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时间:2018-12-15
《水稻插秧田恶性杂草项目可行性研究报告》》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、一、项目必要性分析1、项目研究开发的目的意义方正县地处松花江中游南岸,长白山支脉张广才岭北段西麓,三面环山,一面临水,是以水稻生产为主的农业县份,全省优质水稻的重点产区,全国水稻旱育稀植技术发源地,也是全国中小城市生态环境建设实验区。境内无任何化工、冶炼污染源,森林覆盖率79%,空气清新,地净水清,拥有发展优质稻米生产的优越自然条件。县内农民的水稻种植水平居全国前列。近些年来,我地区从未进行过系统的水田恶性杂草普查或调查,恶性杂草分布、变化情况不清;我县水田化学除草历史长,大面积使用化学成分单一的除草剂,对水田杂草群落的杀灭作用不均衡,导致我地区水稻插秧田杂
2、草的主要群落发生一定的变化,次要杂草和恶性杂草如稻李氏禾、匍茎剪谷颖、眼子菜、雨久花、萤阑等危害日益加重,但可有效防治次要杂草和恶性杂草的除草剂种类极少,防治难度加大,难以制定行之有效的杂草综合防除方案,水田除草带有很大的临时性、盲目性,造成技术人员指导防治时无“章”可循,农民进行防治时也无“章”可循,难于对症下药,难于适时防治,难于保证防治效果,除草剂药害、药效事件时有发生,不仅增加了除草成本,还污染水田的生态环境。这些恶性杂草迅速在水田漫延成为独自强势群落,严重威胁到水稻生产的稳定和发展,如稻李氏禾由于其危害重,防治难,使农民被迫弃耕搬迁,又被稻农称为“
3、搬家草”Opinionsandsuggestionsontheparty'smasslineeducationalpracticeAccordingtothecentralandprovincial,municipalunifieddeployment,accordingtomunicipalPartycommittee"aboutcarryingouttheparty'smasslineeducationalpracticeactivityinthecity'simplementationopinions,thespiritoftheparty'smass
4、lineeducationalpracticeactivitiesfrom20**inJanuaryto99months,carriedoutatalllevelsofdepartmentsanddirectlyaffiliatedinstitutionsandgrass-rootspartyorganizations.AccordingtomyactualCounty,thecountytocarryouttheeducationpracticeputforwardthefollowingimplementationopinions.First,theov
5、erallrequirementsCountycountyeducationpracticetotheeighteenPartyofeight,thespiritofthethethirdPlenarySessionofthe18thCPCCentralCommitteeastheguidance,conscientiouslyimplementthespiritofgeneralsecretaryXiJinpingbookseriesofimportantspeech,earnestlyimplementtheCentralCommitteereally,
6、opinionsandadvice><<>,7、ofZhuanglangZhuang,improvetheirworkstyle,servicetothemassesofthepeople,thefoundationofconsolidatinggrassroots,promotetransformationacrossefforts,tofurtherimplementthecentraleightregulationsand8、tions,municipalprovisionso
7、ofZhuanglangZhuang,improvetheirworkstyle,servicetothemassesofthepeople,thefoundationofconsolidatinggrassroots,promotetransformationacrossefforts,tofurtherimplementthecentraleightregulationsand8、tions,municipalprovisionso
8、tions,municipalprovisionso
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