Kwiminyaka yakutshanje, bekukho iziqhamo ezininzi ezingakhange zisetyenziswe ngexesha lonyaka, kwaye ekuqaleni kwentwasahlobo, iistrawberry ezintsha kunye neepesika ziya kuvela kwimarike. Ezi ziqhamo zivuthwa njani ngexesha lonyaka? Ngaphambili, abantu bebecinga ukuba esi sisiqhamo esikhuliswe kwigreenhouse. Nangona kunjalo, ngokuqhubeka kokuvezwa kweestrawberry ezingenanto, iidiliya ezingenambewu, kunye neevatala ezigugileyo kwiminyaka yakutshanje, abantu baye baqala ukuthandabuza ukuba ezi ziqhamo zibonakala zinkulu kwaye zintsha ezingakhange zisetyenziswe ngexesha lonyaka zimnandi ngokwenene? Ngaba zikhuselekile ngokwenene?
Ukuvela kwezi ziqhamo zingaqhelekanga kwatsala ingqalelo yabantu ngoko nangoko. Iihormones nazo zingene embonweni wabantu. Abanye abantu, ukuze banciphise umjikelo wokukhula kwezityalo kwaye bafumane inzuzo enkulu, basebenzisa iihormones kwiziqhamo nemifuno emininzi engaphandle kwexesha ukuze bavuthwe ngokukhawuleza. Yiyo loo nto ezinye iziqhamo zibukeka zilungile kodwa zinencasa embi kakhulu.
Ukuziphatha kwabathengisi abangathembekanga abongeza iihomoni kwimifuno nakwiziqhamo kwenze abantu abaninzi bangazithandi iihomoni, kwaye umlawuli wokukhula kwezityalo ongenathamsanqa naye akathandwa ngabantu ngenxa yeziphumo zakhe ezifanayo neehomoni. Ngoko ke yintoni kanye kanye umlawuli wokukhula kwezityalo? Ingaba inxulumene neehomoni? Luhlobo luni lolwalamano enalo? Okulandelayo, masithethe ngokuba yintoni umlawuli wokukhula kwezityalo kwaye yintoni imisebenzi yawo?
Ulawulo lokukhula kwezityalo yi-organic compounds eyenziweyo (okanye yendalo ekhutshwe kwiintsholongwane) enolawulo lokukhula nophuhliso olufana ne-Plant hormone yendalo. Yinto eyenziweyo esetyenziswa kwimveliso yezolimo emva kokuba abantu beyiqondile indlela esebenza ngayo i-hormone yezityalo yendalo, ukuze kulawulwe ngempumelelo inkqubo yokukhula kwezityalo, kufezekiswe injongo yokuzinzisa isivuno kunye nokwandisa isivuno, kuphuculwe umgangatho, kwaye kuphuculwe ukumelana nezityalo. Abalawuli bokukhula kwezityalo abaqhelekileyo baquka i-DA-6, i-Forchlorfenuron, i-sodium nitrite, i-brassinol, i-gibberellin, njl.
Abalawuli bokukhula kwezityalo banemisebenzi emininzi kwaye bayahluka phakathi kohlobo lwesityalo kunye nesityalo ekujoliswe kuso. Umzekelo:
Lawula ukuhluma nokungavuthi; khuthaza ukuhluma kweengcambu; khuthaza ukwandiswa kweeseli kunye nokwahlukana kwazo; lawula ukuhluma kwehlumela ecaleni okanye ukuhluma; lawula uhlobo lwesityalo (ukuthintela ukuhlala ixesha elifutshane neliqinileyo); lawula ukudubula kweentyantyambo okanye isini sendoda nesetyhini, bangela iziqhamo ezingenabantwana; Vula iintyatyambo kunye neziqhamo, lawula ukuwa kweziqhamo; lawula imilo okanye ixesha lokuvuthwa kweziqhamo; phucula ukumelana noxinzelelo (ukuchasana nezifo, ukumelana nembalela, ukumelana netyuwa kunye nokumelana nokubanda); phucula amandla okufunxa isichumiso; nyusa iswekile okanye utshintshe i-asidi; phucula incasa kunye nombala; khuthaza ukukhutshwa kwe-latex okanye i-resin; ukususwa kwamaqabunga okanye uqikelelo (ukulungiselela ukuvunwa ngoomatshini); ukugcinwa, njl.
NgokweMimiselo yoLawulo lweeNtsholongwane, abalawuli bokukhula kwezityalo bakwicandelo lolawulo lweentsholongwane, kwaye inkqubo yokubhalisa nokulawula iintsholongwane kufuneka isetyenziswe ngokuhambelana nomthetho. Bonke abalawuli bokukhula kwezityalo abaveliswayo, abathengiswayo nabasetyenziswa eTshayina kufuneka babhaliswe njengezibulali-zinambuzane. Xa sisebenzisa abalawuli bokukhula kwezityalo, kufuneka sizisebenzise ngokuhambelana nemiyalelo kwaye sithathe amanyathelo okukhusela afanelekileyo ukuthintela ukhuseleko lwabantu, imfuyo kunye namanzi okusela.
Ixesha lokuthumela: Juni-08-2023