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、危wei害hai性xing強qiang以yi及ji蔓man延yan速su度du快kuai等deng特te點dian,使shi得de溫wen室shi蔬shu菜cai的de種zhong植zhi遭zao遇yu了le較jiao大da的de病bing蟲chong害hai威wei脅xie。近jin幾ji年nian來lai,溫wen室shi蔬shu菜cai種zhong植zhi的de中zhong國guo農nong業ye網wang相xiang關guan技ji術shu人ren員yuan逐zhu步bu推tui動dong了le對dui於yu病bing蟲chong害hai的de研yan究jiu工gong作zuo的de深shen入ru,病bing蟲chong害hai發fa生sheng的de條tiao件jian以yi及ji其qi防fang治zhi工gong作zuo都dou取qu得de了le一yi定ding的de進jin展zhan。具ju體ti而er言yan,病bing蟲chong害hai在zai溫wen室shi蔬shu菜cai種zhong植zhi中zhong的de產chan生sheng大da致zhi具ju備bei了le以yi下xia幾ji個ge方fang麵mian的de條tiao件jian:
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dao28°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、tongguowenyujishamiebingchonghaideng,laiyufangshucaichangjianbinghaijishucaimiaoqidebingchonghai。congturanghekoumodexiaodulaijiang,tongguozaizhongzhizhiqianshiyongxiaodujijiangturangzhongdechongluanhuoshibingjundengshamie,yijitongguoshiyongdidiweidenglaipenkoumoyiquzoubaifenshidenghaichong,laidadaoduiyubingchonghaideyouxiaofangzhi。conggaowenduifeihemenpengdecuoshilaijiang,zhongzhizhekeyitongguochongfendifushufeiliaoyixiaomiefeiliaozhongdebingchonghai,yijizaibaitianmenpengyishiyonggaowenshamiebingchongdeng,laiduibingchonghaijinxingfangzhi。
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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