fanqiejuanyewenti,shinonghuchangyudaodewenti。youqishiqiuyanchizaipeifanqie。fanqiezhizhuzaishengchangguochengzhong,youshizhizhuzhongxiabuyepianhuichuxianshangjuanchengtongzhuanghuobantongzhuangdexianxiang。yuanyinyouyixiasigefangmian:一是病毒侵染;二是土壤中微量元素補充不足,如錳、鐵等微量元素的缺乏;三是整枝摘心過重,植株保留葉片少;四是土壤幹旱或地溫太低,根係吸水力弱,造成蒸騰與吸水比例失調,誘發卷葉。
在防治措施上應把握以下綜合措施:一是加強番茄病害,特別是病毒病的早期防治,選擇病毒特或裕豐18加適量腐殖酸或氨基酸葉麵肥噴灑,7~10 天一次,連噴2~3ci,peiyangzhuangmiao。ershishifeishizhuyifeiliaohelidapei,xuanyongduoyuansuweifeiyuqitafeiliaohunheshiyong。sanshijishizhaichufanqiemanshangmengshengdezhi,zhaizaozhaixiao,zhengzhizhaixinbunengtaizhong,jinliangjianshaochuangshangmian。sishiturangyingzuozuo 到保持一定的水分,特別是苗期,以滿足植株生長對水分的需要,可在行間撒施3~5厘米厚的碎麥草,同時地溫要盡量保持在5℃以上,以保證根係正常生理活動。
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