最近,記者在下鄉時發現,很多棚室前後兩側(即前臉和後牆水道處)deshucaifabingzhong,zhezhongxianxiangzaidapenghuangguashangbiaoxiandeyouweiyanzhong。shenmeyuanyinzaochengdene?bushaocainongbijiaomangran,youxiecainongsuiranzhaodaoleyuanyin,danyouyuyingduicuoshibudedang,rengmeiyoufangzhizhuzhelianggedifangshucaibinghaidefasheng。yinci,jizherenwei,henyoubiyaozaizheligendajiazaixifenxiyixiazhegewenti,yibiandajiajishizhaochuyuanyinsuozai,bingcaiquzhengqueyouxiaodefangzhicuoshi。
首shou先xian,說shuo一yi下xia大da棚peng前qian臉lian處chu蔬shu菜cai發fa病bing重zhong的de原yuan因yin。這zhe個ge問wen題ti其qi實shi是shi一yi個ge老lao問wen題ti,很hen多duo菜cai農nong都dou知zhi道dao,這zhe是shi由you於yu前qian臉lian處chu土tu壤rang濕shi度du較jiao大da造zao成cheng的de。並bing且qie,生sheng產chan中zhong,菜cai農nong也ye大da都dou做zuo到dao了le用yong薄bo膜mo將jiang棚peng前qian的de濕shi土tu蓋gai起qi來lai。但dan是shi,這zhe樣yang還hai是shi不bu能neng將jiang棚peng前qian臉lian處chu的de濕shi度du給gei有you效xiao的de降jiang下xia來lai。是shi什shen麼me原yuan因yin呢ne?采cai訪fang中zhong,記ji者zhe發fa現xian,菜cai農nong雖sui然ran將jiang棚peng前qian的de濕shi土tu給gei蓋gai嚴yan實shi了le,但dan是shi由you於yu都dou沒mei有you在zai此ci處chu設she排pai水shui凹ao槽cao,因yin此ci並bing沒mei有you將jiang彙hui流liu於yu此ci的de流liu滴di給gei排pai出chu棚peng外wai,致zhi使shi流liu滴di最zui終zhong流liu入ru蔬shu菜cai的de種zhong植zhi行xing。在zai這zhe種zhong情qing況kuang下xia,大da棚peng前qian臉lian處chu的de濕shi度du仍reng非fei常chang大da,病bing害hai多duo發fa也ye就jiu不bu難nan理li解jie了le。因yin此ci,記ji者zhe在zai此ci提ti醒xing菜cai農nong朋peng友you,在zai將jiang棚peng內nei濕shi土tu用yong薄bo膜mo蓋gai嚴yan的de同tong時shi,一yi定ding要yao在zai棚peng前qian棚peng膜mo內nei側ce的de土tu壤rang上shang設she一yi排pai水shui凹ao槽cao,或huo用yong舊jiu水shui帶dai直zhi接jie在zai棚peng前qian立li柱zhu上shang設she一yi水shui渠qu,盡jin可ke能neng地di將jiang彙hui流liu於yu此ci的de水shui滴di排pai出chu棚peng外wai。同tong時shi,最zui好hao在zai此ci處chu設she置zhi二er膜mo,將jiang棚peng前qian濕shi土tu徹che底di隔ge離li。隻zhi有you這zhe樣yang,才cai能neng將jiang棚peng前qian臉lian處chu的de濕shi度du有you效xiao地di降jiang下xia來lai,從cong而er解jie決jue好hao此ci處chu蔬shu菜cai易yi發fa病bing的de情qing況kuang。
jiexialai,womenzaifenxiyixiahouqiangshuidaochushucaibinghaizhongdeyuanyin。zhegedifangdeshucaifabingzhong,yeshiyouyushidudazaochengde。jizhefaxian,youyugaichushucaideshangbushishangfangfengkou,fangfengkouchudepengmobingbushiliudixinghaodeEVA膜(mo),而(er)大(da)都(dou)是(shi)普(pu)通(tong)棚(peng)膜(mo),防(fang)流(liu)滴(di)性(xing)差(cha),再(zai)加(jia)上(shang)通(tong)風(feng)口(kou)常(chang)開(kai)啟(qi),因(yin)此(ci)無(wu)法(fa)將(jiang)水(shui)滴(di)引(yin)流(liu)到(dao)對(dui)麵(mian)棚(peng)膜(mo)上(shang),最(zui)終(zhong)水(shui)滴(di)隻(zhi)能(neng)滴(di)入(ru)棚(peng)內(nei),落(luo)到(dao)下(xia)麵(mian)的(de)蔬(shu)菜(cai)上(shang),在(zai)這(zhe)種(zhong)情(qing)況(kuang)下(xia),這(zhe)個(ge)地(di)方(fang)的(de)蔬(shu)菜(cai)自(zi)然(ran)就(jiu)發(fa)病(bing)重(zhong)了(le)。那(na)麼(me),如(ru)何(he)來(lai)解(jie)決(jue)好(hao)這(zhe)個(ge)問(wen)題(ti)呢(ne)?其(qi)最(zui)有(you)效(xiao)的(de)辦(ban)法(fa)就(jiu)是(shi)在(zai)大(da)棚(peng)放(fang)風(feng)口(kou)的(de)下(xia)麵(mian)設(she)置(zhi)防(fang)雨(yu)膜(mo),將(jiang)滴(di)下(xia)的(de)露(lu)珠(zhu)接(jie)住(zhu),並(bing)引(yin)流(liu)到(dao)水(shui)道(dao)上(shang)。其(qi)實(shi),這(zhe)個(ge)措(cuo)施(shi)不(bu)少(shao)菜(cai)農(nong)也(ye)都(dou)知(zhi)道(dao),但(dan)在(zai)生(sheng)產(chan)中(zhong)應(ying)用(yong)的(de)卻(que)不(bu)多(duo)。建(jian)議(yi)大(da)家(jia)還(hai)是(shi)在(zai)放(fang)風(feng)口(kou)處(chu)也(ye)設(she)一(yi)塊(kuai)防(fang)雨(yu)膜(mo),投(tou)資(zi)不(bu)大(da),但(dan)卻(que)能(neng)發(fa)揮(hui)大(da)作(zuo)用(yong)。
其實這兩項措施都費不了多大力,花不了多少錢,做好了,棚室前後兩側蔬菜易發病的問題就解決了。
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