Polyethylene filimu ndi thovu ndi zothandiza. Cigawo chachiwiri.

M'nkhani yapita tinakambirana za mfundo yakuti kuwira polyethylene filimu wakhala bwinobwino ntchito ngati ma CD nkhani zosiyanasiyana. Tsopano ife akuunikireni pa phunziro la ntchito ya Chozizwitsa filimu mu dera ena a zochita za anthu - ulimi.

Imodzi mwa ntchito yaikulu ya mpweya kuwira filimu ulimi kuti angatchedwe kusunga kumachitika mikangano ndi greenhouses. Galasi mafelemu amene poyamba munkakhala kutentha kwambiri, ndi mtengo, tsopano sali otchuka monga kale. Kukhazikitsa chimango galasi si kophweka, koma galasi pakokha ukugunda pa zifukwa zina, zinthu zosiyanasiyana anabweretsa ndi mphepo, matalala, chinthu anthu. Zikamera wa abwino kwambiri ndiponso yosavuta pogona mfundo greenhouses ndi greenhouses - wosanjikiza umodzi wa casing zinthu polyethylene filimu komanso si kuthetsa mavuto ambiri. Pansi filimu wamba yozizira ngakhale pansi pa galasi, filimuyi wang'ambidwa ndi kusowa kwa nyengo kapena nyengo ziwiri.

Air kuwira filimu akapitirira okwanira kuchuluka kwa kuwala ultraviolet mu wowonjezera kutentha ndi amasunga zonse kutentha mpweya mkati kutentha ndi, kuteteza amaundana anakhazikitsa zomera. Ngakhale wamba kuwira zojambulazo ndi thovu ndi awiri a 25 mamilimita ndi msinkhu wa 8 mm, ali kutchinjiriza mofanana wosanjikiza njerwa. Ndi kulemera otsika poyerekeza ndi galasi ndi mphamvu apamwamba poyerekeza ndi filimu umodzi-wosanjikiza polyethylene ndi pa nthawi yomweyo, nthawi 80 kwambiri kuposa galasi, ndipo nthawi 120 kwambiri kuposa wamba polyethylene filimu adzateteza mbande zanu anabzala mu wowonjezera kutentha kapena glasshouse kuchokera ozizira kudzera kutchinjiriza wamkulu achilendo kwa iwo. Monga kwenikweni, malinga ndi mtundu kapangidwe monga mtundu wa galasi, kupanga zosavuta mofewa chimateteza galasi. kutentha opaleshoni osiyanasiyana kuchokera madigiri opanda 60 kuphatikiza 80 imene tingakhalebe katundu wawo amalola chithuza filimu molondola kuteteza nkhani za hothouses ndi kumachitika mikangano ndi kusintha kutentha.

Komanso, ngati wapangidwa ndi mpweya kuwira filimu lili wapadera zina kuwala olimba omwe bwino katundu, kupewa makhalidwe oipa a polyethylene kukhudzana ndi cheza ultraviolet choncho kupitiriza ntchito yake panja mpaka zaka zisanu, ntchito chaka chonse. Ndi zimenezi mpweya kuwira filimu transmits 82 peresenti ya cheza cha ultraviolet zofunika wabwino kukula ndi fruiting zomera anabzala, tisaiwale kuti galasi amathera kuli dzuwa. A ofanana kuwala wapadera zowonjezera alipo mu wapadera filimu kutentha otembenuka dzuwa ndi kumatha zigawo zikuluzikulu cheza amene zoipa bwanji mbewu. Wina zowonjezera zothandiza filimu kutentha angatchedwe wapadera hydrophilic zowonjezera (Antifog), iwo ali M'kati mwa chotero filimu kuwira. Anapanga pa pamalo lamkati la greenhouses ndi hothouses madontho madzi ambiri condensed kukhala chifukwa cha kuchepetsa transmittance kuwala. Komanso m'malovu madzi padziko filimu kuganizira dzuŵa, kuchititsa otchedwa "mandala zotsatira" kamene kamayambitsa matenthedwe mantha zomera. Antifog amathandiza kuthetsa mapangidwe m'malovu lalikulu condensate madzi, zipangitsa yunifolomu kufalitsidwa kwa madzi pa filimu wosanjikiza woonda. Madzi ndi anagawira uniformly pamwamba pa filimu ndi pang'onopang'ono umayenda pansi mu nthaka ndipo potero amachepetsa imabwera zomera n'komwe kuchotsa otchedwa "mandala zotsatira".

Chotero mpweya kuwira filimu ntchito monga kulima mafakitale masamba ndi zipatso, makamaka ntchito m'minda kunyumba. Ngati mugwiritsa ntchito mpweya kuwira filimu ndi kuwonjezapo onsewa kutentha wake chifukwa cha zinthu yabwino kwa mbewu zokolola akhoza chinawonjezeka ndi pafupifupi nthawi, ndi mlingo wa zipatso yakucha pa mlungu umodzi kapena iwiri.

Mu gawo wakale uyu ndi tinakambirana za ntchito mpweya kuwira filimu kwa ma CD ndi ulimi. M'nkhani yotsatira tikambirana zina kulepheretsa ntchito chithuza.

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