秸秆生物降解技术不同使用年限对土壤微生物的影响  

Effects of Different Application Periods of Straw Biodegradation Technology on Soil Microorganisms

作　　者：于淼[1] 

机构地区：[1]辽宁省微生物科学研究院,辽宁朝阳122000

出　　处：《现代农业科技》2017年第16期164-164,172,共2页Modern Agricultural Science and Technology

摘　　要：本文采集喀左地区使用秸秆生物降解技术0~5年的土壤样本,进行菌数测试,并分析其变化。结果表明,生物降解技术的使用年限对土壤各类微生物的数量存在不同的影响,使用该技术能明显增加土壤中真菌和细菌数量,氨化菌数量与之无明显相关性,硝化菌数量表现出一定的增加趋势,固氮菌数量则先增后减。In this paper, soil samples were collected in Kazuo area where the straw biodegradation technology had been applied for 0-5 years, the microorganisms were counted,and its change was analyzed. The results showed that effects of application periods of straw biodegradation technology on soil microorganisms were different. The technology increased significantly the amount of fungus and bacterium. There was no obvious correlation between ammonifiers amount and the application periods of the technology. The nitrobaeterium amount showed a certain increasing trend,and the amount of nitrogen-fixing bacteria increased firstly, then decreased.

关 键 词：秸秆生物降解技术 使用年限 土壤微生物 数量变化 

分 类 号：S154[农业科学—土壤学]