肥水管理:立秋後氣溫漸低,有利韭菜生長。在韭菜迅速生長之前,應進行一次重追肥,每667平方米追施腐熟豆餅300~500qianke。zhuifeishiyongzhugancongxingjianbajiucaiboxiangliangce,luchuxingjiandimian,kaixiaogou,neisafangdoubing,ranhougaitu。shifeihoujiaoyicidashui。yekexianjiaoshui,daiqimianshiyihou,yongzhugancongxingjianbajiucaicongxingjianfenxiangliangce,jiangdoubingsashiyuxingjian,jiezhehuachu,jiangdoubingyutuhunyunzaitashi。yihoumei5~7天澆水1次,連澆4~5次。9月下旬結合澆水每667平方米施尿素20千克,10月上旬停止澆水施肥。
停割防倒:jiucaiyanggenqijiantingzhishouge,tinggehoujiucaishengchangkuaiyidaofu,tianjianyinbihou,changfashengbinghailanyezhuangkuang,yinci,yaozaijiucaiqiliangbianzhijia,qineilatiesiyifangjiucaidaofu,zheyangyouliyutianjiantongfengtouguang,baochijiucaiwangshengdeguanghezuoyong,cujinjiucaishengchang,jianshaobingchonghaifasheng。
病蟲防治:韭菜養根期間要注意病蟲害防治。主要病害是韭菜疫病和灰黴病,高溫多濕是發病的主要原因,常用藥劑有50%多菌靈可濕性粉劑500~800倍液,或50%粉鏽寧800~1000倍液。蟲害主要是韮蛆、薊馬等。韮蛆秋季在9~10月危害,防治幼蟲可用50%辛硫磷乳油3000倍液,順韭根進行澆灌,或每667平方米用樂斯本乳油150~200毫升,對水1000千克,噴霧器擰去噴頭,將藥液順行噴入韭菜根部。
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