Thaum ICI pib paraquat ntawm kev ua lag luam hauv xyoo 1962, ib tus yuav tsis tau xav txog tias paraquat yuav ntsib txoj hmoo zoo li no yav tom ntej.Qhov zoo tshaj plaws uas tsis yog xaiv broad-spectrum herbicide tau teev nyob rau hauv lub ntiaj teb thib ob-loj tshaj plaws tshuaj tua kab mob.Kev poob qis ib zaug ua rau txaj muag, tab sis nrog tus nqi siab txuas ntxiv ntawm Shuangcao xyoo no thiab zoo li yuav nce ntxiv, nws tau tawm tsam hauv lub ntiaj teb kev ua lag luam, tab sis tus nqi pheej yig paraquat yog qhov kaj ntug ntawm kev cia siab.
Zoo heev uas tsis yog xaiv hu rau herbicide
Paraquat yog tshuaj tua kab mob bipyridine.Cov tshuaj tua kab mob yog cov tshuaj tua kab mob uas tsis yog xaiv tau tsim los ntawm ICI hauv xyoo 1950.Nws muaj cov tshuaj tua kab mob dav dav, kev tiv tauj sai, nag yaig tsis kam, thiab tsis xaiv.Thiab lwm yam zoo heev.
Paraquat tuaj yeem siv los tswj kev cog qoob loo ua ntej lossis tom qab cov nroj tsuag tshwm sim hauv orchards, pob kws, qab zib, taum pauv thiab lwm yam qoob loo.Nws tuaj yeem siv los ua desiccant thaum sau qoob thiab kuj yog ib qho defoliant.
Paraquat tua cov chloroplast daim nyias nyias ntawm cov nroj tsuag feem ntau yog los ntawm kev tiv tauj ntsuab qhov chaw ntawm cov nroj tsuag, cuam tshuam rau kev tsim cov chlorophyll hauv cov nroj tsuag, yog li cuam tshuam rau photosynthesis ntawm cov nroj tsuag, thiab thaum kawg sai sai nres kev loj hlob ntawm cov nroj tsuag.Paraquat muaj zog ua kom puas tsuaj rau cov ntaub so ntswg ntsuab ntawm monocot thiab dicot nroj tsuag.Feem ntau, cov nroj tsuag tuaj yeem hloov pauv tsis pub dhau 2 mus rau 3 teev tom qab thov.
Qhov xwm txheej thiab qhov xwm txheej export ntawm paraquat
Vim tias muaj tshuaj lom ntawm paraquat rau tib neeg lub cev thiab muaj peev xwm ua rau tib neeg noj qab haus huv hauv cov txheej txheem ntawm kev thov tsis tu ncua, paraquat raug txwv los ntawm ntau tshaj 30 lub teb chaws suav nrog European Union, Tuam Tshoj, Thaib, Switzerland thiab Brazil.
Raws li cov ntaub ntawv tshaj tawm los ntawm 360 Kev Tshawb Fawb Tshaj Tawm, thoob ntiaj teb kev muag khoom ntawm paraquat hauv 2020 tau poob txog li 100 lab US dollars.Raws li Syngenta tsab ntawv ceeb toom ntawm paraquat tso tawm xyoo 2021, Syngenta tam sim no muag paraquat hauv 28 lub teb chaws.Muaj 377 lub tuam txhab thoob ntiaj teb uas tau sau npe cov tshuaj paraquat zoo.Syngenta tso nyiaj rau kwv yees li ib qho ntawm lub ntiaj teb kev muag khoom ntawm paraquat.Ib lub quarter.
Hauv xyoo 2018, Tuam Tshoj tau xa tawm 64,000 tons ntawm paraquat thiab 56,000 tons hauv 2019. Lub hom phiaj xa tawm tseem ceeb ntawm Tuam Tshoj paraquat hauv 2019 yog Brazil, Indonesia, Nigeria, Tebchaws Meskas, Mexico, Thaib, Australia, thiab lwm yam.
