番茄臍腐病又名蒂腐病、黑(hei)膏(gao)病(bing),是(shi)當(dang)前(qian)番(fan)茄(qie)生(sheng)產(chan)中(zhong)的(de)一(yi)種(zhong)常(chang)見(jian)的(de)生(sheng)理(li)病(bing)害(hai)。近(jin)年(nian)來(lai),在(zai)設(she)施(shi)栽(zai)培(pei)中(zhong),其(qi)發(fa)病(bing)率(lv)呈(cheng)上(shang)升(sheng)趨(qu)勢(shi),可(ke)在(zai)預(yu)防(fang)上(shang)讓(rang)菜(cai)農(nong)感(gan)到(dao)相(xiang)當(dang)頭(tou)疼(teng)。該(gai)病(bing)發(fa)病(bing)期(qi)長(chang)、可控性差,且發病後,完全失去商品價值,對產量及經濟效益造成嚴重影響。
一、 發病症狀 病bing斑ban發fa生sheng於yu幼you果guo臍qi部bu,先xian發fa生sheng暗an綠lv色se水shui漬zi狀zhuang病bing斑ban,果guo實shi底di部bu逐zhu漸jian凹ao陷xian呈cheng黑hei色se扁bian平ping狀zhuang,果guo實shi不bu變bian軟ruan且qie提ti前qian變bian紅hong。病bing斑ban處chu很hen快kuai被bei真zhen菌jun侵qin染ran,病bing斑ban上shang生sheng長chang出chu墨mo綠lv色se或huo粉fen紅hong色se的de黴mei狀zhuang物wu。
二、防治措施
1、培育壯苗。加強苗期管理,促進根係發育,提高對水、肥的吸收能力,增強植株抗病能力。
2、冬前地膜覆蓋。覆膜後可保持土壤水分的相對穩定,減少土壤中鈣質營養的淋失。
3、及時通風,保持合理溫差。無論苗期還是生長期根據
棚內溫度變化及時通風,避免短時間內溫差過大。
4、及時、適量灌水。結果期應做到水分的均衡供應,避免過幹過濕;冬季灌水應在早晨9時後進行,讓溫室內溫度均衡上升,避免溫度驟然上升,同時,還可避免因澆水造成的濕度過大引發其它病害。
5、jiangditurangzhongantaidanfeideshiyongliang。beifangshihuixingturangzhonggaiyuandabufenweigudingtaibukeliyong,ercaiyongsashihuozhuifeidengfangfashirudeguolinsuangaidengsuxiaogaifei,gailiziyejiyibeiturangguding;shiruantaidanfeihou,anlizibeixishouhou,shengyudetansuangenlizihuoliusuangenlizijiangturangzhongdekeliyonggailiziguding,jiangdiyouxiaogailiziliang。jiejuedebanfashizengjiaturangzhongyoujifeiheguolinsuangaideyongliang,zuihaoshiguolinsuangaijizhongshiyugenjihuoyuyoujifeihunheshiyongyijianshaoguding。
6、genwaizhuifeijinxingbugai。boqiezuoguohouyigeyueneiweixishougaideguanjianshiqi,danchunkaoturanghennanjishigongying。ciqikecongchuguoqikaishi,yixingqipenyicigaifei,youlvfenwei3號,1%過磷酸鈣水溶液,0.5%氯化鈣等鈣肥品種,最好與含有複硝酸酚鈉(愛多收)weizhuyaochengfendeyemianfeipeiheshiyong,keqimingxiandezengxiaozuoyong。nengguoyishangliuxiangcuoshishigaifeijunhenggongying,budannenggouyufangqifubingdefasheng,hainengtigaoguoshidekangbingnengli,zengqiangguopiderenxing,tigaonaichuyunnengli。
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