Varimi vazhinji vakasangana ne phytotoxicity kana vachishandisa mancozeb nekuda kwesarudzo isina kunaka yechigadzirwa kana nguva isiriyo yekushandisa, dosage, uye frequency. Zvisizvo zvinyoro zvinokonzeresa kukuvadzwa kwemashizha, kushaya simba kwephotosynthesis, uye kusakura zvakanaka kwembesa. Muzviitiko zvakakomba, makwapa ezvinodhaka (makwapa ebrown, yellow spots, net spots, etc.) anoumba pamusoro pemichero pamusoro pemuchero uye shizha pamusoro, uye kunyange kukonzera oversized michero dots, rough muchero pamusoro, uye michero ngura, zvakakomba kukanganisa kutengeserana kukosha muchero, zvichikonzera kurasikirwa kukuru kuvarimi. Kuburikidza muchidimbu, zvinoonekwa kuti zvikonzero zvikuru zve phytotoxicity ndezvizvi:
1. Zvigadzirwa zvisina kukodzera zvemancozeb zvinotungamira kune chiitiko chakanyanya che phytotoxicity.
Inokodzera mancozeb inofanirwa kuve manganese-zinc yakaoma yemancozeb asidhiinogadzirwa neiyo thermal complexation process. Kune mamwe mabhizinesi madiki nevekunyepedzera pamusika vane zvigadzirwa zvisingakwanise kunzi mancozeb muchidimbu. Nekuda kwekushomeka kwemidziyo yekugadzira uye tekinoroji, chikamu chidiki chete chezvigadzirwa zveaya mabhizinesi madiki chinogona kuomeswa kuita mancozeb, uye mazhinji musanganiswa we mancozeb uye zinc munyu. Zvigadzirwa izvi zvine ruvara rwakasvibira, hutsvina hwepamusoro, uye hunowanzo shatisa kana uchinge waiswa hunyoro nekupisa. Kushandisa zvigadzirwa izvi zvinonyanya kukonzera phytotoxicity. Semuenzaniso, kushandisa inferior mancozeb panguva yemuchero mudiki danho remaapuro kunogona kukanganisa kuiswa kwewakisi pamusoro pemuchero, zvichikonzera kukuvadzwa kweganda remuchero uye zvichikonzera denderedzwa phytotoxicity makwapa, ayo anokura apo muchero unokura.
2. Kusanganiswa kwemapofu kwemishonga yezvipembenene kunokanganisa kuchengetedzwa kwekushandisa mancozeb.
Pakusanganisa mishonga yezvipembenene, zvinhu zvakawanda zvakaita sezvishandiso zvinosanganisirwa, zvemuviri nemakemikari zvimiro, kudzora mhedzisiro, uye zvipembenene zvinonangwa zvinofanirwa kutariswa. Kusanganiswa kwemapofu hakusi kungoderedza kushanda asiwo kunowedzera ngozi ye phytotoxicity. Semuenzaniso, tsika yakajairika yekusanganisa mancozeb nealkaline mishonga yezvipembenene kana heavy metal makomisheni ane mhangura inogona kuderedza kushanda kwemancozeb. Kusanganisa mancozeb nezvigadzirwa zvephosphate zvinogona kutungamira mukuumbwa kwemaflocculent precipitates uye kuburitswa kwehydrogen sulfide gasi.
3. Kusarudzwa kwakashata kwekupfapfaidza nguva uye kugadziriswa kusingabvumirwi kwekuputira kuisa pfungwa kunowedzera njodzi ye phytotoxicity.
Mukushandisa chaiko, varimi vazhinji vanofarira kudzikisa reshiyo yedilution kusvika kune yakatsanangurwa mumirayiridzo kana kutoshandisa yakakwira zvakanyanya kupfuura yakakurudzirwa kuti iwedzere kushanda. Izvi zvinowedzera njodzi ye phytotoxicity. Panguva imwecheteyo, varimi vanosanganisa mishonga yezvipembenene yakawanda ye synergistic mhedzisiro, vachingoteerera kune akasiyana mazita ekutengeserana asi vachiregeredza zvinoshanda zvinoshandiswa uye zviri mukati mazvo. Munguva yekusanganiswa, kuyerwa kweiyo imwechete inoshanda chinhu inounganidza, uye kusangana kwemushonga wezvipembenene kunowedzera zvisina kunanga, kupfuudza kuchengetedzeka kwakachengeteka uye kukonzera phytotoxicity. Kushandisa mishonga yezvipembenene pasi pekupisa kwepamusoro-soro kunowedzera basa remushonga. Kupfapfaidza mishonga yezvipembenene yakakwira-concentration inowedzera njodzi ye phytotoxicity.
4. Hunhu hwechigadzirwa hunokanganisa kuchengetedzwa kwemancozeb.
Iko kunaka, kumiswa mwero, kunyorova chivakwa, uye kunamatira kwezvikamu zvemancozeb zvinokanganisa kushanda nekuchengetedzeka kwechigadzirwa. Mamwe mabhizinesi ezvigadzirwa zvemancozeb ane kushomeka kwezviratidziro zvetekinoroji zvakaita sehunyoro, chiyero chekumisikidza, uye midziyo yekunyorova nekuda kwezvimiro zvekugadzira. Panguva yekushandiswa chaiko, chiitiko chekuisa mishonga yezvipembenene uye sedimentation ichivharira muromo inowanzoitika. Iyo sedimentation yemushonga panguva yekupfapfaidza inokonzeresa kusawirirana panguva yekupfapfaidza, zvichikonzera kusakwana kwekuita pakudzika kwakadzika uye phytotoxicity pane yakanyanya kuwanda. Kusabatwa zvakanaka kwemushonga, pamwe chete nemvura yakawanda inoshandiswa pakupfapfaidza, inoita kuti mushonga wezvipembenene usapararire zvakanaka pashizha, zvichiita kuti pave nekuunganidzwa kwemushonga wepesticide pamazano emashizha uye pamusoro pemichero, zvichiita kuti pave nepamusoro penzvimbo uye phytotoxicity spots.
Nguva yekutumira: Nov-22-2025