新時期,隨著溫室蔬菜種植的推廣力度逐漸加大,其蔬菜中的病蟲害也開始呈現出種類多、發生頻率高、weihaixingqiangyijimanyansudukuaidengtedian,shidewenshishucaidezhongzhizaoyulejiaodadebingchonghaiweixie。jinjinianlai,wenshishucaizhongzhidezhongguonongyewangxiangguanjishurenyuanzhubutuidongleduiyubingchonghaideyanjiugongzuodeshenru,bingchonghaifashengdetiaojianyijiqifangzhigongzuodouqudeleyidingdejinzhan。jutieryan,bingchonghaizaiwenshishucaizhongzhizhongdechanshengdazhijubeileyixiajigefangmiandetiaojian:
首shou先xian,溫wen室shi蔬shu菜cai的de種zhong植zhi為wei病bing蟲chong害hai的de產chan生sheng提ti供gong了le適shi宜yi的de溫wen度du條tiao件jian以yi及ji空kong氣qi濕shi度du條tiao件jian。以yi蟲chong害hai的de發fa生sheng來lai講jiang,溫wen室shi具ju備bei較jiao高gao的de溫wen度du條tiao件jian,這zhe為wei白bai粉fen虱shi等deng怕pa冷leng的de害hai蟲chong提ti供gong了le在zai寒han冷leng地di區qu過guo冬dong的de機ji會hui,而er且qie這zhe種zhong高gao溫wen條tiao件jian還hai為wei害hai蟲chong的de繁fan殖zhi速su度du以yi及ji繁fan殖zhi頻pin率lv起qi到dao了le推tui動dong作zuo用yong,使shi得de蔬shu菜cai的de種zhong植zhi遭zao受shou到dao逐zhu漸jian加jia重zhong的de蟲chong害hai。以yi病bing害hai的de發fa生sheng來lai講jiang,溫wen室shi種zhong植zhi具ju備bei密mi閉bi的de環huan境jing能neng夠gou在zai寒han冷leng季ji節jie及ji夜ye晚wan時shi分fen依yi舊jiu保bao存cun適shi當dang的de溫wen度du,從cong而er使shi得de溫wen室shi內nei外wai的de溫wen度du差cha形xing成cheng過guo多duo露lu水shui,而er導dao致zhi溫wen室shi的de高gao濕shi度du狀zhuang況kuang,為wei病bing原yuan真zhen菌jun、細菌等提供滋生及繁殖的環境,導致蔬菜植株抗病能力的降低,從而形成了病害,比如黃瓜的霜黴病。
其次,溫室蔬菜的種植具備病蟲害生長的土壤條件。溫室中的土壤所接受的光照相對較少,具有較高的溫度及濕度,從而為某些真菌、細菌以及螻蛄、韭(jiu)蛆(qu)等(deng)的(de)生(sheng)長(chang)提(ti)供(gong)了(le)寄(ji)生(sheng)場(chang)所(suo)。而(er)且(qie),土(tu)壤(rang)病(bing)蟲(chong)害(hai)的(de)發(fa)生(sheng)較(jiao)難(nan)以(yi)治(zhi)理(li),未(wei)治(zhi)理(li)狀(zhuang)態(tai)下(xia)的(de)輪(lun)番(fan)種(zhong)植(zhi)會(hui)不(bu)斷(duan)地(di)為(wei)病(bing)蟲(chong)害(hai)生(sheng)長(chang)提(ti)供(gong)繁(fan)衍(yan)條(tiao)件(jian),從(cong)而(er)導(dao)致(zhi)病(bing)蟲(chong)害(hai)的(de)加(jia)重(zhong),使(shi)得(de)蔬(shu)菜(cai)的(de)病(bing)蟲(chong)害(hai)破(po)壞(huai)程(cheng)度(du)逐(zhu)步(bu)加(jia)大(da)。而(er)且(qie),溫(wen)室(shi)種(zhong)植(zhi)中(zhong)對(dui)於(yu)蔬(shu)菜(cai)種(zhong)類(lei)的(de)盲(mang)目(mu)移(yi)植(zhi)和(he)接(jie)種(zhong),不(bu)僅(jin)會(hui)通(tong)過(guo)移(yi)植(zhi)植(zhi)株(zhu)的(de)土(tu)壤(rang)為(wei)溫(wen)室(shi)帶(dai)來(lai)不(bu)曾(zeng)有(you)過(guo)的(de)其(qi)他(ta)病(bing)蟲(chong)害(hai),還(hai)會(hui)由(you)於(yu)盲(mang)目(mu)的(de)接(jie)種(zhong)導(dao)致(zhi)原(yuan)有(you)支(zhi)柱(zhu)抗(kang)病(bing)蟲(chong)害(hai)能(neng)力(li)的(de)降(jiang)低(di)。