Txawm hais tias paraquat tau raug txwv nyob rau hauv cov teb chaws tseem ceeb ua liaj ua teb xws li European Union, Brazil, thiab Tuam Tshoj, thiab cov khoom xa tawm tau raug txo qis hauv ob peb xyoos dhau los, nyob rau hauv cov xwm txheej tshwj xeeb uas cov nqi ntawm glyphosate thiab glufosinate-ammonium txuas ntxiv mus. yuav tsum siab rau xyoo no thiab zoo li yuav nce ntxiv, Paraquat, ib hom yuav luag xav tau, yuav ua rau muaj txiaj ntsig tshiab.
Tus nqi siab ntawm Shuangcao txhawb kev thov thoob ntiaj teb rau paraquat
Yav dhau los, thaum tus nqi ntawm glyphosate yog 26,000 yuan / tuj, paraquat yog 13,000 yuan / tuj.Tus nqi tam sim no ntawm glyphosate tseem yog 80,000 yuan / tuj, thiab tus nqi ntawm glufosinate yog siab dua 350,000 yuan.Yav dhau los, qhov siab tshaj plaws thoob ntiaj teb kev thov rau paraquat yog kwv yees li 260,000 tons (raws li 42% ntawm cov khoom tiag), uas yog kwv yees li 80,000 tons.Suav lag luam yog kwv yees li 15,000 tons, Brazil 10,000 tons, Thaib teb 10,000 tons, thiab Indonesia, Tebchaws Asmeskas, thiab Thaib teb.Nigeria, Is Nrias teb thiab lwm lub tebchaws.
Nrog rau kev txwv tsis pub cov tshuaj ib txwm muaj xws li Tuam Tshoj, Brazil, thiab Thaib teb, txoj kev xav, ntau dua 30,000 tons ntawm qhov chaw lag luam tau tso tawm.Txawm li cas los xij, xyoo no, nrog kev nce sai ntawm cov nqi ntawm "Shuangcao" thiab Diquat, thiab kev ua lag luam tsis muaj neeg nyob hauv Tebchaws Meskas Nrog rau kev ywj pheej ntawm kev siv tshuab, kev thov hauv Asmeskas lossis North American lag luam tau nce li ntawm 20%, uas tau txhawb nqa qhov kev thov rau paraquat thiab txhawb nws tus nqi rau qee yam.Tam sim no, tus nqi / kev ua tau zoo ntawm paraquat yog qhov sib tw ntau dua yog tias nws qis dua 40,000.zog.
Tsis tas li ntawd, cov neeg nyeem nyob rau sab hnub tuaj Asia feem ntau tau tshaj tawm tias hauv thaj chaw xws li Nyab Laj, Malaysia, thiab Brazil, cov nroj tsuag loj hlob sai thaum lub caij los nag, thiab paraquat muaj kev tiv thaiv zoo los nag yaig.Tus nqi ntawm lwm cov tshuaj tua kab mob biocidal tau nce siab dhau lawm.Cov neeg ua liaj ua teb nyob rau hauv cov cheeb tsam no tseem muaj kev thov nruj.Cov neeg siv khoom hauv zos tau hais tias qhov muaj peev xwm tau txais paraquat los ntawm cov kab grey xws li kev lag luam ciam teb tau nce ntxiv.
Tsis tas li ntawd, cov khoom siv raw ntawm paraquat, pyridine, belongs rau cov kev lag luam hauv qab cov thee chemical.Tus nqi tam sim no kuj tseem ruaj khov ntawm 28,000 yuan / ton, uas yog qhov nce loj ntawm yav dhau los qis ntawm 21,000 yuan / ton, tab sis lub sijhawm ntawd 21,000 yuan / ton twb qis dua tus nqi kab ntawm 2.4 Kaum txhiab yuan / ton. .Yog li ntawd, txawm hais tias tus nqi ntawm pyridine tau nce, nws tseem yog tus nqi tsim nyog, uas yuav muaj txiaj ntsig ntxiv rau qhov nce hauv ntiaj teb kev thov rau paraquat.Ntau tus neeg tsim khoom hauv tsev paraquat kuj xav tias yuav tau txais txiaj ntsig los ntawm nws.
