Nplej yog cov zaub mov tseem ceeb hauv ntiaj teb, thiab ntau dua 40% ntawm cov neeg hauv ntiaj teb noj cov nplej ua cov zaub mov tseem ceeb.Tus kws sau ntawv tsis ntev los no tau txaus siab rau tshuaj tua kab mob rau cov qoob loo, thiab tau ua tiav cov qub tub rog ntawm ntau hom qoob loo herbicides.Txawm hais tias cov neeg ua haujlwm tshiab xws li pinoxaden tau tawm los tas li, xav tias kev tswj hwm ntawm qee cov nroj tsuag tshwj xeeb hauv cov nplej thiab tib lub hom phiaj ntawm cov neeg ua haujlwm tshiab xav tau cov khoom lag luam nrog cov txheej txheem tshwj xeeb ntawm kev ua haujlwm & tsis yooj yim los tsim cov tshuaj tiv thaiv sib xyaw kom ua tiav cov txiaj ntsig ntawm kev tshem tawm ob npaug, txo tus nqi ntawm kev siv teb, thiab lwm yam, qee lub ntsej muag qub tseem yog lub zog tseem ceeb ntawm cov nroj tsuag hauv cov nplej, thiab txuas ntxiv mus ua lub luag haujlwm tsis tuaj yeem hloov.Cov khoom uas tau piav qhia hauv qab no yog cov nemesis ntawm broadleaf weeds nyob rau hauv cov nplej teb, feem ntau siv formulation, tsis tshua muaj kub resistant, zoo heev rau cov nplej, thiab kev lag luam.Cov tshuaj tua kab mob no yog Florasulam.

Florasulam yog tus thib tsib triazole pyrimidine ua tiav los ntawm Dow AgroSciences nyob rau hauv nruab nrab-1990s tom qab sulfentrazone, sulfentrazone, dicoxsulam thiab sulfentrazone.Sulfonamide herbicides.Nws tau tshaj tawm nyob rau xyoo 1998-1999, feem ntau yog siv rau kev tswj cov nroj tsuag dav dav hauv cov nplej.Kev tiv thaiv zoo.Txij li thaum nws tau muab tso rau hauv kev ua lag luam hauv xyoo 2000, nws yog ib qho ntawm Dow AgroSciences 'kev muag khoom loj hlob taw tes, thiab qhov kev loj hlob tau zoo heev nyob rau xyoo tas los no.

Mechanism ntawm Action

Florasulam belongs rau chav kawm triazolopyrimidine sulfonamide ntawm cov tshuaj tua kab mob thiab yog cov tshuaj acetolactate synthase (ALS) inhibitor.Los ntawm inhibiting acetolactate synthase nyob rau hauv cov nroj tsuag, nws cuam tshuam lub biosynthesis ntawm sab saw amino acids xws li valine, leucine thiab isoleucine, thiaj li hais tias cell division yog inhibited, qhov kev loj hlob ntawm cov nroj tsuag raug rhuav tshem, thiab cov nroj tsuag tuag.

Florasulam muaj cov txheej txheem conductivity, uas tuaj yeem nqus tau los ntawm cov nplooj thiab cov hauv paus hniav, xa mus rau tag nrho cov nroj tsuag nroj tsuag, thiab khaws cia hauv meristem ua rau cov nroj tsuag tuag.Yog li ntawd, cov nroj tsuag raug tua tag nrho thiab yuav tsis rov muaj dua.

Daim ntawv thov

Florasulam feem ntau yog siv rau tom qab tshwm sim qia thiab nplooj kho hauv cov nplej teb los tswj cov kab dav dav, suav nrog Artemisia somnifera, tus tswv yug yaj lub hnab, kev ua phem rau npua, npua lub calamity, chickweed, nyuj chickweed, zes loj, nplej chakra, daj Quail, Maijiag. thiab lwm yam nroj tsuag nyuaj, thiab muaj kev cuam tshuam zoo heev ntawm kev tswj nyuaj Ze Lacquer (Euphorbiaceae) hauv cov nplej.Nws kuj tseem siv tau rau barley, pob kws, taum pauv, paj rwb, paj noob hlis, qos yaj ywm, pome txiv hmab txiv ntoo, dos thiab grassland, pasture, thiab lwm yam. Lub sij hawm daim ntawv thov yog dav, thiab nws yuav siv tau ua ntej lub caij ntuj no mus rau thaum ntxov caij nplooj ntoos hlav.

Outlook

Florasulam muaj qhov zoo ntawm daim ntawv thov zoo thiab yog ib qho tshuaj tua kab mob uas tsis tuaj yeem siv rau cov nplej.Txawm li cas los xij, qhov tsis zoo ntawm Florasulam yog qhov ceev ntawm cov nyom tuag yog qhov qeeb thiab qhov chaw ua haujlwm yog ib leeg.Yog li ntawd, nws yog ib qho tsim nyog yuav tsum tau ua kom tag nrho nws qhov ntev thiab zam nws qhov luv kom ua kom lub neej ua lag luam zoo tshaj plaws.