Abalimi abaningi baye baba ne-phytotoxicity lapho besebenzisa i-mancozeb ngenxa yokukhetha okungafanele komkhiqizo noma isikhathi esingalungile sokufaka isicelo, umthamo, kanye nemvamisa. Izimo ezithambile ziholela ekulimaleni kwamaqabunga, i-photosynthesis ibe buthaka, kanye nokungakhuli kahle kwezitshalo. Ezimweni ezimbi kakhulu, amachashaza ezidakamizwa (amabala ansundu, amachashaza aphuzi, amachashaza, njll.) akheka endaweni yesithelo nangaphezulu kweqabunga, aze abangele amachashaza ezithelo, amachashaza amabi, nokugqwala kwezithelo, okulimaza kakhulu ukuhwebelana kwesithelo, okubangela ukulahlekelwa okukhulu kubalimi. Ngokufingqa, kutholakala ukuthi izizathu eziyinhloko ze-phytotoxicity zimi kanje:
1. Imikhiqizo ye-mancozeb engafanelekile iholela ezenzweni eziphezulu ze-phytotoxicity.
I-mancozeb efanelekayo kufanele ibe inkimbinkimbi ye-manganese-zinci-mancozeb acidekhiqizwa inqubo eyinkimbinkimbi yokushisa. Kunamabhizinisi amancane nabazenzisi emakethe imikhiqizo yabo engakwazi ukubizwa nge-mancozeb empeleni. Ngenxa yokulinganiselwa kwemishini yokukhiqiza nobuchwepheshe, ingxenye encane kuphela yemikhiqizo yalawa mabhizinisi amancane engahlanganiswa ibe i-mancozeb, futhi iningi liyingxube kasawoti we-mancozeb ne-zinc. Le mikhiqizo inombala ongacacile, ukungcola okuphezulu, futhi ijwayele ukuwohloka lapho ivezwe kumswakama nokushisa. Ukusebenzisa le mikhiqizo kungenzeka kakhulu kubangele i-phytotoxicity. Isibonelo, ukusebenzisa i-mancozeb esezingeni eliphansi ngesikhathi sesithelo esincane sama-apula kungaphazamisa ukunqwabelana kwe-wax endaweni yesithelo, kubangele ukulimala emakhasini esithelo futhi kubangele amachashaza ayindilinga e-phytotoxicity, ayanda njengoba isithelo sikhula.
2. Ukuxutshwa ngobumpumputhe kwezibulala-zinambuzane kuthinta ukuphepha kokusetshenziswa kwe-mancozeb.
Lapho kuxutshwa izibulala-zinambuzane, izici eziningi njengezithako ezisebenzayo, izakhiwo ezingokomzimba namakhemikhali, imiphumela yokulawula, nezilokazane eziqondiwe kufanele kubhekwe. Ukuxuba okungaboni akugcini nje ukunciphisa ukusebenza kahle kodwa futhi kwandisa ingozi ye-phytotoxicity. Ngokwesibonelo, umkhuba ovamile wokuxuba i-mancozeb nezibulala-zinambuzane ezine-alkali noma izinhlanganisela zensimbi enzima equkethe ithusi unganciphisa ukusebenza kahle kwe-mancozeb. Ukuxuba i-mancozeb nemikhiqizo ye-phosphate kungaholela ekwakhekeni kwe-flocculent precipitates kanye nokukhululwa kwegesi ye-hydrogen sulfide.
3. Ukukhetha okungalungile kwesikhathi sokufafaza kanye nokulungiswa okungenangqondo kokugxila kokufafaza kwandisa ingozi ye-phytotoxicity.
Ekusetshenzisweni kwangempela, abalimi abaningi bathanda ukunciphisa isilinganiso se-dilution ekugxiliseni okucaciswe emiyalweni noma basebenzise ukugxilisa okungaphezulu kakhulu kwalokho okunconyiwe ukuze bathuthukise ukusebenza kahle. Lokhu kwandisa ingozi ye-phytotoxicity. Ngesikhathi esifanayo, abalimi baxuba izibulala-zinambuzane eziningi ukuze bathole imiphumela ye-synergistic, banaka kuphela amagama ahlukene ohwebo kodwa bangazinaki izithako ezisebenzayo kanye nokuphakathi kwazo. Phakathi nenqubo yokuxuba, umthamo wesithako esifanayo esisebenzayo uyanqwabelana, futhi ukuhlushwa kwe-pesticide kukhula ngokungaqondile, kudlule ukuhlushwa okuphephile futhi kubangele i-phytotoxicity. Ukusebenzisa izibulala-zinambuzane ngaphansi kwezimo eziphezulu zokushisa kwandisa umsebenzi wokubulala izinambuzane. Ukufafaza izibulala-zinambuzane ezinezinga eliphezulu kwandisa ingozi ye-phytotoxicity.
4. Izinga lomkhiqizo lithinta ukuphepha kwe-mancozeb.
Ukucoleka, izinga lokumiswa, indawo yokumanzisa, nokunamathela kwezinhlayiya ze-mancozeb kuthinta ukusebenza kahle nokuphepha komkhiqizo. Imikhiqizo ye-mancozeb yezinye yamabhizinisi inokusilela ezinkomba zobuchwepheshe ezifana nenhlawulo, izinga lokumiswa, kanye nendawo yokumanzisa ngenxa yemikhawulo yenqubo yokukhiqiza. Ngesikhathi sokusetshenziswa kwangempela, ukwenzeka kokufakwa kwezibulala-zinambuzane kanye nokuvimba kwe-sedimentation ku-nozzle kuvamile. I-sedimentation ye-pesticide ngesikhathi sokufafaza kubangela ukugxila okungahambisani phakathi nenqubo yokufafaza, okuholela ekusebenzeni okunganele ekugxilweni okuphansi kanye ne-phytotoxicity ekugxilweni okuphezulu. Ukunganamatheli kahle kwesibulala-zinambuzane, kuhlangene namanzi amaningi asetshenziselwa ukufafaza, kubangela ukuba isibulala-zinambuzane singasakazeki kahle phezu kwamaqabunga, okuholela ekunqwabeleni kwekhambi lesibulala-zinambuzane emaphethelweni amaqabunga nangaphezulu kwesithelo, okuholela ekugxilweni okuphezulu kwendawo kanye namabala e-phytotoxicity.
Isikhathi sokuthumela: Nov-22-2025