Metsulfuron methyl, tshuaj tua kab mob qoob loo zoo heev tsim los ntawm DuPont thaum xyoo 1980s, belongs rau sulfonamides thiab tsis muaj tshuaj lom rau tib neeg thiab tsiaj txhu. Nws yog tsuas yog siv los tswj broadleaf weeds, thiab muaj kev tswj zoo ntawm qee cov nroj tsuag gramineous. Nws tuaj yeem tiv thaiv thiab tswj cov nroj tsuag hauv cov nplej, xws li Mainiang, Veronica, Fanzhou, Chaocai, tus tswv yug yaj lub hnab, tawg tus tswv yug yaj lub hnab, Soniang Artemisia annua, Chenopodium album, Polygonum hydropiper, Oryza rubra, thiab Arachis hypogaea.
Nws cov dej num yog 2-3 zaug ntawm chlorsulfuron methyl, thiab nws daim ntawv tseem ceeb ntawm kev siv tshuaj yog qhuav qhuav lossis ntub dej. Txawm li cas los xij, vim nws txoj haujlwm siab, kev tua cov nroj tsuag ntau, muaj zog pertinence, thiab daim ntawv thov dav hauv ntiaj teb, nws tawm ntau qhov seem hauv av, thiab nws cov txiaj ntsig mus ntev yuav ua rau muaj kev hem thawj rau cov dej hauv dej, yog li nws cov ntawv sau npe tau maj mam muab tso tseg hauv 2013 hauv Suav teb. Tam sim no, nws siv hauv Suav teb tau raug txwv, tab sis nws tseem siv dav hauv kev lag luam thoob ntiaj teb, thiab nws tseem tuaj yeem tuav cov npe xa tawm hauv Suav teb. Tebchaws Asmeskas thiab Brazil yog ob lub khw muag khoom loj tshaj plaws ntawm methasulfuron methyl hauv Suav teb.
Lub cev thiab tshuaj muaj zog
Cov tshuaj siv tshuaj yog cov khoom dawb, tsis muaj ntxhiab tsw, nrog lub melting point ntawm 163 ~ 166 ℃ thiab vapor siab ntawm 7.73 × 10-3 Pa / 25 ℃. Cov dej solubility sib txawv nrog pH: 270 ntawm pH 4.59, 1750 ntawm pH 5.42, thiab 9500 mg / L ntawm pH 6.11.
Toxicity
Cov toxicity rau cov tsiaj ntshav sov yog tsawg heev. Qhov ncauj LD50 ntawm nas yog ntau tshaj 5000 mg / kg, thiab toxicity rau cov tsiaj hauv dej yog tsawg. Nws txoj kev siv dav dav yuav tawm ntau qhov seem ntawm cov av, uas yuav ua rau muaj kev hem thawj rau cov dej nyob hauv ib puag ncig, xws li txo cov cell ceev ntawm Anabaena flosaquae, uas muaj qhov cuam tshuam tseem ceeb ntawm acetyllactic acid synthase (ALS) ntawm Anabaena. flosaquae.
Action mechanism
Metsulfuron methyl feem ntau yog siv los tswj cov kab dav dav hauv cov nplej, thiab tseem tuaj yeem tswj tau qee cov nroj tsuag gramineous. Nws yog tsuas yog siv rau pre seedling av kho los yog post seedling qia thiab nplooj tsuag. Lub luag haujlwm tseem ceeb ntawm kev ua yog tias tom qab tau nqus los ntawm cov ntaub so ntswg, nws tuaj yeem ua sai sai hauv cov nroj tsuag lub cev, inhibit qhov kev ua ntawm acetolacate synthase (ALS), tiv thaiv biosynthesis ntawm qhov tseem ceeb amino acids, inhibit cell division thiab kev loj hlob, ua kom cov qoob loo ntsuab, kev loj hlob taw tes necrosis, nplooj wilting, thiab tom qab ntawd cog maj mam withering, uas muaj kev nyab xeeb rau cov nplej, barley, oats thiab lwm yam qoob loo.
Main compound
Metsulfuron-methyl 0.27% + bensulfuron-methyl 0.68% + acetochlor 8.05% GG (Macrogranule)
Tom ntej: Metsulfuron-methyl 1.75% + Bensulfuron-methyl 8.25% SP
Metsulfuron-methyl 0.3% + fluroxypyr 13.7% EC
Metsulfuron-methyl 25% + tribenuron-methyl 25%
Tom ntej: Metsulfuron-methyl 6.8% + thifensulfuron-methyl 68.2%
Synthetic txheej txheem
Nws yog npaj los ntawm nws qhov tseem ceeb nruab nrab, methyl phthalate benzene sulfonyl isocyanate ( tib txoj kev sib xyaw ua ke xws li bensulfuron methyl), 2-amino-4-methyl-6-methoxy-triazine thiab dichloroethane, tom qab cov tshuaj tiv thaiv ntawm chav tsev kub, pom thiab desolvation.
Lub teb chaws loj export
Raws li cov ntaub ntawv kev lis kev cai, Tuam Tshoj tus xa tawm ntawm metsulfuron methyl hauv 2019 tag nrho kwv yees li 26.73 lab nyiaj daus las, uas Tebchaws Meskas yog lub hom phiaj loj tshaj plaws ntawm metsulfuron methyl, nrog tag nrho cov khoom xa tawm ntawm 4.65 lab daus las hauv 2019, Brazil yog lub khw loj thib ob, nrog rau Kev xa tawm ntawm kwv yees li 3.51 lab daus las hauv xyoo 2019, Malaysia yog lub lag luam loj thib peb, thiab kev xa tawm ntawm 3.37 lab daus las hauv 2019. Indonesia, Colombia, Australia, New Zealand, Is Nrias teb, Argentina thiab lwm lub teb chaws tseem yog cov tseem ceeb importers ntawm methyl sulfuron.
Post lub sij hawm: Jan-09-2023
