誤區二:dongxixianggangsizhijieyazaishanqiangshang。zaiweidapenganzhuangdongxixiangyamogangsishi,youdecainongzhijiejianggangsiyazaishanqiangshang,dangshiyongjinxianjichenjingangsishi,gangsihuilerushanqiangzhong。jianyizaishanqiangshanggangsidedibudianfeijiuchetaihuozhexiedideng,kuodagangsishoulimianji,bimiangangsilejinshanqiangzhong。
誤區三:壓(ya)膜(mo)繩(sheng)直(zhi)接(jie)壓(ya)在(zai)棚(peng)膜(mo)上(shang)。菜(cai)農(nong)在(zai)用(yong)壓(ya)膜(mo)繩(sheng)南(nan)北(bei)向(xiang)壓(ya)棚(peng)膜(mo)時(shi),如(ru)果(guo)將(jiang)壓(ya)膜(mo)繩(sheng)直(zhi)接(jie)壓(ya)在(zai)大(da)棚(peng)棚(peng)麵(mian)上(shang),那(na)麼(me)在(zai)拉(la)放(fang)草(cao)苫(shan)或(huo)刮(gua)風(feng)時(shi),壓(ya)膜(mo)繩(sheng)產(chan)生(sheng)擺(bai)動(dong),會(hui)將(jiang)棚(peng)麵(mian)與(yu)大(da)棚(peng)前(qian)部(bu)轉(zhuan)折(zhe)處(chu)的(de)棚(peng)膜(mo)磨(mo)破(po)。建(jian)議(yi)菜(cai)農(nong)朋(peng)友(you)在(zai)棚(peng)麵(mian)與(yu)前(qian)部(bu)轉(zhuan)折(zhe)處(chu)墊(dian)破(po)布(bu)、膠皮管等,或在壓膜繩上套塑料軟管,減緩棚膜的磨損速度。
誤區四:換膜時過早將舊膜撤下。有的菜農在換膜時,習慣先將舊膜撤下,待棚麵上的鋼絲、竹竿等維護或更換後,再將新膜換上。而在這段時間,棚內溫、shiduchuxianjuliebianhua,waijiedeyixiehaichongyechengjifeirupengnei,congerweiyixiebingchonghaidefashengyuchuanbomaixiayinhuan。suoyi,yidingyaosuoduanjiumochexiadaoxinmohuanshangdeshijian。jianyicainongjiangyaogenghuandezhugandengtiqianzhunbeihao,zaipengqianjiangxinmochenhao,zaichexiajiumo,lijitiaohuanhaoxuyaogenghuandezhugan,jiangxinmofugaishang。
誤區五:fangfengdaiyongliezhimohuojiumo。weilegeishucaichuangzaoshiyideshengchanghuanjing,baozhengdongjipengneiwendushiyi,cainongyibandouhuiyongzhiliangjiaohaodepengmo,danduiyudapengdingbudefangfengdaiquejingchangyongliezhimohuojiumo。liezhimo、舊(jiu)膜(mo)在(zai)冬(dong)季(ji)時(shi)消(xiao)霧(wu)流(liu)滴(di)性(xing)不(bu)好(hao),放(fang)風(feng)時(shi)容(rong)易(yi)產(chan)生(sheng)露(lu)水(shui),從(cong)而(er)導(dao)致(zhi)棚(peng)內(nei)的(de)空(kong)氣(qi)濕(shi)度(du)大(da),不(bu)利(li)於(yu)病(bing)害(hai)的(de)防(fang)治(zhi)。建(jian)議(yi)每(mei)年(nian)更(geng)換(huan)一(yi)次(ci)放(fang)風(feng)帶(dai)上(shang)的(de)膜(mo),並(bing)換(huan)用(yong)質(zhi)量(liang)比(bi)較(jiao)好(hao)、消霧流滴性強的膜。
誤區六:兩liang山shan牆qiang棚peng膜mo處chu沒mei有you覆fu蓋gai物wu。棚peng膜mo覆fu蓋gai好hao後hou,一yi些xie菜cai農nong沒mei有you及ji時shi在zai兩liang山shan牆qiang處chu的de棚peng膜mo上shang設she置zhi覆fu蓋gai物wu。菜cai農nong在zai拉la放fang草cao苫shan時shi,大da都dou從cong山shan牆qiang處chu上shang下xia棚peng,容rong易yi將jiang此ci處chu的de棚peng膜mo弄nong破po,而er且qie山shan牆qiang上shang的de棚peng膜mo直zhi接jie接jie觸chu土tu壤rang,更geng容rong易yi受shou到dao侵qin蝕shi,影ying響xiang大da棚peng的de保bao溫wen性xing及ji使shi用yong壽shou命ming。建jian議yi在zai更geng換huan棚peng膜mo後hou,立li即ji在zai兩liang山shan牆qiang上shang覆fu蓋gai舊jiu草cao苫shan,用yong磚zhuan或huo舊jiu水shui泥ni柱zhu子zi壓ya好hao,一yi方fang麵mian可ke防fang止zhi菜cai農nong上shang下xia棚peng時shi將jiang棚peng膜mo踩cai破po,另ling一yi方fang麵mian可ke預yu防fang雨yu雪xue天tian氣qi時shi菜cai農nong上shang下xia棚peng打da滑hua,方fang便bian行xing走zou。
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