Kwiminyaka yakutshanje, kuye kwakho iziqhamo ezingaphezulu nangakumbi zexesha, kwaye ekuqaleni kwentwasahlobo, amaqunube amatsha kunye neepesika ziya kuvela kwimarike.Zivuthwa njani ezi ziqhamo ngaphandle kwexesha lonyaka?Ngaphambili, abantu babeza kucinga ukuba esi siqhamo sikhule kwi-greenhouse.Nangona kunjalo, ngokuqhubeka nokuvezwa kwamaqunube angenanto, iidiliya ezingenambewu, kunye neevatala ezigogekileyo kwiminyaka yakutshanje, abantu baqalisile ukuthandabuza ukuba ezi ziqhamo zibonakala zinkulu kwaye zintsha ngaphandle kwexesha lonyaka zimnandi ngokwenene?Ngaba zikhuselekile ngokwenene?
Inkangeleko yezi ziqhamo zimile kakuhle ngoko nangoko yatsala ingqalelo yabantu.IiHormones nazo ziye zangena kumbono wabantu.Abanye abantu, ukuze banciphise umjikelo wokukhula kwezityalo kwaye bafezekise inzuzo enkulu, basebenzisa amahomoni kwiziqhamo ezininzi zexesha kunye nemifuno ukuze bafezekise ukuvuthwa ngokukhawuleza.Yiyo loo nto ezinye iziqhamo zikhangeleka zintle kodwa zinencasa embi kakhulu.
Ukuziphatha kwabarhwebi abanganyanisekanga ukongeza iihomoni kwimifuno kunye neziqhamo kuye kwenza abantu abaninzi bangazithandi iihomoni, kwaye umlawuli wokukhula kwezityalo ongenathamsanqa akathandwa ngabantu ngenxa yeziphumo ezifanayo kwiihomoni.Ke yintoni kanye kanye isilawuli sokukhula kwezityalo?Ngaba inxulumene neehomoni?Luhlobo olunjani lobudlelwane enalo?Okulandelayo, makhe sithethe malunga nokuba yintoni isilawuli sokukhula kwezityalo kwaye yintoni imisebenzi yayo?
Ukulawula ukukhula kwezityalo kukwenziwa (okanye kwendalo ekhutshwe kwi-microorganisms) i-organic compounds kunye nokulawula ukukhula kunye nophuhliso olufana ne-hormone yendalo yezityalo.Yinto eyenziweyo esetyenziswa kwimveliso yezolimo emva kokuba abantu baqonde ubume kunye nesenzo sehomoni yezityalo zendalo, ukuze kulawulwe ngokufanelekileyo inkqubo yokukhula kwezityalo, ukufezekisa injongo yokuzinzisa isivuno kunye nokwandisa isivuno, ukuphucula umgangatho, kunye nokuphucula. ukumelana nesityalo.Izilawuli eziqhelekileyo zokukhula kwezityalo ziquka i-DA-6, i-Forchlorfenuron, i-nitrite ye-sodium, i-brassinol, i-gibberellin, njl.
Izilawuli zokukhula kwezityalo zineendlela ezininzi zokusetyenziswa kwaye ziyahluka phakathi kwendidi kunye nesityalo ekujoliswe kuso.njengokuba:
Lawula ukuntshula kunye nokulala;khuthaza ukunqunyulwa kweengcambu;ukukhuthaza ukwanda kweeseli kunye nokwahlukana;lawula i-lateral bud okanye i-tillering;Lawula uhlobo lweplanti (uthintelo olufutshane nolunamandla lwendawo yokulala);lawula iintyatyambo okanye isini sendoda nesetyhini, bangela isiqhamo esingenamntwana; Vula iintyatyambo neziqhamo, lawula ukuwa kweziqhamo;lawula ukumila okanye ixesha lokuvuthwa kwesiqhamo;yongeza ukuxhathisa koxinzelelo (ukumelana nezifo, ukunganyangeki kwembalela, ukuxhathisa ityuwa kunye nokumelana nomkhenkce);Ukuphucula ukukwazi ukufunxa isichumiso;ukwandisa iswekile okanye ukutshintsha i-asidi;ukuphucula incasa kunye nombala;Ukukhuthaza ukukhuselwa kwe-latex okanye i-resin;ukuchetywa kwamagqabi okanye ukuqikelela (kuququzelela ukuvuna ngoomatshini);ugcino, njl.
NgokweMimiselo yoLawulo lweZitshabalalisi, izilawuli zokukhula kwezityalo ziphantsi kodidi lolawulo lwezitshabalalisi, kwaye ubhaliso lwezitshabalalisi kunye nenkqubo yolawulo luya kuphunyezwa ngokuhambelana nomthetho.Zonke izilawuli zokukhula kwezityalo eziveliswayo, ezithengiswa kwaye zisetyenziswe eTshayina kufuneka zibhaliswe njengezitshabalalisi.Xa sisebenzisa izilawuli zokukhula kwezityalo, kufuneka sizisebenzise ngokungqinelana nemiyalelo kwaye sithathe amanyathelo afanelekileyo okukhusela ukuthintela ukhuseleko lwabantu, imfuyo kunye namanzi okusela.
Ixesha lokuposa: Jun-08-2023