Dab tsi yogHaloxyfop-P-methyl
Haloxyfop-P-methyl yog ib hom tshuaj tua kab mob aryloxyphenoxypropionate. Nws yog purified thiab nquag nquag "P" isomer ntawm haloxyfop, uas ua rau nws muaj txiaj ntsig zoo dua ntawm cov ntawv thov qis dua piv rau nws cov kev sib tw racemic. Nws yog feem ntau siv raws li kev tshaj tawm - kev kho mob tshwm sim, txhais tau tias nws yog siv tom qab cov qoob loo thiab cov nroj tsuag tau sprouted.
Cov yam ntxwv tseem ceeb:
Xaiv:Nws tua cov phiaj nyom nyom yam tsis ua mob rau feem ntau cov qoob loo.
Systemic:Nws yog absorbed los ntawm cov nroj tsuag thiab txav mus thoob plaws hauv nws lub cev, ua kom muaj kev tswj kom tiav.
Los nag:Nws yog resistant rau raug ntxuav tawm los ntawm nag sai tom qab thov.
Siv tau hauv cov xwm txheej nyuaj:Nws ua tau zoo txawm tias nyob rau hauv qhov chaw txias thiab qhuav qhov twg lwm yam tshuaj tua kab mob yuav ua tsis tau.
Mechanism of Action: Yuav Ua Li Cas
Haloxyfop-P-methyl ua haujlwm los ntawm inhibiting ib qho tseem ceeb cog enzyme hu uaAcetyl -CoA carboxylase (ACCase).
Absorption thiab Translocation:Tom qab siv tshuaj tsuag, cov tshuaj tua kab mob sai sai absorbed los ntawm nplooj thiab cov hauv paus hniav ntawm cov nroj tsuag nyom. Nws yog ces translocated rau cov nroj tsuag meristematic cov ntaub so ntswg (cov ntsiab lus loj hlob), xws li cov nodes thiab cov lus qhia hauv paus.
Enzyme Inhibition:ACCase yog qhov tseem ceeb rau kev sib txuas ntawm lipids (rog thiab roj). Los ntawm inhibiting cov enzyme no, Haloxyfop-P-methyl nres tsim cov cell membranes tshiab.
Cog Tuag:Yog tias tsis muaj peev xwm tsim cov hlwb tshiab, kev loj hlob nres. Qhov yooj yim, nrawm- qhov loj hlob ntawm cov nroj tsuag yog thawj qhov cuam tshuam. Cov tsos mob feem ntau tshwm sim nyob rau hauv 48 teev, pib nrog browning ntawm nodes thiab nplooj veins. Qhov no yog ua raws li discoloration (purpling, yellowing) thiab nws thiaj li withering ntawm tag nrho cov nroj tsuag, ib tug txheej txheem yuav siv sij hawm 6-10 hnub. Thaum noj cov tshuaj tua kab mob, cov nroj tsuag yuav tsis tuag tab sis yuav stunted hnyav heev thiab tsim tau ob peb los yog tsis muaj noob.
Application Scope thiab Weed Spectrum
Cov tshuaj tua kab mob no muaj npe nrov rau nws txoj kev nyab xeeb ntawm ntau hom qoob loo broadleaf thiab nws cov txiaj ntsig tiv thaiv ntau yam ntawm cov nyom nyom.
A. Target Weeds
Cov lus hauv qab no qhia txog cov hom phiaj tseem ceeb ntawm Haloxyfop-P-methyl:
| Hom nroj tsuag | Piv txwv |
|---|---|
| Nplej xyoob | Barnyardgrass (Echinochloa crus-galli), Ntsuab foxtail (Setaria viridis), Crabgrass (Digitaria spp.), oats qus (Avena fab), Goosegrass (Eleusine indica), Johnsongrass (yeem) (Sorghum halepense) |
| Perennial Nyom | Quackgrass (Elymus rov qab los), Couch grass (Elytrigia rov ua duaJohnsongrass (rhizomatous) (Sorghum halepense), Common reed (Pragmites australis), Bermudagrass (Cynodon dactylon), Cogongrass (Cov cylindrica imperata) |
Nco tseg:Nws yogua tsis tau zoo kiag litiv thaiv broadleaf weeds thiab sedges.
