Ndipo inu mukudziwa chiyani masamba kutembenukira nkhaka chikasu?

Nthawi zambiri eni ziwembu payekha amakakamizidwa kupulumutsa mbewu yake, amene angathe "kufa" chifukwa cha zovuta zina, monga zinthu kusintha nyengo, zomera tizirombo ndi zambiri. Nthawi zambiri wamaluwa muyenera kusamala monga masamba a nkhaka limapezeka yellowness. Kumene, ichi ndi chizindikiro kuti masamba "kudwala" ndipo akufunika thandizo.

Komabe, sikuti aliyense amadziwa za chifukwa masamba kutembenukira nkhaka chikasu. Akatswiri kufotokoza zodabwitsazi zifukwa zambiri. Inde, chifukwa masamba kutembenukira chikasu nkhaka? Choyamba, chifukwa chosowa chinyezi pa kutentha. Kachiwiri, chifukwa kutentha kwambiri otsika usiku, nthawi zambiri limodzi ndi chisanu. Achitatu, ndi "zipatso onyenga" angakhale kuti alibe mchere ndi mme- zinthu. Chachinayi, nkhaka zikhoza kugwida ndi matenda a mafangasi ndi zamoyo zina parasitic.

Taonani zina mwa zifukwa zimene masamba kutembenukira nkhaka chikasu mwatsatanetsatane.

An nyakulima odziwa amadziwa kuti masamba pamwamba amakonda chinyezi, ndi pang'ono akusowa ake kungachititse kuti chikasu thumba losunga mazira ndi zipatso. Zotsatira chomwecho angachititse kusankha zolakwika ndi kutentha kwa madzi ulimi wothirira.

Choncho, akatswiri kulengeza ntchito kuthirira nkhaka madzi ofunda. Frosts, nthawi zambiri zimachitika m'chaka oyambirira, ungathenso chifukwa cha kusintha mtundu ambiri m'mimba lapansi.

N'chifukwa chiyani masamba kutembenukira nkhaka chikasu nthawi zina? Chomera pamwamba mokwanira atengeke matenda osiyanasiyana, mwachitsanzo, monga powdery cinoni. Choyamba, masamba anapanga yamawangamawanga ka mtundu mbandakucha, ndiye iwo kuwonjezera kukula ndi kusintha mu yamawangamawanga woyera. Patapita nthawi zina amakhala achikasu "chokongoletsera", ndiye pepala Dries. Ichi ndi chizindikiro choonekeratu kuti nkhaka anadabwa matenda a mafangasi. Vutolo kuwonjezera chakuti chamoyo ndi wakhama kwambiri, kotero mwayi kuti chaka chamawa adzaoneka kachiwiri, ndi mkulu. Pofuna kuchepetsa mtundu uwu chiopsezo, akatswiri amalangiza kuchita mbewu kasinthasintha ndondomeko ndi kusankha mitundu ndi chitetezo chokwanira mkulu matenda a mafangasi.

Nthawi zambiri ngakhale mbande nkhaka masamba kutembenukira wachikasu. Kodi izi zikutanthauza chiyani? chakuti mbewu alibe mchere zokwanira, mu asafe makamaka. Kuti athetse vutoli, akatswiri amalangiza kugwira fetereza. Monga ulamuliro, izo zachitika kanayi pa nyengo. Pa maluwa (1 nthawi) ndi pa fruiting (3) mbewu zina apindula ndi urea yothetsera wa sulphate potassium zikuchokera superphosphate ndi mullein.

Wina woopsa bacteriological matenda ndi "zipatso zonama" lili Fusarium mufuna. Pa poizoni chomwecho opangidwa ndi bowa, kotero kwambiri atagonjetsa mu capillaries kuti yomweyo nkhaka kutembenukira masamba chikasu ndi zipatso. Potsilizira pake, zomera chakula kutentha ndi, afa.

Ankaona masamba zambiri anakhudzidwa ndi muzu zowola. Tatchulawa "matenda" ndi loopsa kwambiri kuti: woyamba kuchokera nkhaka kutembenukira chikasu masamba m'munsi, ndipo kenako onse.

Polimbana ndi matenda a mafangasi akatswiri kulengeza ntchito mankhwala.