Muaj peev xwm ntawm cov chaw tsim khoom loj paraquat
Xyoo no, qhov kev tso tawm ntawm paraquat muaj peev xwm (los ntawm 100%) yog txwv, thiab Tuam Tshoj yog tus tsim khoom tseem ceeb ntawm paraquat.Nws tau nkag siab tias cov tuam txhab hauv tebchaws xws li Red Sun, Jiangsu Nuoen, Shandong Luba, Hebei Baofeng, Hebei Lingang, thiab Syngenta Nantong yog tsim cov tshuaj paraquat.Yav dhau los, thaum paraquat yog qhov zoo tshaj plaws, Shandong Dacheng, Sanonda, Lvfeng, Yongnong, Qiaochang, thiab Xianlong yog cov manufacturers ntawm paraquat.Nws tau nkag siab tias cov tuam txhab no tsis tsim cov tshuaj paraquat lawm.
Red Sun muaj peb tsob nroj los tsim cov paraquat.Ntawm lawv, Nanjing Red Sun Biochemical Co., Ltd. muaj peev xwm ntau lawm ntawm 8,000-10,000 tons.Nws nyob hauv Nanjing Chemical Industrial Park.Xyoo tas los, 42% ntawm cov khoom siv lub cev muaj cov khoom tsim tawm txhua hli ntawm 2,500-3,000 tons.Xyoo no, nws nres kiag li lawm..Anhui Guoxing cog muaj peev xwm ntau lawm ntawm 20,000 tons.Shandong Kexin cog muaj peev xwm ntau lawm ntawm 2,000 tons.Red Sun lub peev xwm ntau lawm yog tso tawm ntawm 70%.
Jiangsu Nuoen muaj peev xwm ntau lawm ntawm 12,000 tons ntawm paraquat, thiab qhov tseeb ntau lawm yog hais txog 10,000 tons, uas tso tawm txog 80% ntawm nws lub peev xwm;Shandong Luba muaj peev xwm ntau lawm ntawm 10,000 tons ntawm paraquat, thiab nws cov khoom siv tiag tiag yog li 7,000 tons, uas tso tawm kwv yees li 70% ntawm nws cov peev txheej ntau lawm;Hebei Baofeng kev tsim cov tshuaj paraquat yog 5,000 tons;Hebei Lingang muaj peev xwm ntau lawm ntawm 5,000 tons ntawm paraquat, thiab qhov tseeb ntau lawm yog li ntawm 3,500 tons;Syngenta Nantong muaj peev xwm ntau lawm ntawm 10,000 tons ntawm paraquat, thiab qhov tseeb ntau lawm yog li 5,000 tons.
Tsis tas li ntawd, Syngenta muaj 9,000-tuj chaw tsim khoom hauv Huddersfield cog hauv tebchaws United Kingdom thiab 1,000-tuj qhov chaw hauv Brazil.Nws tau nkag siab tias xyoo no kuj tau cuam tshuam los ntawm kev sib kis hauv lub xeev ntawm kev txo qis ntau lawm, txo kev tsim khoom los ntawm 50% ntawm ib zaug.
Cov ntsiab lus
Paraquat tseem muaj qhov txiaj ntsig tsis tuaj yeem hloov pauv hauv ntau lub tebchaws thoob ntiaj teb.Tsis tas li ntawd, tam sim no tus nqi ntawm glyphosate thiab glufosinate raws li cov neeg sib tw yog nyob rau theem siab thiab cov khoom siv nruj, uas muab ntau qhov kev xav rau qhov nce hauv kev thov rau paraquat.
Beijing Winter Olympics yuav muaj nyob rau lub Ob Hlis xyoo tom ntej.Pib txij Lub Ib Hlis Ntuj xyoo 2022, ntau lub tuam txhab loj nyob rau sab qaum teb Tuam Tshoj tau ntsib txoj kev pheej hmoo ntawm kev ncua kev tsim khoom rau 45 hnub.Tam sim no, nws muaj feem ntau, tab sis tseem muaj qee qhov tsis paub meej.Kev ncua ntawm kev tsim khoom yog ua kom ua rau muaj kev ntxhov siab ntxiv ntawm cov khoom siv thiab kev thov ntawm glyphosate thiab lwm yam khoom.Paraquat ntau lawm thiab muag khoom yuav tsum siv lub sijhawm no kom tau txais kev txhawb nqa.
Post lub sij hawm: Nov-24-2021