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早春防芸豆根腐病妙招

文章来源:农化招商网更新时间:2018-08-29

众彩网 ZAOCHUNSHIJIERUGUODOULEISHUCAIYAOKAISHIYUMIAODINGZHI,ZAIZHEILITIXINGYIXIAGUANGDADECAINONGPENGYOU,YINGJIAQIANGDOULEISHUCAIYUMIAOHEDINGZHIHOUDEGUANLI。YAOBIMIANYUNDOUGENFUDECHANSHENG,ZAIZHEILIJIDAJIAJIESHAOYIXIAXIANGGUANDEZHISHIYAODIAN。


DOULEISHUCAIGENFUBINGSHUYUTUCHUANBINGHAI,YESHIYINGXIANGSHUCAISHENGCHANDEZHONGYAOYINSU。DOULEIGENFUBINGFASHENGYANZHONGZHUYAOYOUYIXIAJIGEYUANYIN:


一是同一品种蔬菜连作,造成病菌不断积累,增加了病菌侵染的几率;


二是机械损伤严重,尤其是移苗定植过程中,一部分根系断裂,伤口较大,难以愈合;


三是苗期低温冻害,在苗子出土不久,土壤温度突然降低,使苗出现红根的症状,这些条件都可能造成根腐病菌侵染。

FANGZHIFANGFA:

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ERSHISHIYONGYAOJIJISHIJINXINGGUANGEN,ZAISANYEQIANHECHUHUAQIGEJINXINGYICIXIAOGUOGENGHAO,KESHIYONGJINLEI500BEIYEHUNJIAMIXIANAN1000BEIYEJINXINGGUANGENCHULI,FANGZHIGENBUBINGHAIDEFASHENG。



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