Mtengo wa tiyi ndi chomera chosatha chamitengo chomwe chimakula mwamphamvu zaka 5-30.Ukadaulo wodulira ukhoza kugawidwa kukhala kudulira kwamitengo yaing'ono ya tiyi ndikudulira mitengo ya tiyi akuluakulu ndi makina odulira mitengo ya tiyi malinga ndi zaka za mtengo wa tiyi.Kudulira ndi njira yofunikira yowongolera ndikulimbikitsa kukula kwamitengo ya tiyi pogwiritsa ntchito njira zopangira.Kudulira kwamitengo yaing'ono ya tiyi kumatha kuwongolera kukula kwa thunthu lalikulu, kulimbikitsa kukula kwa nthambi zam'mbali, kupangitsa kuti ikhale yanthambi komanso yogawa, ndikukulitsa nthambi zolimba za mafupa ndi mawonekedwe abwino a korona okhala ndi kutalika kwake ndi matalikidwe.Kudulira mitengo ya tiyi yokhwima kumapangitsa kuti mitengo ikhale yolimba, masamba ake amakhala aukhondo, kuthyola ndikosavuta, zokolola ndi zabwino zimakhala bwino, komanso moyo wachuma m'munda wolima ukhoza kukulitsidwa.Njira yodulira ili motere:

1. Kudulira kwamitengo yaing'ono ya tiyi

Patatha zaka 3-4 mutabzala, kudulira katatu, nthawi ndi nthawi kuti mphukira za kasupe zimere.

① Kudulira koyamba: Zoposa 75% za mbande za tiyi m'munda wa tiyi zimatalika kuposa 30 cm, tsinde lake ndi loposa 0.3 cm, ndipo pali nthambi 2-3.Chodulidwacho ndi masentimita 15 kuchokera pansi, tsinde lalikulu limadulidwa, ndipo nthambi zimasiyidwa, ndipo zomwe sizikukwaniritsa miyezo yodulira zimasungidwa kuti zidulidwe chaka chotsatira.

② Kudulira kwachiwiri: chaka chimodzi chitatha kudulira koyamba, kudula kumakhala masentimita 30 kuchokera pansi.Ngati kutalika kwa mbande za tiyi ndi zosakwana 35 cm, kudulira kuyenera kuyimitsidwa.

③ Kudulira Kachitatu: Chaka chimodzi pambuyo pa kudulira kwachiwiri, mphukirayo imatalika masentimita 40 kuchokera pansi, imadulidwa mopingasa, ndipo nthawi yomweyo, kudula nthambi za matenda ndi tizilombo ndi nthambi zopyapyala ndi zofooka.

Pambuyo podulira katatu, mtengo wa tiyi ukafika kutalika kwa 50-60 cm ndipo m'lifupi mwake ndi 70-80 cm, kukolola kopepuka kumatha kuyambika.Mtengowo ukakhala wamtali wa 70 cm, ukhoza kudulidwa molingana ndi mtengo wa tiyi wamkulu pogwiritsa ntchito amakina odulira mtengo wa tiyi.

2. Kudulira mitengo yakale ya tiyi

① Kudulira kopepuka: Nthawi iyenera kuchitidwa pambuyo pa kutha kwa tiyi yophukira komanso chisanu chisanachitike, ndipo dera lamapiri la alpine liyenera kudulidwe pambuyo pa chisanu chausiku.Njirayo ndikuwonjezera notch ndi 5-8 cm pamaziko a kudula kwa chaka chatha.

② Kudulira mozama: Kwenikweni, dulani nthambi zopyapyala ndi mapazi a nkhuku pamtunda wa tiyi.Nthawi zambiri kudula theka la makulidwe a masamba obiriwira, pafupifupi 10-15 cm.Kudulira mozama ndi chodulira mtengo wa tiyi kumachitika zaka zisanu zilizonse.Nthawi imachitika pambuyo pa kutha kwa tiyi yophukira.

Zolingalira za Kudulira

1. Nthambi za matenda ndi tizilombo, nthambi zoonda ndi zofooka, nthambi zokoka, nthambi za miyendo, ndi nthambi zakufa mu korona ziyenera kudulidwa kudulira kulikonse.

2. Chitani ntchito yabwino yochepetsera m'mphepete, kuti malo ogwirira ntchito 30 cm asungidwe pakati pa mizere.

3. Phatikizani umuna mutatha kudula.