University City, Pennsylvania — Gorosi remuchando rinorimwa zvakanyanya mumapurazi ehuku mudunhu reMid-Atlantic muUnited States kuti rigadzirwe zviyo nemashanga. Zviyo zvinoshandiswa sechikafu chemhuka, uye mashanga anoshandiswa semagumbeze.Kushandiswa kwevatongi vekukurainogona kuwedzera goho rezviyo nekudzvinyirira kukura kwakamira uye kuderedza njodzi yekudzikama, mamiriro ezvinhu anoderedza zvakanyanya goho rezviyo. Zvisinei, mhedzisiro yevanodzora kukura pagoho uye hunhu hwehuswa haisati yanyatsojeka. Nokudaro, timu yekutsvagisa kubva kuPennsylvania State University yakaita ongororo yekuongorora mhedzisiro yekubatanidza vanodzora kukura nemazinga akasiyana ekushandisa nitrogen fertilizer. Chidzidzo ichi chakaitwa mumiedzo yemunda wegorosi wechando paRussell E. Larson Agricultural Research Center paPennsylvania State University.
"Varimi havadi kuti gorosi rikure zvakanyanya uye rigare, izvo zvinokuvadza zviyo, saka varimi vazhinji vagara vachishandisa."vanodzora kukura kwezvirimwa,"anodaro Daniela Carrijo, purofesa wekugadzira zviyo nekuwedzera ruzivo muKoreji yeSainzi dzezvekurima paPennsylvania State University. "Tinoziva kuti vanodzora kukura kwezvirimwa vanogona kuderedza njodzi yekugadzika uye kuwedzera goho rezviyo, asi varimi nevamwe vane chekuita nazvo vanoda kuziva kukanganisa kwavo goho uye kunaka kwehuswa. Iri ipurojekiti ine zvazvinoreva, uye takaedza chigadzirwa chinowanzo shandiswa chinonzi tricyclazole ethyl ester kuti tione kukanganisa kwacho pagoho uye kunaka kwehuswa, izvo zvakakoshawo kumapurazi ane zvirimwa zvakasiyana."
Mukati memakore anopfuura maviri, vaongorori vakaedza musanganiswa mipfumbamwe yehuwandu hwekushandisa nitrogen fertilizer nhatu uye mishonga mitatu yetricyclazole ethyl ester. Vakaona kuti tricyclazole ethyl ester yakaderedza kureba kwemiti asi haina kuwedzera ukobvu hwehunde. Mishonga miviri yetricyclazole ethyl ester yakakonzera kudzikira kwe8% mukubereka uswa, nepo kurapwa kamwe chete kwakaderedza goho reuswa ne5%, kunyangwe musiyano uyu wakanga usina kukosha. Vakaonawo kuti tricyclazole ethyl ester haina kuchinja kunaka kweuswa kana kunwa mvura—zvichireva kuti haina kukanganisa kugona kweuswa kuchengetedza mvura, saka uswa hwacho hwaigona kushandiswa senzvimbo yekurara yemhuka. Vaongorori vakataura kuti kugara hakuna kuonekwa mune chero nzvimbo dzekuyedza, uye kuti kuwedzera kushandiswa kwenitrogen fertilizer kwakavandudza huwandu hweprotein yegorosi.
"Zvatakawana zvakasanganiswa—takaona kuti tricyclazole ethyl ester inogona kuderedza goho remashanga zvishoma, asi haikanganisi kunaka kwehuswa kana goho rezviyo," akadaro Carrijo. "Varimi vanoshandisa tricyclazole ethyl ester vanofanira kuyera zvakanakira nezvakaipira: zvinogona kubatsira kuderedza kugara (kana iri dambudziko), asi zvinogona kuderedza goho remashanga zvishoma. Kuchinjana uku kwakakosha zvikuru kana huswa huri chigadzirwa chakakosha chepurazi uye huchishandiswa semubhedha."
Munyori wekutanga wechidzidzo ichi, Larissa Correa, aive muongorori anoshanya muDhipatimendi reSainzi yeZvirimwa paPennsylvania State University. Parizvino inyanzvi yezvedzidzo yepamusoro paYunivhesiti yeWisconsin-Madison. Ronald Hoover, mukuru wechirongwa muDhipatimendi reSainzi yeZvirimwa, akatorawo chikamu muchidzidzo ichi.
Tsvagiridzo iyi yakatsigirwa nemari neSyngenta pamwe neNational Institute of Food and Agriculture yeDhipatimendi rezvekurima reUS.
Nguva yekutumira: Chivabvu-13-2026
