拚pin縫feng莫mo太tai窄zhai。大da棚peng薄bo膜mo都dou是shi由you若ruo幹gan窄zhai幅fu薄bo膜mo拚pin接jie而er成cheng的de,在zai拚pin接jie時shi要yao增zeng大da粘zhan結jie麵mian積ji,提ti高gao粘zhan結jie強qiang度du。若ruo拚pin縫feng太tai窄zhai,粘zhan結jie麵mian積ji小xiao,用yong力li拉la扯che時shi就jiu會hui造zao成cheng脫tuo縫feng。
用線壓住薄膜。建大棚蓋上薄膜後,應立即用壓膜線壓住。一般每隔1~2個ge棚peng架jia拉la一yi道dao壓ya膜mo線xian,線xian的de鬆song緊jin要yao適shi度du,同tong時shi在zai迎ying風feng一yi麵mian設she立li簡jian易yi防fang風feng障zhang。否fou則ze,既ji薄bo又you輕qing的de大da棚peng薄bo膜mo在zai冬dong季ji大da風feng的de襲xi擊ji下xia很hen容rong易yi被bei吹chui破po,甚shen至zhi被bei大da風feng卷juan起qi。
薄bo膜mo破po損sun要yao修xiu補bu。薄bo膜mo在zai使shi用yong和he保bao存cun過guo程cheng中zhong容rong易yi破po損sun,使shi用yong中zhong破po損sun可ke采cai用yong臨lin時shi修xiu補bu方fang法fa,方fang法fa有you三san。一yi是shi水shui補bu法fa,把ba破po損sun處chu擦ca洗xi幹gan淨jing,剪jian一yi塊kuai比bi破po損sun地di方fang稍shao大da的de無wu破po洞dong的de薄bo膜mo,蘸zhan上shang水shui貼tie在zai破po洞dong上shang,排pai淨jing兩liang膜mo間jian的de空kong氣qi,按an平ping即ji可ke。二er是shi紙zhi補bu法fa,農nong膜mo輕qing度du破po損sun,用yong紙zhi片pian蘸zhan水shui後hou趁chen濕shi貼tie在zai破po損sun處chu,一yi般ban可ke使shi用yong10天左右。三是糊補法,用白麵加水做糨糊,再加入相當於幹麵粉重量1/3dehongtang,shaoweijiarehoujikeyonglaibumo。chaipenghoudebomoyaocaiyongyongjiuxiubufa。zhidijiaohoudebomofashengposun,keyongzhidixiangtongdebomofugaizaishangmian,yongxixianmifenglianjie。yekebaposunchuxijing,yongyikuaishaodadebomogaizhupodong,zaimengshang2~3層(ceng)報(bao)紙(zhi),用(yong)電(dian)熨(yun)鬥(dou)沿(yan)接(jie)口(kou)處(chu)輕(qing)輕(qing)熨(yun)燙(tang),兩(liang)膜(mo)受(shou)熱(re)粘(zhan)貼(tie),冷(leng)卻(que)後(hou)便(bian)會(hui)粘(zhan)在(zai)一(yi)起(qi),此(ci)法(fa)稱(cheng)為(wei)熱(re)補(bu)法(fa)。另(ling)外(wai)有(you)膠(jiao)補(bu)法(fa),把(ba)破(po)洞(dong)四(si)周(zhou)洗(xi)幹(gan)淨(jing),用(yong)毛(mao)刷(shua)蘸(zhan)專(zhuan)用(yong)膠(jiao)水(shui)塗(tu)抹(mo),過(guo)3~5分fen鍾zhong後hou,取qu一yi塊kuai質zhi地di相xiang同tong的de薄bo膜mo貼tie在zai上shang麵mian,膠jiao水shui幹gan後hou即ji可ke貼tie牢lao。熱re補bu法fa和he膠jiao補bu法fa補bu膜mo效xiao果guo好hao,但dan縫feng補bu法fa不bu但dan漏lou氣qi,而er且qie容rong易yi拉la開kai,對dui質zhi地di不bu是shi較jiao厚hou的de薄bo膜mo最zui好hao不bu用yong。
停用時挖坑埋藏。薄膜在收藏期間,要嚴防暴曬、煙熏、huokao,fouze,qishiyongshoumingdadasuoduan。shijianzhengming,dapengbomozuihaodechucunfangfashiwakengmaizang。dapengshengchanjieshuhou,chaixiadebomoyaoxianxijinglianggan,gaihaohuojuanhao,yongjiubomobaoguoqilai,xuanzeturangganshidushizhongdedifangwayigekeng,ranhoubabaoguohaodebomofangjinkengneimaizang。zhuyi,bomodeshangcenglidimiandejuliyingzai30厘米以上。此法可避免農膜在空氣中存放因老化發脆,而縮短使用壽命。
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