农业环境科学学报Issue(8)：1575-1582,8.DOI:10.11654/jaes.2014.08.016
生物有机肥施用期对香蕉枯萎病及土壤微生物的影响
Effects of Biological Fertilizer Applications on Banana Wilt Disease and Soil Microorganisms
摘要
Abstract
Banana Fusarium Wilt, a soil borne diseases caused by a fungus, has severely affected banana production. Under field conditions, the effects of biological fertilizer on Banana Fusarium Wilt and soil microorganisms were studied using a completely randomized block de-sign. At basal and vegetative stages, applying biological fertilizer combined with chemical fertilizer obviously promoted banana growth, lead-ing to greater stem diameter, blade width and yields of banana after 270 d of transplanting than at other growth stages. When processed in BOF2, the average output of banana per district was up to 288 kg, significantly higher than the rest treatments. Applying biological fertilizer during vegetative period significantly reduced the occurrence of banana wilt and delayed the onset of banana wilt. Compared with the chemi-cal fertilizer control, the disease index was decreased by 54%by biological fertilizer applied at vegetative growth stage. Application of bio-logical fertilizer at the basal stage improved the population of soil bacteria and actinomycetes, but reduced that of fungi. Soil catalase, inver-tase, urease and acid phosphatase activities were all improved by biological fertilizer. The disease index was significantly negatively corre-lated with the number of both bacteria and actinomycetes in soil, but significantly positively with the number of fungi in soil. The findings suggest that application of biological fertilizer at banana vegetative period could improve soil microorganism structure, promote soil enzyme activities, and reduce and/or delay banana wilt disease occurrence.关键词
生物有机肥/香蕉枯萎病/土壤微生物/土壤酶Key words
biological fertilizer/banana wilt disease/soil microorganism/soil enzymes分类
农业科技引用本文复制引用
丁文娟,曹群,赵兰凤,刘小峰,柳影,杨盼盼,李华兴..生物有机肥施用期对香蕉枯萎病及土壤微生物的影响[J].农业环境科学学报,2014,(8):1575-1582,8.基金项目
国家自然科学基金项目（40971155）；广东省教育部产学研结合项目 （）
