Taw qhia
Hauv kev ua yeeb yam thoob ntiaj teb ntawm kev ua liaj ua teb, kev ua tsov rog tsis txaus ntseeg thiab ntsiag to tau tawm tsam txhua hnub. Tsis zoo li kab mob los yog kab mob fungal, uas tuaj yeem hloov pauv raws li huab cua raws caij nyoog, cov nyom siab yog qhov tseeb ntawm kev ua lej. Txij li lub sijhawm cov noob qoob loo, nws yuav tsum sib tw nrog cov nyom heev, tob tob, thiab nrawm- cov nroj tsuag loj hlob rau cov peev txheej zoo: hnub ci, av noo, qhov chaw, thiab qhov tseem ceeb macro- khoom noj. Sab laug tsis tswj hwm, cov nroj tsuag kab mob sai sai dominated ib daim teb, choking tawm nyiaj ntsuab qoob loo, snagging sau machinery, txo yields mus rau xoom, thiab kis kab mob qoob loo nrog tshuaj lom los yog tsis xav tau cov noob.
Txhawm rau kom qhov kev sib tw vegetative no nyob rau ntawm qhov chaw, kev ua liaj ua teb niaj hnub no vam khom ntau ntawm cov tshuaj tua kab mob- cov tshuaj lom neeg tsim tshwj xeeb los cuam tshuam cov nroj tsuag kev loj hlob thiab ua rau cov nroj tsuag tuag. Cov cuab yeej no tau hloov pauv kev tsim khoom noj khoom haus, txo qis qhov xav tau ntawm kev rov ua haujlwm ntawm tes thiab tso cai rau kev siv dav dav ntawm kev txuag tillage kev coj ua uas tiv thaiv cov qauv av los ntawm kev yaig.
Txawm li cas los xij, lub sijhawm ntawm kev cia siab rau ib qho tshuaj sib xyaw kom yooj yim tshem tawm ib qho dhau lawm. Cov nroj tsuag yog cov kab mob hloov tau zoo kawg nkaus, thiab lawv lub peev xwm los hloov kho cov khoom siv tshuaj lom neeg tau hloov kho cov nroj tsuag niaj hnub no rau hauv ib ceg ntawm kev tshawb fawb biochemical. Rau cov neeg ua liaj ua teb, agronomists, thiab cov kws tshaj lij cog qoob loo, kev ua tiav kev tswj cov nroj tsuag tsis yog nyob ntawm kev xaiv cov khoom lag luam uas hais tias tua cov nroj tsuag. Hloov chaw, nws yuav tsum muaj kev nkag siab tob tob txog kev ua haujlwm ntawm cov tshuaj tua kab mob. Paub meej tias cov tshuaj no cuam tshuam li cas nrog cov nroj tsuag biology yog qhov tsim nyog yuav tsum tau ua ua ntej rau kev tsim cov tshuaj tsuag kom zoo, tiv thaiv kev nyab xeeb ntawm qoob loo, thiab khaws cov cuab yeej tshuaj muaj nqis rau yav tom ntej.
Defining the Terminology: Hom ntawm Action vs. Site of Action
To navigate the complex world of weed science, one must first master the fundamental terminology used to classify these chemical tools. Hauv kev lag luam cov ntaub ntawv, cov ntsiab lus "hom kev nqis tes ua" thiab "qhov chaw ua haujlwm" feem ntau siv sib hloov, tab sis lawv piav qhia txog cov xwm txheej lom neeg sib txawv hauv cov nroj tsuag.
Hom ntawm Action vs. Site of Action
Hom kev ua yog hais txog tag nrho cov kab ke ntawm cov xwm txheej uas tshwm sim hauv cov nroj tsuag los ntawm qhov pib nqus ntawm cov tshuaj mus rau qhov kawg ntawm lub cev tuag. Nws suav nrog qhov dav dav, macro-theem mechanism uas cov tshuaj tua kab mob cuam tshuam cov metabolism lossis kev loj hlob. Piv txwv li, ib hom kev txiav txim yuav tau piav qhia dav dav li "txoj cai loj hlob" lossis "amino acid synthesis inhibition."
