隨著溫度的不斷降低,番茄出現了不少生理性問題。
落果 番茄果實在開花授粉3~4天後開始膨大,7~20天tian後hou膨peng大da速su度du最zui快kuai,果guo實shi不bu斷duan吸xi取qu影ying響xiang膨peng大da,外wai界jie環huan境jing的de變bian化hua與yu管guan理li不bu當dang,使shi番fan茄qie果guo柄bing形xing成cheng層ceng細xi胞bao分fen裂lie受shou到dao影ying響xiang,果guo枝zhi無wu法fa承cheng擔dan果guo實shi重zhong量liang,導dao致zhi落luo果guo。目mu前qian番fan茄qie落luo果guo的de主zhu要yao原yuan因yin是shi溫wen度du調tiao控kong與yu肥fei水shui管guan理li方fang麵mian的de問wen題ti,夜ye溫wen過guo低di和he旱han澇lao不bu均jun都dou會hui影ying響xiang果guo柄bing形xing成cheng層ceng細xi胞bao分fen裂lie。對dui發fa生sheng落luo果guo現xian象xiang的de棚peng室shi,除chu對dui棚peng室shi環huan境jing調tiao控kong外wai,還hai可ke以yi用yong5%萘乙酸水劑5000倍液噴霧,減少落果。
上部葉片黃化 zhuyaocongyebinghuoyepiandexiabukaishixiangyejianmanyan,yemaiheyeroudoufahuang。zhezhuyaoshiyoufeishuiguanlibudangshanggenougenzaochengde,zaidongjipengshizhongfashengshifenpubian。duigenxishoushangdezhizhu,shouxianyaojiangdipengshiturangshidu。shiduguoda,tuchuanbinghaiyiweihaigenxi,keyitongguohuachushiturangkuaisusanshi,tongshijianshaojiaoshuihuokongzhijiaoshuiliang。qici,jiaoshuishikeyipeiheshiyongjiakesu、海藻酸、氨基酸類等促生根肥料,誘發新根生長。再次,注意葉麵補充微量元素,促進葉片葉綠素合成。
空洞果 大(da)棚(peng)番(fan)茄(qie)產(chan)生(sheng)空(kong)洞(dong)果(guo),主(zhu)要(yao)是(shi)由(you)肥(fei)料(liao)使(shi)用(yong)不(bu)當(dang)或(huo)激(ji)素(su)使(shi)用(yong)過(guo)多(duo)造(zao)成(cheng)的(de)。激(ji)素(su)和(he)氮(dan)肥(fei)都(dou)會(hui)使(shi)番(fan)茄(qie)果(guo)實(shi)快(kuai)速(su)膨(peng)大(da),授(shou)粉(fen)受(shou)精(jing)不(bu)良(liang)的(de)果(guo)實(shi)胎(tai)座(zuo)部(bu)分(fen)膨(peng)大(da)緩(huan)慢(man),果(guo)實(shi)內(nei)部(bu)得(de)不(bu)到(dao)充(chong)實(shi),形(xing)成(cheng)空(kong)洞(dong)果(guo)。地(di)溫(wen)過(guo)低(di)、光照不足、根(gen)係(xi)受(shou)傷(shang)等(deng)都(dou)是(shi)造(zao)成(cheng)空(kong)洞(dong)果(guo)的(de)原(yuan)因(yin)。防(fang)治(zhi)番(fan)茄(qie)發(fa)生(sheng)空(kong)洞(dong)果(guo),應(ying)減(jian)少(shao)激(ji)素(su)的(de)使(shi)用(yong)次(ci)數(shu)和(he)用(yong)量(liang),注(zhu)意(yi)多(duo)補(bu)充(chong)鉀(jia)肥(fei),合(he)理(li)施(shi)用(yong)氮(dan)磷(lin)鉀(jia)肥(fei),注(zhu)意(yi)提(ti)高(gao)棚(peng)內(nei)溫(wen)度(du),增(zeng)加(jia)光(guang)照(zhao),加(jia)強(qiang)肥(fei)水(shui)管(guan)理(li)。
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