简介:“互联网+烟草”是加快烟草发展方式转变和促进现代烟草发展的重要途径。为提高烟草科技信息的传播效率,构建高效、畅通的信息互联体系,以Android系统为平台,开发了基于智能手机的烟叶生产科技服务系统。系统主要实现了烟叶生产技术查询与管理、提问与回答、视频点播学习等功能,建立了烟技员社群互动服务新模式,并创新提出了专家积分排名制,为基层烟技员队伍建设提供了新的观点。系统测试结果显示,APP安装成功率96%,信息上传、下载成功率100%,系统的实用性和稳定性较好,适合在农村基层推广应用。系统的应用在一定程度上实现了烟叶生产科技服务的移动化和智能化,为烟农提供了获取技术的新方法。
简介:Microbecommunitiesinrhizosphereecosystemsareimportantforplanthealthbutthereislimitedknowledgeofthemintherhizospheresofgeneticallymodified(GM)plants,especialfortreespecies.WeusedtheamplitudesequencingmethodtoanalyzetheV4regionsofthe16SrRNAgenetoidentifychangesinbacterialdiversityandcommunitystructureintwoGMlines(D520andD521),onenon-geneticallymodified(nonGM)lineandinuncultivatedsoil.Afterchimerafiltering,468.133sequencesinthedomainBacteriaremained.Thereweretendominanttaxonomicgroups(with[1%ofallsequences)acrossthesamples.241of551genera(representingaratioof97.33%)werecommontoallsamples.AVenndiagramshowedthat1.926operationaltaxonomicunits(OTUs)weresharedbyallsamples.Wefoundaspecificchange,areductioninChloroflexi,inthemicroorganismsintherhizospheresoilplantedwithpoplars.Takentogether,theresultsshowedfewstatisticaldifferencesinthebacterialdiversityandcommunitystructurebetweentheGMlineandnon-GMline,thissuggeststhattherewasnoorverylimitedimpactofthisgeneticmodificationonthebacterialcommunitiesintherhizosphere.