2溫室蔬菜種植中病蟲害的相關防治措施分析
本文下麵從生態防治、栽培種植和物理防治3個方麵來分析一下防治溫室病蟲害的措施:
2.1防治溫室病蟲害的生態措施
生(sheng)態(tai)的(de)病(bing)蟲(chong)害(hai)防(fang)治(zhi)是(shi)目(mu)前(qian)病(bing)蟲(chong)害(hai)防(fang)治(zhi)工(gong)作(zuo)的(de)主(zhu)流(liu)處(chu)理(li)方(fang)法(fa),保(bao)護(hu)地(di)蔬(shu)菜(cai)如(ru)何(he)施(shi)肥(fei)它(ta)主(zhu)要(yao)是(shi)利(li)用(yong)了(le)病(bing)菌(jun)和(he)蔬(shu)菜(cai)二(er)者(zhe)的(de)生(sheng)長(chang)需(xu)要(yao)不(bu)同(tong)的(de)環(huan)境(jing)條(tiao)件(jian)的(de)原(yuan)理(li)來(lai)進(jin)行(xing)病(bing)蟲(chong)害(hai)防(fang)治(zhi),工(gong)作(zuo)人(ren)員(yuan)通(tong)過(guo)為(wei)蔬(shu)菜(cai)生(sheng)長(chang)營(ying)造(zao)良(liang)好(hao)的(de)條(tiao)件(jian),而(er)為(wei)病(bing)蟲(chong)害(hai)發(fa)生(sheng)創(chuang)造(zao)不(bu)利(li)的(de)生(sheng)長(chang)條(tiao)件(jian),來(lai)減(jian)少(shao)病(bing)蟲(chong)害(hai)的(de)發(fa)生(sheng)或(huo)降(jiang)低(di)病(bing)蟲(chong)害(hai)的(de)威(wei)脅(xie)。比(bi)如(ru),種(zhong)植(zhi)人(ren)員(yuan)在(zai)光(guang)照(zhao)條(tiao)件(jian)好(hao)的(de)上(shang)午(wu)將(jiang)溫(wen)室(shi)上(shang)麵(mian)覆(fu)蓋(gai)的(de)草(cao)苫(shan)揭(jie)掉(diao),使(shi)溫(wen)室(shi)通(tong)過(guo)光(guang)照(zhao)和(he)適(shi)當(dang)通(tong)風(feng)將(jiang)溫(wen)度(du)調(tiao)整(zheng)到(dao)28°以下,並將濕度調整到80%以下,為喜溫蔬菜的生長創造條件,而為適宜32°以上生存的霜黴病及白粉病等製造不良的條件。
2.2防治溫室病蟲害的栽培措施
種植人員采用栽培措施來防治病蟲害主要利用了換茬輪作、改善通風及透光的條件、增zeng施shi有you機ji肥fei以yi及ji實shi施shi膜mo下xia灌guan溉gai等deng幾ji個ge方fang麵mian的de措cuo施shi。首shou先xian,以yi換huan茬cha輪lun作zuo來lai講jiang,種zhong植zhi人ren員yuan通tong過guo進jin行xing定ding期qi的de換huan茬cha種zhong植zhi以yi及ji清qing理li,能neng夠gou通tong過guo改gai善shan土tu壤rang條tiao件jian或huo者zhe是shi清qing除chu帶dai有you病bing蟲chong害hai的de植zhi株zhu等deng,來lai使shi整zheng個ge溫wen室shi種zhong植zhi獲huo得de幹gan淨jing的de種zhong植zhi環huan境jing的de條tiao件jian。其qi次ci,以yi改gai善shan溫wen室shi的de通tong風feng以yi及ji透tou光guang條tiao件jian來lai講jiang,工gong作zuo人ren員yuan可ke以yi對dui蔬shu菜cai種zhong植zhi的de植zhi株zhu間jian距ju以yi及ji田tian壟long的de高gao度du及ji寬kuan度du等deng,降jiang低di病bing蟲chong還hai發fa生sheng的de溫wen度du、濕shi度du條tiao件jian。