一、缺素症狀表現
1.缺(que)氮(dan)。番(fan)茄(qie)缺(que)氮(dan)時(shi),植(zhi)株(zhu)瘦(shou)弱(ruo),葉(ye)色(se)淡(dan)綠(lv)色(se)或(huo)黃(huang)綠(lv)色(se),葉(ye)小(xiao)而(er)薄(bo),葉(ye)脈(mai)由(you)黃(huang)綠(lv)色(se)變(bian)為(wei)深(shen)紫(zi)色(se),莖(jing)稈(gan)變(bian)硬(ying)並(bing)呈(cheng)深(shen)紫(zi)色(se)。花(hua)蕾(lei)變(bian)為(wei)黃(huang)色(se),易(yi)脫(tuo)落(luo),果(guo)小(xiao)而(er)少(shao)。
2.quelin。fanqiequelinshi,zaoqiyepianbeimianchuxianzihongse,maijianxianchuxianyixiexiaobandian,suihoukuozhandaozhenggeyepian,yemaijiyebingzuihoubianchengzihongse。jingxichang,fuyouxianwei,yepianxiao,houqichuxianjuanye,jieshiyanchi。
3.缺que鉀jia。番fan茄qie缺que鉀jia時shi,老lao葉ye和he小xiao葉ye呈cheng灼zhuo燒shao狀zhuang,葉ye緣yuan卷juan曲qu,脈mai間jian失shi綠lv,有you些xie會hui在zai失shi綠lv區qu出chu現xian邊bian緣yuan為wei褐he色se的de小xiao枯ku斑ban,以yi後hou老lao葉ye脫tuo落luo,莖jing變bian粗cu,木mu質zhi化hua。根gen細xi弱ruo,果guo實shi成cheng熟shu度du不bu一yi,畸ji形xing。
4.quegai。fanqiexugailiangda,huaqiquegaikefashengdinglieguo,youguoqibujizhouweiguopikailie,taizuozuzhiwaifan,shiyouguoxingchengqifanbaliedejixingguo。youguopengdaqiquegai,kexingchengqifuguo,sucheng“黑膏藥病”,發病初期在果臍附近出現黃褐色斑點,隨病斑擴展變為褐色,向內凹陷、變硬,果實停止膨大,提早變紅,果形變扁,果麵少光澤。
5.缺que鎂mei。新xin生sheng葉ye片pian卷juan曲qu,中zhong下xia部bu葉ye片pian普pu遍bian黃huang化hua,並bing由you下xia往wang上shang發fa展zhan。番fan茄qie缺que鎂mei時shi,葉ye綠lv素su含han量liang低di,葉ye片pian黃huang化hua,光guang合he作zuo用yong微wei弱ruo,嚴yan重zhong影ying響xiang營ying養yang的de積ji累lei,可ke造zao成cheng大da幅fu度du的de減jian產chan。
6.缺(que)錳(meng)。番(fan)茄(qie)缺(que)錳(meng)時(shi),葉(ye)片(pian)脈(mai)間(jian)失(shi)綠(lv),距(ju)主(zhu)脈(mai)較(jiao)遠(yuan)的(de)地(di)方(fang)先(xian)發(fa)黃(huang),葉(ye)脈(mai)保(bao)持(chi)綠(lv)色(se)。以(yi)後(hou)葉(ye)片(pian)上(shang)出(chu)現(xian)花(hua)斑(ban),最(zui)後(hou)葉(ye)片(pian)變(bian)黃(huang),很(hen)多(duo)情(qing)況(kuang)下(xia),先(xian)在(zai)黃(huang)斑(ban)出(chu)現(xian)前(qian)出(chu)現(xian)褐(he)色(se)小(xiao)斑(ban)點(dian)。嚴(yan)重(zhong)時(shi),生(sheng)長(chang)受(shou)抑(yi)製(zhi),不(bu)開(kai)花(hua),不(bu)結(jie)實(shi)。
7.缺硼。幼苗子葉和真葉發紫,葉片僵而脆。莖生長點發黑、幹枯,在生長點附近長出新的側枝。整個植株呈叢生狀。頂端的枝條向內卷曲,發黃而死,葉片、葉柄及中脈都變脆。果實成熟期不齊,果實常覆蓋一些暗黑色的疤痕,並破裂。
8.缺硫。葉色淡綠色,向上卷曲,植株呈淺綠色或黃綠色,心葉枯死或結果少。
二、防治方法
結jie合he番fan茄qie缺que素su表biao現xian症zheng狀zhuang,施shi入ru相xiang應ying的de適shi量liang肥fei料liao。除chu足zu量liang底di施shi外wai,如ru果guo出chu現xian缺que素su症zheng狀zhuang可ke以yi結jie合he澆jiao水shui進jin行xing追zhui施shi或huo葉ye麵mian噴pen施shi。葉ye麵mian噴pen施shi濃nong度du要yao適shi宜yi,每mei5天左右噴施1次,連續2~3次。
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