M'zaka zingapo zapitazi makina ochulukira adayikidwa m'mafamu a bowa pogwiritsa ntchito vacuum yozizira ngati njira yozizirira mwachangu bowa.Kukhala ndi njira zoziziritsira moyenera ndikofunikira pakusamalira mbewu zonse zatsopano, koma kwa bowa kumakhala kofunika kwambiri.Ngakhale kuti bowa wofuna kudya zakudya zopatsa thanzi komanso wokoma amakulabe, bowa wodziwika bwino amabweretsa zovuta kwa alimi chifukwa chaufupi wawo wa alumali poyerekeza ndi zokolola zina.Akakololedwa, bowa amatha kudwala kwambiri mabakiteriya.Amatha kutaya madzi m'thupi ndikuwonongeka mwachangu pokhapokha atazizidwa mwachangu ndikusungidwa pamalo abwino osungira.Kuzizira kwa vacuum kumapereka yankho labwino kwambiri kwa alimi kuti azitha kuzizira bwino bowa.
Kufunika kwa kutentha koyenera ndi kuwongolera chinyezi kumagwira ntchito yofunika kwambiri mutatha kukolola bowa, kuonetsetsa kuti bowa ndi wabwino komanso nthawi yayitali.
Kufunika kozizira koyambirira
Kuzizirira kumatanthauza kuchotsa msanga kutentha kwa m'munda (nthawi zambiri pafupifupi 80 - 85%) mbeu itangokolola.Kutentha kwa m'munda kungatanthauzidwe ngati kusiyana kwa kutentha pakati pa kutentha kwa mbewu zomwe zakololedwa ndi kutentha koyenera kosungirako.
Kuziziritsa ndi gawo lofunika kwambiri mu nthawi yokolola pambuyo pokolola chifukwa bowa amapeza nkhawa pambuyo podula.Izi zimabweretsa kutuluka kwa mpweya (kutuluka thukuta, zomwe zimapangitsa kuchepa thupi komanso kumanga chinyezi pakhungu la zokolola) ndi kupuma kwakukulu (kupuma = kuwotcha shuga), zomwe zimapangitsa kuti moyo uwonongeke, koma panthawi imodzimodziyo kuwonjezeka kwa thupi. kutentha kwa mankhwala, makamaka pamene atanyamula mwamphamvu.Bowa pa 20˚C amatulutsa mphamvu yotentha yochulukirapo 600 % poyerekeza ndi bowa pa 2˚C!Ichi ndichifukwa chake ndikofunikira kuti ziziziritsidwe mwachangu komanso moyenera.
Kupuma ndi kupuma kumatha kuchepetsedwa kwambiri ndi kuzizira koyambirira.Pafupifupi zonse ziwiri zimatha kuchepetsedwa ndi 4, 5 kapena kupitilira apo, ngati zitaziziritsidwa kuchokera kukolola (pafupifupi pa 20 - 30 ⁰C / 68 - 86 ⁰F pansi mpaka pansi pa 5 ⁰C / 41⁰F).Kutentha koyenera kumatanthauzidwa ndi zinthu zambiri, monga zokolola kuti ziziziziritsidwa ndi masitepe omaliza kukolola potsatira kuziziritsa kusanachitike.
Nthawi yotumiza: Jul-21-2021