Kev sib piv ntawm Dimethalin thiab Competitors
Dimethylpentyl yog dinitroaniline herbicide. Nws yog tsuas yog absorbed los ntawm cov nroj tsuag sprouting buds thiab ua ke nrog cov microtubule protein nyob rau hauv cov nroj tsuag kom inhibit lub mitosis ntawm cov nroj tsuag hlwb, ua rau cov nroj tsuag tuag. Nws yog tsuas yog siv nyob rau hauv ntau yam ntawm qhuav teb, nrog rau paj rwb thiab pob kws, thiab nyob rau hauv qhuav yub yub teb. Piv nrog rau cov khoom sib tw acetochlor thiab trifluralin, dimethalin muaj kev nyab xeeb dua, uas yog nyob rau hauv txoj kab nrog kev loj hlob ntawm cov tshuaj tua kab kev nyab xeeb, kev tiv thaiv ib puag ncig thiab tsis muaj tshuaj lom. Nws cia siab tias yuav txuas ntxiv hloov acetochlor thiab trifluralin yav tom ntej.
Dimethalin muaj cov yam ntxwv ntawm kev ua haujlwm siab, dav spectrum ntawm kev tua cov nyom, tsis tshua muaj tshuaj lom thiab seem, muaj kev nyab xeeb rau tib neeg thiab tsiaj txhu, thiab muaj zog av adsorption, tsis yooj yim rau leach, thiab ib puag ncig zoo; Nws tuaj yeem siv ua ntej thiab tom qab sprouting thiab ua ntej transplanting, thiab nws lub sij hawm yog mus txog 45 ~ 60 hnub. Ib daim ntawv thov tuaj yeem daws cov nroj tsuag puas thaum lub sijhawm tag nrho cov qoob loo loj hlob.
Kev soj ntsuam ntawm txoj kev loj hlob ntawm lub ntiaj teb no dimethalin kev lag luam
1. Ntiaj teb no herbicide share
Tam sim no, cov tshuaj tua kab mob uas siv ntau tshaj plaws yog glyphosate, suav txog li 18% ntawm cov khoom lag luam tshuaj tua tsiaj thoob ntiaj teb. Cov tshuaj tua kab mob thib ob yog glyphosate, uas tsuas yog 3% ntawm kev ua lag luam thoob ntiaj teb. Lwm cov tshuaj tua kab suav nrog cov feem me me. Vim tias glyphosate thiab lwm yam tshuaj tua kab feem ntau ua rau cov qoob loo transgenic. Feem ntau ntawm cov tshuaj tua kab mob uas yuav tsum tau ua rau kev tsim khoom ntawm lwm cov qoob loo uas tsis yog GM suav nrog tsawg dua 1%, yog li qhov concentration ntawm cov tshuaj tua kab ua lag luam tsawg. Tam sim no, kev lag luam thoob ntiaj teb kev thov rau dimethalin yog ntau dua 40,000 tons, tus nqi nruab nrab kwv yees yog 55,000 yuan / ton, thiab kev lag luam muag ntim yog kwv yees li 400 lab las, suav txog 1% ~ 2% ntawm kev lag luam tshuaj tua tsiaj thoob ntiaj teb. nplai. Txij li thaum nws tuaj yeem siv los hloov lwm yam tshuaj tua kab mob phem yav tom ntej, kev lag luam nplai yuav tsum ua ob npaug vim nws qhov chaw loj hlob.
2. Kev muag khoom ntawm dimethalin
Hauv 2019, kev muag khoom thoob ntiaj teb ntawm dimethalin yog 397 lab nyiaj daus las, ua rau nws yog 12th loj tshaj plaws tshuaj tua kab mob monomer hauv ntiaj teb. Hais txog cov cheeb tsam, Tebchaws Europe yog ib qho tseem ceeb tshaj plaws ntawm cov neeg siv khoom lag luam ntawm dimethalin, suav txog 28.47% ntawm cov khoom lag luam thoob ntiaj teb; Asia suav txog 27.32%, thiab lub teb chaws muag khoom tseem ceeb yog Is Nrias teb, Tuam Tshoj thiab Nyiv; Tebchaws Asmeskas feem ntau yog nyob hauv Tebchaws Meskas, Brazil, Colombia, Ecuador thiab lwm qhov chaw; Middle East thiab Africa muaj kev muag khoom me me.
Cov ntsiab lus
Txawm hais tias dimethalin muaj txiaj ntsig zoo thiab yog ib puag ncig zoo, nws yog siv rau cov qoob loo nyiaj ntsuab xws li paj rwb thiab zaub vim nws tus nqi siab nyob rau hauv tib hom tshuaj tua kab thiab pib ua lag luam lig. Nrog kev hloov maj mam hloov ntawm lub tswv yim kev lag luam hauv tsev, qhov kev thov rau daim ntawv thov ntawm dimethalin tau nce sai heev. Tus nqi ntawm cov tshuaj nyoos siv nyob rau hauv kev ua lag luam hauv tsev tau nce sai los ntawm kwv yees li 2000 tons hauv 2012 mus rau ntau tshaj 5000 tons tam sim no, thiab tau raug txhawb nqa thiab siv rau qhuav sown nplej, pob kws thiab lwm yam qoob loo. Ntau hom kev sib xyaw ua ke tau zoo kuj tseem txhim kho sai.
Dimethalin yog nyob rau hauv txoj kab nrog kev lag luam thoob ntiaj teb ntawm maj mam hloov cov tshuaj lom thiab cov tshuaj tua kab mob siab nrog cov tshuaj tua kab hauv ib puag ncig. Nws yuav muaj qib siab dua ntawm kev sib txuam nrog kev txhim kho ntawm kev ua liaj ua teb niaj hnub nyob rau hauv lub neej yav tom ntej, thiab yuav muaj qhov chaw loj hlob ntxiv.
Post lub sij hawm: Dec-13-2022
