Metsulfuron methyl, oogun alikama ti o munadoko pupọ ti o dagbasoke nipasẹ DuPont ni ibẹrẹ awọn ọdun 1980, jẹ ti sulfonamides ati pe o jẹ majele kekere si eniyan ati ẹranko. O ti wa ni o kun lo lati sakoso broadleaf èpo, ati ki o ni o dara Iṣakoso ipa lori diẹ ninu awọn gramineous èpo. O le ṣe idiwọ daradara ati ṣakoso awọn èpo ni awọn aaye alikama, gẹgẹbi Mainiang, Veronica, Fanzhou, Chaocai, apamọwọ oluṣọ-agutan, apamọwọ oluṣọ-agutan ti o fọ, Soniang Artemisia annua, awo-orin Chenopodium, Polygonum hydropiper, Oryza rubra, ati Arachis hypogaea.
Iṣe rẹ jẹ awọn akoko 2-3 ti chlorsulfuron methyl, ati fọọmu iwọn lilo akọkọ rẹ jẹ idadoro gbigbẹ tabi lulú tutu. Bibẹẹkọ, nitori iṣẹ ṣiṣe giga rẹ, ipaniyan igbo nla, ifarabalẹ to lagbara, ati ohun elo jakejado ni agbaye, o fi nọmba nla ti awọn iṣẹku silẹ ninu ile, ati ipa ipadasẹhin igba pipẹ yoo jẹ irokeke ewu si agbegbe ilolupo inu omi, nitorinaa ti fagile iforukọsilẹ rẹ diẹdiẹ ni ọdun 2013 ni Ilu China. Lọ́wọ́lọ́wọ́ báyìí, wọ́n ti fòfin de lílò rẹ̀ ní Ṣáínà, ṣùgbọ́n ó ṣì ń lò ó lọ́jà kárí ayé, ó sì tún lè mú ìforúkọ sílẹ̀ ní orílẹ̀-èdè China. Orilẹ Amẹrika ati Brazil jẹ awọn ọja okeere meji ti o ga julọ ti methasulfuron methyl ni Ilu China.
Ti ara ati kemikali-ini
Oogun imọ-ẹrọ jẹ funfun, ti o lagbara ti ko ni oorun, pẹlu aaye yo ti 163 ~ 166 ℃ ati titẹ oru ti 7.73 × 10-3 Pa/25 ℃. Solubility omi yatọ pẹlu pH: 270 ni pH 4.59, 1750 ni pH 5.42, ati 9500 mg/L ni pH 6.11.
Oloro
Majele ti si awọn ẹranko ti o gbona jẹ kekere pupọ. LD50 ẹnu ti awọn eku jẹ diẹ sii ju 5000 mg/kg, ati pe majele si awọn ẹranko inu omi ti lọ silẹ. Lilo rẹ ni ibigbogbo yoo fi nọmba nla ti awọn iṣẹku silẹ ninu ile, eyiti yoo jẹ irokeke ewu si agbegbe ilolupo inu omi, gẹgẹbi idinku iwuwo sẹẹli ti Anabaena flosaquae, eyiti o ni idiwọ pataki lori acetyllactic acid synthase (ALS) ti Anabaena. flosaquae.
Ilana igbese
Metsulfuron methyl jẹ akọkọ ti a lo lati ṣakoso awọn èpo ti o gbooro ni awọn aaye alikama, ati pe o tun le ṣakoso diẹ ninu awọn èpo girama. O ti wa ni o kun lo fun ami ororoo ile itoju tabi post ororoo yio ati bunkun sokiri. Ilana akọkọ ti iṣe ni pe lẹhin gbigba nipasẹ awọn ohun ọgbin ọgbin, o le yara ṣe si oke ati isalẹ ninu ara ọgbin, ṣe idiwọ iṣẹ ṣiṣe ti acetolactate synthase (ALS), ṣe idiwọ biosynthesis ti awọn amino acid pataki, ṣe idiwọ pipin sẹẹli ati idagbasoke, ṣe awọn irugbin alawọ ewe, aaye idagbasoke negirosisi, ewe wilting, ati lẹhinna gbin diėdiė withering, eyiti o jẹ ailewu fun alikama, barle, oats ati awọn irugbin alikama miiran.
Agbo akọkọ
metsulfuron-methyl 0.27% + bensulfuron-methyl 0.68% + acetochlor 8.05% GG (Macrogranule)
metsulfuron-methyl 1.75% + bensulfuron-methyl 8.25% SP
metsulfuron-methyl 0.3% + fluroxypyr 13.7% EC
metsulfuron-methyl 25% + ẹyànuron-methyl 25%
metsulfuron-methyl 6.8% + thifensulfuron-methyl 68.2%
Sintetiki ilana
O ti pese sile lati agbedemeji pataki rẹ, methyl phthalate benzene sulfonyl isocyanate (ọna asopọ kanna bi bensulfuron methyl), 2-amino-4-methyl-6-methoxy-triazine ati dichloroethane, lẹhin ifasẹ ni otutu yara, sisẹ ati ahoro.
Major okeere awọn orilẹ-ede
Gẹgẹbi data kọsitọmu, awọn ọja okeere ti China ti metsulfuron methyl ni ọdun 2019 jẹ to $ 26.73 milionu, eyiti Amẹrika jẹ ọja ibi-afẹde ti o tobi julọ ti metsulfuron methyl, pẹlu awọn agbewọle agbewọle lapapọ ti 4.65 milionu dọla ni ọdun 2019, Brazil jẹ ọja keji ti o tobi julọ, pẹlu awọn agbewọle lati ilu okeere ti bii 3.51 milionu dọla ni ọdun 2019, Malaysia jẹ ọja kẹta ti o tobi julọ, ati awọn agbewọle lati ilu okeere ti 3.37 milionu dọla ni ọdun 2019. Indonesia, Colombia, Australia, New Zealand, India, Argentina ati awọn orilẹ-ede miiran tun jẹ awọn agbewọle pataki ti sulfuron methyl.
Akoko ifiweranṣẹ: Jan-09-2023
