Ua nws cov av-thov kev thov ntawm cog lossis postemergence daim ntawv thov, tshuaj tsuag txav cia tseem yog qhov teeb meem nagging rau cov tswv cog.
“Drift is an emotionally charged issue. No one likes drift; no one likes being drifted on,” said Jason Deveau, application technology specialist in the Agriculture Development Branch of the Ontario Ministry of Agriculture, Food and Rural Affairs. Deveau spoke on spray drift at the most recent Great Lakes Fruit, Vegetable, and Farm Market EXPO, held virtually in 2020.
Every spray application drifts to some degree and there is no single, best solution. “Drift will happen,” Deveau said, “but there are a whole series of activities you can do to reduce the risk.”
Kev cob qhia tus neeg teb xov tooj, saib huab cua, siv cov khoom siv kom zoo thiab paub txog qhov chaw nyob ze, thaj chaw muaj txhua qhov tseem ceeb, tab sis kev tswj hwm drift pib nrog kev nkag siab nozzles thiab lawv qhov cuam tshuam rau qhov loj me. Tag nrho cov nozzles tsim ntau yam ntawm cov khoom siv ntawm txhua qhov siab.
Deveau hais tias, "Lub suab tawv me me tseem tsim qee cov tee dej me me thiab." Txawm tias qhov dej ntws tsis tshua muaj dej tsis zoo no pom zoo rau cov khoom lag luam uas muaj kev nyab xeeb, zoo li dicamba, tsim tawm ob peb qhov tee me me.
Cov tshuaj tsuag ntim tsim tawm los ntawm lub pob zeb thiab npaj los ntawm qhov dej ntws los ntawm qhov me me txog qhov loj tshaj plaws yuav tsim ib qho qauv zoo nkauj, lub tswb nrov. Feem ntau cov tshuaj tsuag ib lub pob hluav taws xob tsis tuaj yeem ntog hauv cov dej ntws ntawm qhov ntau thiab tsawg los piav qhia los ntawm qhov nruab nrab lub taub. Qhov no yog nyob hauv nruab nrab ntawm lub tswb-puab nkhaus. Muaj tsawg txau ntim khi rau hauv qhov me me thiab cov tee dej loj tshaj plaws, uas yog vim li cas cov nkhaus tapers tawm rau txhua qhov kawg.
Txawm li cas los xij, kev sib raug zoo ntawm cov tshuaj tsuag ntim, qhov loj me thiab qhov poob ntawm qhov me me yog qhov tsis zoo. Txawm hais tias muaj qhov ntim tsawg heev nyob rau hauv cov kua dej me me, lawv nyob deb dhau qhov ntau dua ntawm cov tee dej loj dua. Txhawm rau pab cov cog cog kev ua txhua yam ntawm no, Asmeskas Kev Koom Tes ntawm Kev Ua Qoob Loo ntawm Kev Ua Qoob Loo thiab Kev Txheeb Hluav Taws Xob tau tsim cov qauv txheej txheem uas muab cov suab lus piv rau cov qauv uas paub, uas tso cai rau lawv tau qeb los ntawm Zoo heev txog Ultra Coarse.
Cov ntaub ntawv no tuaj yeem siv txhawm rau twv cov tshuaj txau qhov uas muaj peev xwm txav tau, thiab cov tshuaj tsuag qhov peev xwm ua kom muab kev pabcuam tau tsim nyog. Qee daim ntawv lo tshuaj tua kab qhia cov qeb tsis pub tus me nyuam txo qis ntawm qhov muaj peev xwm txav deb. Yog tias tsis muaj kev taw qhia, cov neeg cog qoob loo yuav tsum siv cov coarsest nozzle uas lawv tuaj yeem muab tau kev fajseeb txaus.
Deroau hais tias "Droplet kev txav mus los tsis muaj kev paub ua ntej nrog cov tee me me, thiab lawv feem ntau yuav txav mus los."
Cov khoom tsis haum xws li dicamba yog qhov kev sib tw tshwj xeeb vim tias lawv tuaj yeem ua kom ntev ntev tom qab thov, nyob ntawm huab cua puag. Kub hnub nrog cov av noo ceev hloov siab rau vapor. Yog tias qhov kev hloov pauv no tshwm sim thaum lub caij hloov thermal, lub vapor tuaj yeem tsim nyob rau hauv txheej rov qab ua ntej tsiv mus deb hauv cov lus qhia uas tsis tau qhia.
Txau rau huab cua txias dua lossis huab cua ntub lossis hnub huab cua yog cov tswv yim zoo los tswj qhov teeb meem vim tias vaporization qeeb dua hauv cov xwm txheej no. Saib xyuas kev kwv yees kev twv ntawm qhov pom tseeb, ntshiab, txias yav tsaus ntuj uas muaj txiaj ntsig zoo rau kev txhim kho thermal inversions kuj tseem ceeb. Xaiv lub caij nyoog ntawm lub hnub siv tshuaj tsuag tuaj yeem nyuaj.
Txau thaum nruab hnub yuav txhais tau tias txau thaum nws kub thiab qhuav, uas ua kom muaj vaporization. Muaj kuj yog kev txhawj xeeb ntawm cov tshuaj tua kab ua rau ntawm pollinators. Txau thaum hmo ntuj txhais tau hais tias txau thaum nws nyob twj ywm, tab sis tom qab ntawd nws muaj qhov pheej hmoo ntawm lub thev naus laus zis hloov pauv, uas tuaj yeem nqa vapor txav mus rau mais.
Txhua tus xav kom ua kom txau nrawm, tab sis tsuas yog siv cov kev nrawm nrawm uas tseem cia cov tshuaj tsuag kom maj mam tso kom qis.
Deveau tau hais tias "Qhov nrawm nrawm dua, muaj pob tawg ntau dua, thiab cov tshuaj tsuag ntau tuaj yeem ntog tawm," “Tsav tsheb khiav ceev tsis yog txoj hauv kev ua kom nrawm. Cov roj sib xyaw thiab thauj khoom yog txoj hauv kev rau kev txau ceev. " Cov cai yauv tuaj yeem txhim kho kev tiv thaiv thiab txo qis, tab sis kuj tseem tuaj yeem ua rau cov qoob loo raug mob tsawg dua li cov kev mob zoo tagnrho. Kev sib raug zoo yog txhua qhov teeb meem, ib yam nkaus. Ntsuam xyuas koj lub tshuab tshuaj txau los ntawm kev txau rau ntawm cov ntawv rwg dej kom pom ib daim duab ntawm koj tus qauv tsuag. Deveau tau hais tias, "Daim ntawv yog qhov pheej yig thiab muab cov lus teb rov qab."
Cov ntaub ntawv ntau ntxiv ntawm kev tswj cov tshuaj tsuag dej ntws tuaj yeem pom ntawm
thov Vajtswv101.comCov. Lub vev xaib yog cov khoom tau pub dawb uas tau tuav hauv Canada los ntawm Deveau thiab lwm tus kws tshaj lij thev naus laus zis. Deveau tau hais tias "Muaj ntau txoj hauv kev tshuaj tua kab tuaj yeem mus rau qhov chaw uas peb tsis xav kom lawv mus," tab sis muaj kev coj ua zoo tshaj plaws hauv kev txau ua qoob loo kom txo tau txoj kev phom sij.