Conversely, qhov chaw ntawm kev txiav txim (los yog mechanism ntawm kev txiav txim) yog heev tshwj xeeb. Nws pinpoints qhov tseeb biochemical qhov chaw, feem ntau yog ib qho tshwj xeeb enzyme, protein, los yog receptor molecule nyob rau hauv ib tug metabolic txoj kev, uas cov tshuaj tua kab mob molecule khi rau thiab deactivates. Piv txwv li, thaum glyphosate txoj kev dav ntawm kev ua yog amino acid synthesis inhibition, nws qhov chaw tshwj xeeb ntawm kev ua yog EPSP synthase enzyme. Kev nkag siab txog qhov chaw tiag tiag ntawm kev nqis tes ua yog qhov tseem ceeb vim nws tsim lub hauv paus ntawm kev faib tawm thoob ntiaj teb, xws li Weed Science Society of America (WSSA) thiab Herbicide Resistance Action Committee (HRAC) cov lej lej.
Mobility: Sib cuag vs. Systemic Pathways
Lub cev txav ntawm cov tshuaj tua kab mob hauv cov nroj tsuag cov ntaub so ntswg hnyav heev cuam tshuam lawv ua haujlwm sai npaum li cas thiab lawv yuav tsum tau thov npaum li cas.
Tiv tauj cov tshuaj tsuas yog ua rau cov kab mob tshwj xeeb uas lawv kov lub cev. Lawv tsis txav mus thoob plaws hauv cov nroj tsuag vascular system. Yog hais tias ib qho tshuaj tsuag tsuag dej tsaws rau ntawm nplooj, nws yuav hlawv cov nplooj, tab sis nws yuav tsis cuam tshuam rau cov hauv paus hniav lossis nplooj uas nyob ib sab. Vim li no, cov khoom tiv tauj yuav tsum tau tshwj xeeb tshuaj tsuag kev pab them nqi thiab zoo tshaj plaws tiv thaiv me me, txhua xyoo cov nroj tsuag.
Systemic herbicides, los ntawm qhov sib txawv, yog absorbed los ntawm cov hauv paus hniav los yog nplooj thiab translocated thoob plaws hauv cov nroj tsuag vascular network (lub xylem thiab phloem). Lawv mus los ntawm qhov chaw ntawm daim ntawv thov ncaj qha mus rau lub active loj hlob cov ntsiab lus - apical meristems - nyob rau hauv ob qho tib si tua thiab cov hauv paus hniav. Qhov kev txav mus los no ua rau cov khoom lag luam tshwj xeeb muaj peev xwm tua cov nroj tsuag loj thiab tawv, txhua xyoo hom nrog tob, overwintering cag systems.
Selectivity: Lub hom phiaj kev puas tsuaj
Lwm qhov sib txawv tseem ceeb yog kev xaiv tshuaj lom neeg. Cov tshuaj herbicides xaiv tau siv qhov sib txawv ntawm lub cev, lub cev, lossis cov metabolic ntawm cov nroj tsuag. Qhov no tso cai rau lawv tua cov nroj tsuag tshwj xeeb yam tsis ua rau muaj kev phom sij rau tus khub cog qoob loo loj hlob hauv tib kab. Ib qho piv txwv classic yog ib hom tshuaj tua kab mob uas tuaj yeem txau ncaj qha rau ntawm thaj teb ntawm cov qoob loo xws li pob kws lossis nplej, rhuav tshem cov nroj tsuag xws li velvetleaf thaum tawm hauv cov qoob loo zoo kawg nkaus.
Tsis yog - cov khoom xaiv, ntawm qhov tod tes, yog dav -spectrum killers. Lawv muaj ib hom kev nqis tes ua uas lub hom phiaj ntawm cov txheej txheem lom neeg rau yuav luag tag nrho cov nroj tsuag ntsuab. Yog li ntawd, lawv yuav raug mob lossis rhuav tshem cov nroj tsuag uas lawv tiv tauj, ua rau lawv zoo tagnrho rau kev ua ntej - cog hlawv- nqis los lossis kev lag luam tshem tawm.
Thawj hom tshuaj tua kab mob ntawm kev ua thiab lawv cov tsos mob pom
Txhawm rau kuaj xyuas cov teeb meem hauv cheeb tsam, paub txog tshuaj drift, lossis ntsuas seb daim ntawv thov tshuaj tsuag puas ua tiav, cov kws ua liaj ua teb yuav tsum paub txog cov chav kawm tshuaj thiab cov tsos mob tshwj xeeb uas lawv tsim hauv cov nroj tsuag tsom.
