不同微生物菌剂对芒萁秸秆腐熟过程中腐殖质构成的影响  

Effects of Severa1 Microorganisms on Humus Formation in Stalk Decomposition of Dicranopteris dichotoma

作　　者：李国平[1] 杨鹭生[1] 王宇晴[1] 赵林艳[1] 汤婉君 

机构地区：[1]武夷学院生态与资源工程学院,福建武夷山354300

出　　处：《热带作物学报》2015年第4期719-723,共5页Chinese Journal of Tropical Crops

基　　金：福建省科技创新平台建设计划项目(No.2013N2009);福建省林业厅科学研究项目(闽林科[2013]5号);国家级大学生创新创业训练计划(No.201210397011;201310397008)

摘　　要：以芒萁秸秆为材料,采用室内培养试验,研究了4种微生物菌剂对芒萁秸秆发酵腐熟过程中腐殖质形成的影响。结果表明:发酵30 d后4种微生物菌剂处理均显著降低发酵物全碳量、提高胡敏酸含量、降低胡敏素含量,使PQ值和HA/EA比值显著提高,说明微生物菌剂处理对芒萁秸秆腐殖质形成和组分有显著影响,其中木霉菌处理的效果最为显著,适宜作为芒萁秸秆的腐熟菌。The effects of four kinds of microbial agent on the formation of humic substances during Dicranopteris dichotoma stalk decomposition were studied in an indoor incubation experiment with an aim to explore the role that microbe plays in the fern stalk degradation. Results showed that the inoculation of the four microbial agents significantly reduced the total organic carbon content （TOC）, increased the content of humic acid （HA） and decreased the content of fulvic acid （FA） in the fermented stalk after 30 d. The remarkable increase of PQ （the proportion of HA to extractable humus） and HA/FA suggested that the treatments of microbial agent had the significant influence on the formation and composition of fern humus. Among the four microbial agents, Trichoderma sp. exhibited the strongest influence, and so was regarded as the suitable microbial agent for Dicranopteris dichotoma stalk decomposition. The paper might provide a theoretical basis for further studies on the role of microorganisms in the HS formation of fern stalk and the comprehensive development and utilization of D. dichotoma

关 键 词：微生物菌剂 腐殖质形成 芒萁 

分 类 号：S151.9[农业科学—土壤学]