Metsulfron methyl, mankhwala ophera tirigu ogwira mtima kwambiri opangidwa ndi DuPont koyambirira kwa zaka za m'ma 1980, ndi a sulfonamides ndipo alibe poizoni wochepa kwa anthu ndi nyama. Amagwiritsidwa ntchito kwambiri polimbana ndi udzu wambiri, ndipo amatha kuwononga udzu wina wa gramineous. Ikhoza kuteteza ndi kulamulira namsongole m'minda ya tirigu, monga Mainiang, Veronica, Fanzhou, Chaocai, chikwama cha abusa, chikwama cha abusa osweka, Soniang Artemisia annua, album ya Chenopodium, Polygonum hydropiper, Oryza rubra, ndi Arachis hypogaea.
Ntchito yake ndi 2-3 nthawi ya chlorsulfuron methyl, ndipo mawonekedwe ake akuluakulu a mlingo ndi kuyimitsidwa kouma kapena ufa wonyowa. Komabe, chifukwa cha ntchito yake yayikulu, kupha udzu wambiri, kugwiriridwa mwamphamvu, komanso kugwiritsa ntchito kwambiri padziko lapansi, imasiya zotsalira zambiri m'nthaka, ndipo kutsalira kwake kwanthawi yayitali kungayambitse chiwopsezo ku chilengedwe cha m'madzi, kotero kulembetsa kwake kunathetsedwa pang'onopang'ono mu 2013 ku China. Pakadali pano, kugwiritsidwa ntchito kwake ku China kwaletsedwa, koma kumagwiritsidwabe ntchito kwambiri pamsika wapadziko lonse lapansi, ndipo kumatha kulembetsa kulembetsa ku China. United States ndi Brazil ndi misika iwiri yapamwamba yotumiza kunja ya methasulfuron methyl ku China.
Thupi ndi mankhwala katundu
The luso mankhwala ndi woyera, odorless olimba, ndi malo osungunuka 163 ～ 166 ℃ ndi nthunzi kuthamanga 7.73 × 10-3 Pa/25 ℃. Kusungunuka kwamadzi kumasiyana ndi pH: 270 pa pH 4.59, 1750 pa pH 5.42, ndi 9500 mg/L pa pH 6.11.
Poizoni
Kawopsedwe wa nyama zotentha magazi ndi wotsika kwambiri. Mkamwa LD50 ya makoswe ndi yoposa 5000 mg / kg, ndipo poizoni wa nyama zam'madzi ndi wotsika. Kugwiritsiridwa ntchito kwake kofala kudzasiya zotsalira zambiri m’nthaka, zomwe zidzawopseza chilengedwe cha m’madzi, monga kuchepetsa kachulukidwe ka maselo a Anabaena flosaquae, amene ali ndi chopinga chachikulu pa acetyllactic acid synthase (ALS) ya Anabaena. flosaquae.
Njira yochitira
Metsulfuron methyl imagwiritsidwa ntchito kwambiri poletsa udzu wambiri m'minda ya tirigu, ndipo imathanso kuwononga namsongole. Amagwiritsidwa ntchito popangira dothi la pre seedling kapena tsinde la mmera ndi kutsitsi kwa masamba. Njira yayikulu yochitirapo kanthu ndikuti itatha kutengeka ndi minyewa ya zomera, imatha kuthamangitsa mmwamba ndi pansi muzomera, kuletsa ntchito ya acetolactate synthase (ALS), kuteteza biosynthesis ya amino acid ofunikira, kuletsa kugawanika kwa maselo ndi kukula, kupanga mbande wobiriwira, kukula mfundo necrosis, tsamba kufota, ndiyeno kudzala pang'onopang'ono kufota, amene ali otetezeka kwa tirigu, balere, oats ndi mbewu zina tirigu.
Main pawiri
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% + trinuron-methyl 25%
metsulfuron-methyl 6.8% + thifensulfuron-methyl 68.2%
Njira yopangira
Amakonzedwa kuchokera ku methyl phthalate benzene sulfonyl isocyanate (njira yofanana ndi bensulfuron methyl), 2-amino-4-methyl-6-methoxy-triazine ndi dichloroethane, pambuyo pochita kutentha, kusefa ndi kuwonongeka.
Maiko akuluakulu otumiza kunja
Malinga ndi zidziwitso zamakasitomala, kutulutsa kwa China metsulfuron methyl mu 2019 kudakwana pafupifupi madola 26.73 miliyoni, pomwe United States inali msika waukulu kwambiri wa metsulfuron methyl, womwe udatulutsa $ 4.65 miliyoni mchaka cha 2019, Brazil inali msika wachiwiri waukulu. katundu wa pafupifupi 3.51 miliyoni madola mu 2019, Malaysia anali msika wachitatu waukulu, ndi kunja kwa madola 3.37 miliyoni mu 2019. Indonesia, Colombia, Australia, New Zealand, India, Argentina ndi mayiko ena nawonso zofunika methyl sulfuron.
Nthawi yotumiza: Jan-09-2023