B. Cov qoob loo nyab xeeb
Haloxyfop-P-methyl muaj kev nyab xeeb heev rau feem ntau cov qoob loo, suav nrog:
Teb qoob loo:Soybeans, paj rwb, txiv laum huab xeeb, paj noob hlis, qab zib beets, flax, haus luam yeeb, canola.
Zaub:Qos yaj ywm, txiv lws suav, peppers, eggplants, cucurbits (tauj taub hau, taub dag, dib), legumes (peas, taum), nplooj ntsuab ( lettuce, spinach, cabbage), carrots, dos, qej.
Orchards & Plantations:Txiv hmab txiv ntoo orchards, tshuaj yej plantations, mulberry teb.
Cov Lus Qhia Txog Kev Siv thiab Kev Ceeb Toom
Txhawm rau kom muaj txiaj ntsig zoo tshaj plaws thiab kev nyab xeeb, cov neeg siv yuav tsum ua raws li cov lus qhia hauv qab no:
Optimal Timing:Siv thaum cov nyom nyom nyob rau hauv lawv cov theem pib loj hlob, feem ntau los ntawm cov2 mus rau 5-nplooj theem. Daim ntawv thov nyob rau lub sijhawm no ua kom pom kev nqus thiab hloov chaw.
Noj ntau npaum:Qhov ntau npaum yog nyob ntawm cov nroj tsuag thiab theem kev loj hlob. Cov ntim ntau dua yog xav tau rau cov loj, zoo -tsim nroj tsuag thiab perennial hom.
Additives:Qhov ntxiv ntawmorganosilicone surfactantsyog pom zoo heev. Cov adjuvants no txhim khu kev sib kis, nkag mus, thiab siv cov tshuaj tua kab mob, txhim kho nws cov kev ua tau zoo, tshwj xeeb tshaj yog nyob rau hauv cov xwm txheej zoo.
Kev ceev faj tseem ceeb:Qhov no herbicide yogTXOJ CAI TSHIABrau tag nrho cov nyom. Kev saib xyuas hnyav yuav tsum tau ua kom tsis txhob muaj tshuaj tsuag drift mus rau thaj tsam ze ntawm cov qoob loo zoo linplej, barley, pob kws (pob zeb), nplej, thiab sorghum, vim nws yuav ua rau muaj kev puas tsuaj loj lossis tag nrho cov qoob loo poob. Cov ntawv thov yuav tsum tau ua nyob rau hauv huab cua txias.
Cov lus xaus: Haloxyfop-P-methyl ntawm ib sab
| Feature | Kev piav qhia |
|---|---|
| Hom tshuaj herbicide | Selective, Systemic, Post - tshwm sim |
| Chemical Group | Aryloxyphenoxypropionate ("FOPs") |
| Mechanism ntawm Action | ACCase Inhibitor (Tshooj lipid synthesis) |
| Lub Hom Phiaj | Txhua xyoo thiab Perennial Nyom Weeds |
| Lub zog tseem ceeb | Kev tswj zoo heev ntawm cov nyom nyom nyom (xws li Reed, Bermudagrass) |
| Kev nyab xeeb qoob loo | Muaj kev nyab xeeb rau ntau yam ntawm Broadleaf Crops |
| Kev ceev faj | Cov tshuaj lom heev rau cov qoob loo nyom (cereals);tsis txhob tsuag drift. |
Hauv kev xaus, Haloxyfop-P-methyl yog cov cuab yeej muaj zog thiab meej rau cov neeg ua liaj ua teb. Nws cov phiaj xwm phiaj xwm tawm tsam cov nyom nyom, ua ke nrog nws txoj kev nyab xeeb rau cov qoob loo broadleaf, ua rau nws muaj txiaj ntsig zoo rau kev ua liaj ua teb muaj txiaj ntsig thiab muaj txiaj ntsig.