再zai者zhe,以yi增zeng施shi有you機ji肥fei和he進jin行xing膜mo下xia灌guan溉gai的de措cuo施shi來lai講jiang,工gong作zuo人ren員yuan為wei植zhi株zhu施shi加jia配pei方fang有you機ji肥fei,可ke以yi有you效xiao地di提ti高gao植zhi株zhu對dui氮dan磷lin鉀jia等deng營ying養yang成cheng分fen的de適shi當dang需xu要yao,從cong而er使shi植zhi株zhu增zeng強qiang對dui於yu病bing害hai的de抵di抗kang能neng力li。而er膜mo下xia灌guan溉gai則ze可ke以yi通tong過guo降jiang低di土tu壤rang的de水shui分fen蒸zheng發fa,使shi溫wen室shi內nei的de溫wen度du及ji濕shi度du調tiao整zheng到dao不bu利li於yu病bing蟲chong害hai的de發fa生sheng及ji繁fan殖zhi的de狀zhuang態tai。
2.3防治溫室病蟲害的物理措施
溫室蔬菜種植人員當前主要采用了對種子進行日曬、溫浴及藥浸處理、土壤及扣膜消毒、高溫堆肥悶棚等措施來進行病蟲害的物理防治。從對種子的處理來講,通過曬掉附著在種子上的病菌以及使種子獲得某種藥性、通(tong)過(guo)溫(wen)浴(yu)及(ji)殺(sha)滅(mie)病(bing)蟲(chong)害(hai)等(deng),來(lai)預(yu)防(fang)蔬(shu)菜(cai)常(chang)見(jian)病(bing)害(hai)及(ji)蔬(shu)菜(cai)苗(miao)期(qi)的(de)病(bing)蟲(chong)害(hai)。從(cong)土(tu)壤(rang)和(he)扣(kou)膜(mo)的(de)消(xiao)毒(du)來(lai)講(jiang),通(tong)過(guo)在(zai)種(zhong)植(zhi)之(zhi)前(qian)使(shi)用(yong)消(xiao)毒(du)劑(ji)將(jiang)土(tu)壤(rang)中(zhong)的(de)蟲(chong)卵(luan)或(huo)是(shi)病(bing)菌(jun)等(deng)殺(sha)滅(mie),以(yi)及(ji)通(tong)過(guo)使(shi)用(yong)敵(di)敵(di)畏(wei)等(deng)來(lai)噴(pen)扣(kou)膜(mo)以(yi)驅(qu)走(zou)白(bai)粉(fen)虱(shi)等(deng)害(hai)蟲(chong),來(lai)達(da)到(dao)對(dui)於(yu)病(bing)蟲(chong)害(hai)的(de)有(you)效(xiao)防(fang)治(zhi)。從(cong)高(gao)溫(wen)堆(dui)肥(fei)和(he)悶(men)棚(peng)的(de)措(cuo)施(shi)來(lai)講(jiang),種(zhong)植(zhi)者(zhe)可(ke)以(yi)通(tong)過(guo)充(chong)分(fen)地(di)腐(fu)熟(shu)肥(fei)料(liao)以(yi)消(xiao)滅(mie)肥(fei)料(liao)中(zhong)的(de)病(bing)蟲(chong)害(hai),以(yi)及(ji)在(zai)白(bai)天(tian)悶(men)棚(peng)以(yi)使(shi)用(yong)高(gao)溫(wen)殺(sha)滅(mie)病(bing)蟲(chong)等(deng),來(lai)對(dui)病(bing)蟲(chong)害(hai)進(jin)行(xing)防(fang)治(zhi)。
3結語
病(bing)蟲(chong)害(hai)的(de)發(fa)生(sheng)使(shi)得(de)溫(wen)室(shi)蔬(shu)菜(cai)的(de)種(zhong)植(zhi)受(shou)到(dao)了(le)極(ji)大(da)的(de)危(wei)害(hai),種(zhong)植(zhi)人(ren)員(yuan)必(bi)須(xu)積(ji)極(ji)地(di)采(cai)取(qu)有(you)效(xiao)的(de)措(cuo)施(shi)對(dui)這(zhe)些(xie)病(bing)蟲(chong)害(hai)進(jin)行(xing)防(fang)治(zhi),才(cai)能(neng)夠(gou)切(qie)實(shi)地(di)推(tui)動(dong)溫(wen)室(shi)蔬(shu)菜(cai)種(zhong)植(zhi)的(de)增(zeng)產(chan)效(xiao)果(guo)的(de)實(shi)現(xian)。
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