Metsulfuron methyl, maganin alkama mai tasiri sosai wanda DuPont ya haɓaka a farkon shekarun 1980, na sulfonamides ne kuma ba shi da guba ga mutane da dabbobi. Ana amfani da shi musamman don sarrafa ciyawa mai faɗi, kuma yana da tasiri mai kyau akan wasu ciyawa. Yana iya hanawa yadda ya kamata da sarrafa ciyawa a cikin filayen alkama, kamar Mainiang, Veronica, Fanzhou, Chaocai, jakar makiyayi, jakar makiyayi karya, Soniang Artemisia annua, kundin Chenopodium, Polygonum hydropiper, Oryza rubra, da Arachis hypogaea.
Ayyukansa shine sau 2-3 na chlorsulfuron methyl, kuma babban nau'in sarrafa shi shine busassun dakatarwa ko foda. Duk da haka, saboda yawan aiki, yawan kashe ciyayi, daɗaɗɗa mai ƙarfi, da aikace-aikace mai yawa a duniya, yana barin raƙuman ruwa mai yawa a cikin ƙasa, kuma tasirinsa na dogon lokaci zai haifar da barazana ga yanayin muhalli na ruwa. don haka a hankali an soke rajistarta a shekarar 2013 a kasar Sin. A halin yanzu, an haramta amfani da shi a kasar Sin, amma har yanzu ana amfani da shi a kasuwannin duniya, kuma har yanzu tana iya yin rajistar fitar da kayayyaki a kasar Sin. Amurka da Brazil sune manyan kasuwanni biyu na fitar da methasulfuron methyl a China.
Jiki da sinadarai Properties
Magungunan fasaha shine fari, maras wari, mai narkewa na 163 ℃ 166 ℃ da tururin matsa lamba na 7.73 × 10-3 Pa/25 ℃. Solubility na ruwa ya bambanta da pH: 270 a pH 4.59, 1750 a pH 5.42, da 9500 mg / L a pH 6.11.
Guba
Rashin guba ga dabbobi masu jinni ya ragu sosai. LD50 na baka na berayen sun fi 5000 mg/kg, kuma yawan guba ga dabbobin ruwa ya ragu. Yin amfani da shi da yawa zai bar raguwa mai yawa a cikin ƙasa, wanda zai haifar da barazana ga yanayin muhalli na ruwa, kamar rage yawan kwayar halitta na Anabaena flosaquae, wanda ke da mahimmancin hanawa akan acetyllactic acid synthase (ALS) na Anabaena. flosaquae.
Tsarin aiki
Metsulfuron methyl ana amfani da shi musamman don sarrafa ciyawa mai ganye a cikin gonakin alkama, kuma yana iya sarrafa wasu ciyawa masu girma. An yafi amfani da pre seedling ƙasa magani ko post seedling kara da leaf SPRAY. Babban tsarin aikin shi ne cewa bayan an shafe shi da kyallen takarda, yana iya yin sauri sama da ƙasa a cikin jikin shuka, yana hana ayyukan acetolactate synthase (ALS), hana biosynthesis na amino acid masu mahimmanci, hana rarrabawar sel da girma. sanya seedlings kore, girma point necrosis, leaf wilting, sa'an nan kuma shuka a hankali bushewa, wanda ba shi da lafiya ga alkama, sha'ir, hatsi da sauran albarkatun alkama.
Babban fili
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% + kabilunuron-methyl 25%
metsulfuron-methyl 6.8% + thifensulfuron-methyl 68.2%
Tsarin roba
An shirya shi daga mahimmancin tsaka-tsakinsa, methyl phthalate benzene sulfonyl isocyanate (Hanyar haɗin kai kamar bensulfuron methyl), 2-amino-4-methyl-6-methoxy-triazine da dichloroethane, bayan amsawa a dakin da zafin jiki, tacewa da lalata.
Manyan kasashen da ake fitarwa
Bisa kididdigar da hukumar kwastam ta fitar, kasar Sin ta fitar da metsulfuron methyl a shekarar 2019 ya kai dala miliyan 26.73, wanda Amurka ce babbar kasuwar metsulfuron methyl da ta fi kai hari, tare da shigo da dala miliyan 4.65 a shekarar 2019, Brazil ce ta biyu mafi girma a kasuwa, tare da shigo da kusan dala miliyan 3.51 a shekarar 2019, Malaysia ita ce kasuwa ta uku mafi girma, da kuma shigo da dala miliyan 3.37 a shekarar 2019. Indonesia, Colombia, Australia, New Zealand, India, Argentina da sauran kasashe su ma suna da mahimmancin shigo da methyl sulfuron.
Lokacin aikawa: Janairu-09-2023
