓释肥 微生物生态 群落功能多样性 

分 类 号：S154.4[农业科学—土壤学]