中国油料作物学报2017，Vol.39Issue(5)：674-680,7.DOI:10.7505/j.issn.1007-9084.2017.05.012
旱作条件下油菜根茬对玉米两种土传病害的生防作用
Bio - control effects of rapeseed stubbles on two soil - borne diseases of maize under dry - land planting system
摘要
Abstract
To investigate bio - control of decomposed rape stubbles on soil - borne diseases in maize under multiple cropping pattern,alternate cropping experiments with rape - maize and wheat - maize were carried out in 2 dryland producing areas for 2 consecutive years. Soil nutrient,microbial characteristics,incidence of soil - borne diseases and crop yield were investigated by inoculation of Sphacelotheca reiliana and Rhizoctonia solani on rape stubble in these 2 cropping patterns. Results showed that available NPK nutrient in soil increased with rape stubbles crushing and returning to field continuously. Soil organic matter increased significantly during the entire experiment period. Bacteria quantity in soil increased while fungi quantity decreased. The occurrence of soil - borne diseases showed that bio - fumigation effect of rape stubble reduced incidence of these two soil - borne diseases. Compared with wheat - maize rotation pattern,maize yield in rape - maize rotation pattern was significantly improved,mean-ing that rape stubbles played an important role in fertilizing soil and improving microflora environment in soil. In addition,rape stubble had an inhibitory effect on these 2 soil - borne diseases in maize,which was conducive to improve the yield of succeeding maize.关键词
油菜/根茬/生物防治/硫代葡萄糖苷/土传病害Key words
rapeseed/stubbles/bio - control/glucosinolate glucoside/soil - borne disease分类
农业科技引用本文复制引用
刘哲辉,张利艳,康继平,张春雷..旱作条件下油菜根茬对玉米两种土传病害的生防作用[J].中国油料作物学报,2017,39(5):674-680,7.基金项目
"十二五"国家科技支撑计划课题(2014BAD11B03) （2014BAD11B03）
国家油菜产业技术体系建设(CARS-13) （CARS-13）
