I-University City, ePennsylvania — Ukolweni wasebusika utshalwa kabanzi emapulazini ezinkukhu esifundeni saseMid-Atlantic e-United States ukuze kukhiqizwe okusanhlamvu kanye notshani. Okusanhlamvu kusetshenziswa njengokudla kwezilwane, kanti utshani busetshenziswa njengemibhede.Ukusetshenziswa kwabalawuli bokukhulakungandisa isivuno sokusanhlamvu ngokucindezela ukukhula okuqondile nokunciphisa ingozi yokuhlala, isimo esinciphisa kakhulu isivuno sokusanhlamvu. Kodwa-ke, umphumela wabalawuli bokukhula emvunweni kanye nekhwalithi yotshani awukacaci. Ngakho-ke, ithimba locwaningo elivela ePennsylvania State University lenze ucwaningo lokuhlola imiphumela yokuhlanganisa abalawuli bokukhula namazinga ahlukene okufaka umanyolo we-nitrogen. Ucwaningo lwenziwe ezivivinyweni zasensimini kakolweni ebusika eRussell E. Larson Agricultural Research Center ePennsylvania State University.
"Abalimi abafuni ukuthi ukolweni ukhule kakhulu futhi uhlale, okulimaza okusanhlamvu, ngakho abalimi abaningi sebekusebenzise isikhathi eside."abalawuli bokukhula kwezitshalo,"Kusho uDaniela Carrijo, uprofesa ohlangene wokukhiqiza okusanhlamvu kanye nochwepheshe wokwandisa eKolishi Lezesayensi Yezolimo ePennsylvania State University. "Siyazi ukuthi abalawuli bokukhula kwezitshalo banganciphisa ingozi yokuhlala futhi bandise isivuno sokusanhlamvu, kodwa abalimi kanye nabanye abathintekayo bafuna ukwazi umthelela wabo ekuvuneni kanye nekhwalithi yotshani. Lona umsebenzi onemiphumela engokoqobo, futhi sihlole umkhiqizo ovame ukusetshenziswa obizwa ngokuthi i-triccyclazole ethyl ester ukuze sithole umthelela wawo ekuvuneni kanye nekhwalithi yotshani, okubalulekile futhi emapulazini axubile."
Phakathi neminyaka engaphezu kwemibili, abacwaningi bahlole inhlanganisela eyisishiyagalolunye yamazinga amathathu okusetshenziswa komanyolo we-nitrogen kanye nokwelashwa okuthathu kwe-tricyclazole ethyl ester. Bathole ukuthi i-tricyclazole ethyl ester yehlisa ukuphakama kwesitshalo kodwa ayizange inyuse ukujiya kwesiqu. Ukwelashwa okubili kwe-tricyclazole ethyl ester kwaholela ekunciphiseni okungu-8% ekuvuneni kotshani, kanti ukwelashwa okukodwa kwehlisa isivuno sotshani ngo-5%, yize lo mehluko wawungabalulekile ngokwezibalo. Bathole nokuthi i-tricyclazole ethyl ester ayizange ishintshe ikhwalithi yotshani noma ukumuncwa kwamanzi—okusho ukuthi ayizange ithinte ikhono lotshani lokugcina amanzi, ngakho-ke utshani bungasetshenziswa njengemibhede yezilwane. Abacwaningi babike ukuthi indawo yokuhlala ayizange ibonwe kunoma yiziphi iziza zokuhlola, nokuthi ukwanda kokusetshenziswa komanyolo we-nitrogen kuthuthukise okuqukethwe kwamaprotheni okusanhlamvu.
"Imiphumela yethu ixubile—sithole ukuthi i-triccyclazole ethyl ester inganciphisa kancane isivuno sotshani, kodwa ayithinti ikhwalithi yotshani noma isivuno sokusanhlamvu," kusho uCarrijo. "Abalimi abasebenzisa i-triccyclazole ethyl ester kufanele bacabangele izinzuzo nezingozi: kungasiza ekunciphiseni ukuhlala (uma lokhu kuyinkinga), kodwa kunganciphisa kancane isivuno sotshani. Lokhu kuhwebelana kubaluleke kakhulu uma utshani bungumkhiqizo obalulekile wepulazi futhi busetshenziswa njengemibhede."
Umbhali wokuqala walolu cwaningo, uLarissa Correa, wayengumuntu ocwaningayo ovakashile eMnyangweni Wezesayensi Yezitshalo ePennsylvania State University. Njengamanje ungumcwaningi ofundela iziqu zobudokotela eNyuvesi yaseWisconsin-Madison. URonald Hoover, umqondisi omkhulu wohlelo oluhlangene eMnyangweni Wesayensi Yezitshalo, naye uhlanganyele kulolu cwaningo.
Ucwaningo luxhaswe yiSyngenta kanye neNational Institute of Food and Agriculture yoMnyango Wezolimo wase-US.
Isikhathi sokuthunyelwe: Meyi-13-2026
