Ni iki cyakorwa niba mancozeb itera uburozi bw'ibinyabuzima? Kurikiza izi ngingo ntuzongera kugira ubwoba.

Abahinzi benshi bagiye bagira uburozi bw’ibimera iyo bakoresha mancozeb bitewe no guhitamo nabi umusaruro cyangwa igihe cyo kuwukoresha kitari cyo, urugero rwawo, n’inshuro bawukoresha. Ibihe byoroheje bitera kwangirika kw’amababi, fotositesiyo idakora neza, ndetse n’imikurire mibi y’ibihingwa. Mu bihe bikomeye, utudomo tw’imiti (utudomo tw’umukara, utudomo tw’umuhondo, utudomo tw’umukungugu, nibindi) tugaragara ku buso bw’imbuto no ku buso bw’amababi, ndetse bigatera utudomo twinshi tw’imbuto, imiterere y’imbuto ishaje, n’ingese y’imbuto, bigira ingaruka zikomeye ku gaciro k’ubucuruzi bw’imbuto, bigatera igihombo gikomeye ku bahinzi. Muri make, byagaragaye ko impamvu nyamukuru zitera uburozi bw’ibimera ari izi zikurikira:

1. Ibicuruzwa bya mancozeb bitujuje ubuziranenge bitera uburozi bwinshi mu bimera.

Mancozeb yujuje ibisabwa igomba kuba ari ubwoko bwa manganese-zincaside ya mancozebbikorwa hakoreshejwe uburyo bwo gukurura ubushyuhe. Hari ibigo bito n'abakora amayeri ku isoko ibicuruzwa byabo bidashobora kwitwa mancozeb mu by'ukuri. Bitewe n'ubushobozi bw'ibikoresho n'ikoranabuhanga, igice gito cy'ibicuruzwa by'ibi bigo bito ni cyo gishobora guhuzwa na mancozeb, kandi inyinshi muri byo ni uruvange rwa mancozeb na zinc salt. Ibi bicuruzwa bifite ibara ryijimye, umwanda mwinshi, kandi bishobora kwangirika iyo bihuye n'ubushuhe n'ubushyuhe. Gukoresha ibi bicuruzwa bishobora cyane gutera uburozi bw'ibimera. Urugero, gukoresha mancozeb idakomeye mu gihe cy'imbuto nto z'amapera bishobora kugira ingaruka ku irangi ry'ibishishwa ku buso bw'imbuto, bigatera kwangirika kw'igishishwa cy'imbuto ndetse bigatera utudomo tw'uruziga, dukura uko imbuto zikura.

2. Kuvanga imiti yica udukoko mu buryo butagaragara bigira ingaruka ku mutekano w'ikoreshwa rya mancozeb.

Mu kuvanga imiti yica udukoko, ibintu byinshi nk'ibintu bikora, imiterere y'umubiri n'iya chimique, ingaruka zo kuyirwanya, n'udukoko twibasira bigomba kwitabwaho. Kuvanga ubuhumyi ntibigabanya gusa imikorere ahubwo byongera ibyago byo kwangirika kw'ibinyabuzima. Urugero, uburyo busanzwe bwo kuvanga mancozeb n'imiti yica udukoko ya alkaline cyangwa ibigize ibyuma biremereye birimo umuringa bishobora kugabanya imikorere ya mancozeb. Kuvanga mancozeb n'ibikomoka kuri fosifate bishobora gutuma habaho ihindagurika ry'amazi no kurekura gaze ya hydrogen sulfide.

3. Guhitamo nabi igihe cyo gutera imiti no guhindura uko ikoreshwa mu gutera imiti bigabanya ibyago byo kwangirika kw'imiti.

Mu ikoreshwa nyaryo, abahinzi benshi bakunda kugabanya igipimo cyo gushonga ku gipimo cyavuzwe mu mabwiriza cyangwa bagakoresha igipimo kiri hejuru cyane y’icyasabwe kugira ngo bongere imikorere. Ibi byongera ibyago byo kugira uburozi bw’ibimera. Muri icyo gihe, abahinzi bavanga imiti myinshi yica udukoko kugira ngo bahuze imikorere, bitondera gusa amazina atandukanye y’ubucuruzi ariko bakirengagiza ibintu bikora n’ibirimo. Mu gihe cyo kuvanga, ingano y’ikintu kimwe gikora iraterana, kandi igipimo cy’umuti wica udukoko kiyongera mu buryo butaziguye, kikarenga igipimo cyizewe kandi kigatera uburozi bw’ibimera. Gukoresha imiti yica udukoko mu gihe cy’ubushyuhe bwinshi byongera imikorere y’umuti wica udukoko. Gutera imiti yica udukoko ifite ubushyuhe bwinshi byongera ibyago byo kugira uburozi bw’ibimera.

4. Ubwiza bw'umuti bugira ingaruka ku mutekano wa mancozeb.

Ubuto, igipimo cyo guhagarika, ubushobozi bwo kuvoma, no gufatana kw'uduce twa mancozeb bigira ingaruka ku musaruro n'umutekano w'umusaruro. Ibicuruzwa bya mancozeb by'ibigo bimwe na bimwe bifite inenge mu bimenyetso bya tekiniki nko kuba bito, igipimo cyo guhagarika, n'ubushobozi bwo kuvoma bitewe n'imbogamizi mu mikorere. Mu gihe cyo kubikoresha, ibintu byo gushyira imiti yica udukoko mu byiciro no kuyifunga ni ibisanzwe. Gutera imiti yica udukoko mu gihe cyo gutera imiti bituma ingano yayo idahindagurika mu gihe cyo gutera imiti, bigatuma ingano yayo idahagije mu gihe cyo gutera imiti ku bwinshi. Gufatana nabi kw'imiti yica udukoko, hamwe n'amazi menshi akoreshwa mu gutera imiti, bituma umuti udakwirakwira neza ku buso bw'amababi, bigatuma umuti wica udukoko wirunda ku mitwe y'amababi no ku buso bw'imbuto, bigatuma ingano yawo iba nyinshi kandi ikagira uburozi ku buso bw'imbuto.