quegaibingshifayuyouguo
，kaishiweishuijinzhuanganhesebandian
，zhujianfazhanweihesehuoheisehuaisiquyu。keyikuozhanzhiguoshineibu
，bingguotizaobianhong，shudianxingdeshenglixingbinghai
，rongyidaozhiqifubing。預防措施：yifushudeyoujifeizuoweidifei，bingshiyongyidingliangdeguolinsuangai，yifangturangquegai。qici

，yaoshengengtudi
，caiyongdimofugaizaipei，baochiturangshuifenxiangduiwending，jianshaoturangzhonggaideliushi。disan，jieguoqibaozhengshuifendejunhenggongying，yanfanghuganhushi，gaowenganhanshijishijiaoshui
，yujijishipaishui，quebaogenxidezhengchanggongneng。disi
，shengchangqianqiwenshidanfei，bimianyingyangshengchangguowang，lingwai
，zaiyouguoqiyaojishizhaichuqifuguo，yijianshaozhizhutineideyangfenxiaohao，baozhengjiankangguoshideshengchang。

缺鉀

番茄生長需鉀較多
，缺鉀時主葉脈之間的葉片組織褪綠，葉片卷曲、chengchilvse，yanzhongshiyanyeyuanfashengzhuoshang。jiabuzujiangdileguoshizhongsuandehanliang，tongshiyinqiguoshineibutuise。fanqieshengchangzhonghouqi
，jishiturangzhongjiadehanliangbudi，danyouyugenxixishounenglixiajiang
，bunengtigongzugoudejiasugonggeiguoshifayuhezhizhushengchang，dangguoshichengshushirengbiaoxianchuquejiazhengzhuang。dangjiagongyingbuzushi，guoshidefayujiuyisunhaiyepianweidaijia，tongchangdangjie3穗～4穗果後，老葉易出現缺鉀症狀。栽培時應施足鉀肥，鉀肥易揮發，易淋失，應采取基施、追施以及葉麵噴施相結合，以保證中後期鉀素的供應。

缺磷

苗期磷素不足會使植株生長緩慢
，葉片變紫。低溫、幹旱等原因也會阻礙了根係吸收能力，而出現缺磷症狀。磷素在土壤中移動性較小，幼苗期需磷量大，應底施、深(shen)施(shi)。磷(lin)易(yi)被(bei)土(tu)壤(rang)膠(jiao)體(ti)固(gu)定(ding)
，所(suo)以(yi)施(shi)磷(lin)肥(fei)時(shi)可(ke)與(yu)腐(fu)熟(shu)好(hao)的(de)有(you)機(ji)肥(fei)混(hun)合(he)施(shi)或(huo)開(kai)溝(gou)集(ji)中(zhong)施(shi)
，可(ke)采(cai)用(yong)顆(ke)粒(li)狀(zhuang)磷(lin)肥(fei)，使(shi)其(qi)減(jian)少(shao)與(yu)土(tu)壤(rang)的(de)接(jie)觸(chu)麵(mian)，生(sheng)長(chang)中(zhong)後(hou)期(qi)可(ke)葉(ye)麵(mian)噴(pen)施(shi)補(bu)磷(lin)
，提(ti)高(gao)磷(lin)肥(fei)的(de)利(li)用(yong)率(lv)。

缺鐵

鐵tie屬shu微wei量liang元yuan素su，但dan在zai植zhi物wu生sheng長chang發fa育yu中zhong起qi著zhe重zhong要yao作zuo用yong，鐵tie不bu足zu可ke使shi葉ye片pian褪tui綠lv
，堿jian性xing的de土tu壤rang會hui阻zu礙ai植zhi株zhu對dui鐵tie的de吸xi收shou，應ying配pei施shi鐵tie肥fei，但dan不bu宜yi過guo量liang。一yi般ban采cai用yong硫liu酸suan亞ya鐵tie
，底di肥fei2千克／畝～7．5千克／畝，葉麵噴施0．2％～1％的水溶液。