近幾年，辣椒等的根部病害發生非常嚴重，很多棚內的蔬菜甚至因為防治不力而死光
、絕產。今年拱棚辣椒等定植後，很多棚又出現了嚴重的根部病害，死棵較多。

　　當dang前qian，灌guan根gen是shi防fang治zhi根gen部bu病bing害hai的de主zhu要yao手shou段duan。但dan是shi，從cong實shi際ji的de使shi用yong情qing況kuang看kan，菜cai農nong灌guan根gen的de效xiao果guo差cha別bie很hen大da。前qian段duan時shi間jian，山shan東dong壽shou光guang稻dao田tian鎮zhen一yi位wei菜cai農nong打da來lai電dian話hua反fan映ying，他ta與yu鄰lin居ju的de辣la椒jiao都dou出chu現xian了le死si棵ke問wen題ti

，拔ba出chu來lai看kan看kan症zheng狀zhuang也ye一yi樣yang，都dou是shi爛lan主zhu根gen，應ying該gai是shi同tong一yi種zhong病bing害hai。兩liang家jia使shi用yong了le同tong樣yang的de藥yao劑ji配pei方fang灌guan根gen，鄰lin居ju的de棚peng裏li藥yao到dao病bing除chu
，死si棵ke很hen快kuai控kong製zhi住zhu了le，可ke他ta的de效xiao果guo卻que不bu是shi很hen好hao，一yi些xie地di方fang仍reng在zai繼ji續xu發fa展zhan。這zhe是shi怎zen麼me回hui事shi呢ne？

　　引發死棵的根部病害種類很多，常發生的有疫黴根腐病、腐黴根腐病

、鐮刀菌根腐病、青枯病、kuweibingdengdeng。zhexiebinghai，weihaidebuweiyebuyiyang，youdezhuyaoweihaizhugen，youdeweihaimaoxigen，youdezeweihaijingjibu。xianyoudenongyaozhonglei，duoshunongyaohaishiyichushaweizhu

，suiranbufenjuyouneixixing

，danjuedaduoshunongyao（除乙磷鋁外）doubunengxiangxiaziyouchuandao。yinci
，ruhejiangnongyaozhunquediyongdaogenbufabingbuwei
，duigenbubinghaifangzhidexiaoguoyingxiangjida。henduocainongzaiguangenshi，pamafan，zhijieningdiaopentouduizhejingjibupenlin，zhezhongfangfasuiranduijingjibufashengdebinghaixiaoguobucuo

，danduizhugenhemaoxigenshangdebinghaixiaoguojiubunengbaozhengle。shangmiandelianghucainongguangenxiaoguochabieda
，henzhongyaodeyigeyuanyinjiushiyigexianbagenbubakai，duizhegenbuyongyao；而另一個則未經任何處理，直接用藥噴淋莖基部
，結果藥液未滲到根部
，自然不起作用。

　　根部病害重在預防
，平常要多用生物菌肥、jiakesudengyanggenhugen。binghaifashenghou
，shouxianyaofenqingbinghaizhonglei
，zuodaoduizhengyongyao。cihou，yaotebiezhuyiyongyaofangfa，quebaojiangyaojiyongdaofabingbuwei。jingjibufashengdebinghai，ruyimeigenfubingdeng，keyizhijieyongyaopensajingjibu。zhugenhemaoxigenfashengdebinghai
，zuihaobakaigenbuzaiyongyaohuoyongguangenqi（可用追肥槍改製）直接將藥送到根部，才能起到更好的效果。