Kugirango urumamfu, abahinzi bakoresha ibikoresho nuburyo butandukanye.Mugusobanukirwa imbaraga nintege nke za buri gikoresho, abahinzi barashobora gufata ibyemezo byiza kubikorwa byabo kugirango barinde ibyatsi bibi.
Igikoresho kimwe abahinzi bashobora gukoresha mu kurwanya nyakatsi ni ugukoresha ibyatsi.Ubushakashatsi bushya buradufasha kumva neza ibyatsi byica: r-toluene.
Ruridane ni umwe mu miti ikoreshwa cyane muri Amerika.Irashobora gukoreshwa mu kuvura nyakatsi mu bihingwa nk'ibigori, amasaka, ibisheke na turf.Imiti yica urumamfu mukurinda fotosintezeza mubihingwa.
Kimwe na herbiside ikoreshwa kuri dejin, ibyiza ni uko ishobora kugabanya ibikenerwa guhingwa.Usibye kugira ingaruka ku buzima bwubutaka, ubuhinzi bushobora no kongera isuri yubutaka bwagaciro.Kugabanya ubuhinzi birinda isuri kandi bigakomeza imiterere yubutaka bwiza, bityo bikarinda ubutaka bwacu.
Imiti imaze gukoreshwa mu murima, atrazine ibora mu butaka mu kindi kigo cyitwa desethylatrazine (DEA).Iki nikintu cyiza kuko DEA idafite uburozi bwibinyabuzima byo mu mazi kuruta atrazine.
Mu myaka yashize, ikoreshwa rya kuri Tianjin ryaragabanutse.Ariko, nubwo ikoreshwa rya atrazine ryaragabanutse, kwibumbira hamwe kwingirakamaro DEA byagiye byiyongera.
Ryberg, ukora mu bushakashatsi bw’imiterere y’Amerika muri Amerika, arashaka kumenya izindi mpamvu usibye imikoreshereze igira ingaruka ku myororokere y’ibyatsi mu migezi.
Guhindura cyane kwa atrazine muri DEA ni mubikorwa bya mikorobe yubutaka-nka fungi na bagiteri.Kubwibyo, uko atrazine ihuza byinshi na mikorobe yubutaka, umuvuduko wo kubora byihuse.
Ryberg yagize ati: "Dushingiye ku bushakashatsi bwabanje, twahanuye ibintu bigira ingaruka ku kwibumbira mu migezi."Ati: “Muri byo harimo amasoko y'amazi, ikirere, ikirere ndetse n'ahantu ho gutera ibigori mu bikorwa byo gucunga.”
Ryberg yabisobanuye agira ati: "Mu bushakashatsi bwacu, twakoresheje amakuru ariho yakwirakwiriye mu turere twinshi tw'igihugu kuva 2002 kugeza 2012".Noneho, koresha icyitegererezo kugirango usesengure amakuru kandi ugerageze guhanura kw'ikipe kubitera inzira muri r na DEA.
Mu myaka ya za 90, amabwiriza mashya yakemuye ikibazo cy’umwanda w’amazi.Aya mabwiriza yagabanije ikoreshwa ry’imiti ku bihingwa, ndetse abuza gukoresha ration hafi y’iriba.Ikigamijwe ni ukugabanya ubwinshi bwibintu byinjira mumazi.
Ryberg yagize ati: “Kwibanda ku mikoreshereze n'imikoreshereze byerekana ko amabwiriza ya kera yo gutesha agaciro, cyane cyane mu burengerazuba bwo hagati, yagenze neza.”“Ibitesha agaciro byinshi byacitse muri DEA mbere yuko yinjira mu mugezi.”
Nubwo uduce twatewe ibigori twiyongereye hagati ya 2002 na 2012, ubushakashatsi bwerekanye ko ikoreshwa rya atrazine ryagabanutse mu bice byinshi by’Amerika.
Ubushakashatsi bwa Ryberg bwagaragaje kandi ko ahantu humye hatarimo amazi ya tile, ihinduka rya atrazine ryihuta.Imiyoboro y'amazi irashobora gushyirwaho munsi yubutaka mu murima kugirango ifashe amazi no kwirinda umwuzure.Imiyoboro y'amazi imeze nk'imvura igwa kumurima.
Kubera ko imiyoboro y'amazi ishobora gufasha amazi yo mu murima gutembera vuba binyuze mu miyoboro yo munsi y'ubutaka, amazi afite igihe gito cyo guhura n'ubutaka.Kubwibyo, mikorobe yubutaka ikenera igihe gito cyo kuvana amazi muri DEA mumigezi yegeranye mbere yuko amazi abora atrazine muri DEA.
Ubu bushakashatsi bivuze ko urwego rwa Tianjin rushobora guhura nibibazo byinshi mugihe kizaza.Nkuko abahinzi biteze imihindagurikire y’ikirere hamwe n’imiterere y’imirima itose, kugira ngo bahinge ibihingwa mu bihe byiza by’ubutaka, hashobora gukenerwa ibikoresho byinshi byo kuvoma amazi.
Urebye ahazaza, Ryberg yizeye gukurikirana imiti yica udukoko dushingiye.Ryberg yabisobanuye agira ati: “Gukurikirana ni ngombwa kugira ngo twumve uburyo bwo kwangiza no gutwara imiti yica udukoko.”
Abahinzi bazakomeza kumenyera ibidukikije bihinduka, harimo n’ibyatsi bibi.Imikoreshereze y’imiti yica udukoko izahinduka, kandi gukurikirana imiti mishya yica udukoko cyangwa imiti yica udukoko mu bidukikije ni ikibazo gikomeje.
Ibikoresho byatanzwe na American Academy of Agronomy.Icyitonderwa: Urashobora guhindura imiterere nuburebure bwibirimo.
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