Nthawi zina njira zosavuta kuzimvera zimamveka bwino.
Kutentha ndi chinyezi - kusunga bwino uku kungakhale gwero lanthawi zonse la kulimbana kwa opanga wowonjezera kutentha. Pamene nthawi ya chilimwe imayenda mozungulira, nthawi zina njira zosavuta za mpweya wabwino akhoza kupanga nzeru kwambiri pa nthawi ndi ndalama.
Leigh Coulter, pulezidenti wa GGS Structures, wa ku Vineland, Ont, anati: “Kulowetsa mpweya mwachibadwa ndiyo njira yotchuka kwambiri yopezera mpweya kwa alimi amakono a greenhouses ku Northern Hemisphere. Monga akufotokozera, mpweya wachilengedwe umakondanso malo obiriwira olumikizidwa ndi ngalande komanso pansi ndi pansi, pomwe mpweya wamtunduwu umatha kuchita bwino. Kuti mumvetse chifukwa chake, Coulter ajambula chithunzi chenicheni chomwe chikuwonetsedwa apa.
"Zolowera padenga zimagwira ntchito pamutu waukulu wa chimney. Mpweya wotentha mkati mwa wowonjezera kutentha umakwera mwachibadwa. Poyika polowera mbali ya leeward, mphepo yodutsa pamwamba pa mpweyawo imapangitsa kuti mpweya wotentha utuluke mu wowonjezera kutentha. Mitsempha yomwe ili pafupi ndi nthaka kumbali ya mphepo imalola mpweya woziziritsa wakunja kulowa m’malo mwa mpweya wotentha umene ukutulutsidwa.”
Zomangidwa kuchokera kuzitsulo zazitali, kutalika kwa zinyumba zolumikizidwa ndi ngalande kumapangitsa kuti chimney chikhale chokulirapo. Ma greenhouses osasunthika amatha kugwiritsa ntchito polowera padenga komanso mbali zonse zopindika kuti awonjezere mpweya wabwino wachilengedwe. Mu wowonjezera kutentha wopangidwa bwino, zotsatira zake zimakhala zoziziritsa mkati mwa mbewu, chifukwa cha chinthu chofanana.
Izi zikunenedwa, pali nthawi zina pomwe kupuma kwachilengedwe sikungakhale koyenera.
"Ngati mukufuna kuti kutentha kwa wowonjezera kutentha kukhale kocheperako komanso komwe kumakhala kowuma, ndiye kuti kuziziritsa kwa fan ndi pad kumakhala bwino kuposa mpweya wabwino wachilengedwe," Coulter akufotokoza. "Koma fani ndi pad sizigwira ntchito bwino m'malo achinyezi, motero mpweya wabwino wachilengedwe umakhala wabwinoko pakachitika izi."
Kutentha kwachilimwe kusanayambike, Coulter amalimbikitsa kuyang'ana momwe mpweya umatuluka kuchokera ku mpweya, kukhala ndi zitsulo zopaka mafuta ndi kuyang'anira bwino. "Kuti muone momwe mpweya umayendera mutha kugwiritsa ntchito mabomba a utsi amitundu ngati njira yotsika yaukadaulo kuti muwone momwe mpweya umayendera kudzera mu wowonjezera kutentha. Njira imeneyi ingagwiritsidwenso ntchito powona malo amene mpweya umatuluka umene ungafune kuuchotsa kapena kuchepetsa nyengo yachisanu isanakwane.”
Iye akugogomezera kuti mpweya wabwino ndi gawo limodzi lokha la kayendetsedwe ka chilengedwe. “Chinyezi, kutentha ndi kuwala komanso kuchuluka kwa kuwala zimathandiziranso kudziwa momwe ma greenhouse amagwirira ntchito. Kompyuta yabwino yosamalira zachilengedwe idzatengapo kanthu kuchokera kumadera akunja ndi malo omwe akukula ndikuzindikira zomwe ziyenera kusinthidwa kuti zisungidwe malo abwino kwa mbewuyo. ”
Kwa iwo omwe akuyang'ana kubwezeretsanso nyumba zobiriwira zakale, Coulter akuti atha kuwonjezera mpweya wabwino m'malo obiriwira ambiri akale kwazaka zambiri.
“Chomwe chimafunika n’chakuti tidziwe tsatanetsatane wa kamangidwe ka nyumba yotenthetsera kutentha yomwe ilipo, malo oti mudziwe zanyengo, ndi mbewu zimene mukulima. Kuchokera kumeneko tikhoza kupanga pulani ndi wolimayo. "
M'magazini ya January ya Greenhouse Canada, owerenga anadziwitsidwa Lingaliro la 'Kukula mwa Kupatsa Mphamvu Zomera' (GPE). Kuphatikiza luso la wolima ndi chidziwitso cha physiology ya zomera, cholinga cha GPE ndikukwaniritsa bwino khalidwe la zomera kumalo obiriwira obiriwira mwa kusunga miyeso yovuta yokhudzana ndi mphamvu, madzi, CO.2 ndipo zimatengera mkati mwa mbewu.
Miyezo iyi imatha kuyang'aniridwa ndi masensa, kuphatikiza miyeso ya mbewu, kenako kutanthauziridwa molingana ndi physiology ya zomera ndi physics kuti zithandizire kukonza bwino mbewu.