Amino Acid Synthesis Inhibitors
Cov nroj tsuag yuav tsum tau tsim lawv tus kheej cov amino acids tseem ceeb los tsim cov proteins thiab txhawb lub neej. Ntau tsev neeg loj ntawm cov tshuaj tua kab mob ua haujlwm los ntawm kev xaiv cov enzymes ua haujlwm rau txoj hauv kev no.
Acetolactate Synthase (ALS) inhibitors (WSSA Group 2) thiab EPSP Synthase inhibitors (WSSA Group 9, uas suav nrog glyphosate) yog cov piv txwv classic. Thaum cov nroj tsuag tau kho nrog cov amino acid inhibitor, kev tsim cov proteins tshiab nres tam sim ntawd. Vim tias cov nroj tsuag yuav tsum tau tso nws cov protein uas twb muaj lawm ua ntej qhov kev sib tsoo ntawm cov txheej txheem tshwm sim, cov tsos mob pom tshwm sim qeeb heev, feem ntau siv li ib mus rau peb lub lis piam kom tshwm sim.
Cov tsos mob thawj zaug yog qhov txawv ntawm cov nplooj yau tshaj plaws, hu ua chlorosis, thaum cov nplooj laus nyob ib ntus tseem ntsuab. Raws li cov ntsiab lus loj hlob tshaib plab, kev loj hlob tsis tu ncua, cov hlab ntsha hauv cov nplooj tuaj yeem tig xim liab lossis ntshav, thiab cov nroj tsuag maj mam ua tiav necrosis thiab tuag.
Photosynthetic thiab Cell Membrane Disruptors
Qee cov chav kawm tshuaj xa cov tshuab nrawm dua, hnyav dua rau cov nroj tsuag biology los ntawm kev tsom mus rau cov tshuab cellular uas tau tsav los ntawm lub hnub ci.
Photosystem II (PSII) inhibitors (WSSA Pawg 5, xws li atrazine) khi rau cov proteins tshwj xeeb hauv chloroplasts, thaiv cov saw hlau thauj hluav taws xob uas xav tau rau photosynthesis. Qhov kev thaiv no ua rau muaj kev phom sij loj ntawm - lub zog molecules uas rhuav tshem cov cell membranes.
Protoporphyrinogen Oxidase (PPO) inhibitors (WSSA Pawg 14) cuam tshuam cov enzyme tseem ceeb hauv chlorophyll synthesis, ua rau muaj kev puas tsuaj loj ntawm cov tebchaw uas, thaum raug lub teeb, tsim kua muag ntawm phab ntsa sib nrug.
Cov tsos mob ntawm qhov pom ntawm cov membrane disruptors yog sai thiab unmistakable. Tsis pub dhau ob peb teev tom qab raug tshav ntuj, cov nplooj uas kho tau coj mus rau hauv dej -soaked, tsos tsaus nti. Cov ntaub so ntswg sai sai tig xim av, dries tawm, thiab hlawv mus rau ib tug crisp. Vim tias cov khoom no feem ntau muaj kev sib cuag lossis txwv tsis pub txav mus los, lawv tawm ntawm qhov sib txawv, qhov chaw kub hnyiab nyob qhov twg los xij ntawm cov tshuaj tsuag tsuag.
Growth Regulators thiab Auxin Mimics
Synthetic auxins (WSSA Group 4, suav nrog 2,4-D thiab dicamba) sawv cev rau qee yam ntawm cov laus thiab feem ntau siv tshuaj tua kab mob hauv keeb kwm. Cov tebchaw no ua rau cov nroj tsuag loj hlob hormones, tab sis lawv tau tsim kom muaj kev ruaj khov, txhais tau tias cov nroj tsuag tsis tuaj yeem tawg tau yooj yim.
Thaum cov nroj tsuag broadleaf absorbs ib qho auxin mimic, nws qhov kev loj hlob sab hauv yuav ua rau tsis sib haum xeeb. Cells nyob rau hauv stems thiab nplooj nplooj veins pib elongate sai thiab unevenly, thaum lwm yam cellular txheej txheem nyob twj ywm.
Cov tsos mob pom tshwm sim yog qhov txaus ntshai thiab raug xa mus ua epinasty. Cov stems twist mus rau hauv corkscrew duab, nplooj khob upward los yog downward, thiab tag nrho cov nroj tsuag warps rau hauv distorted mutations. Nyob rau hauv ib hnub, qhov chaotic, uncontrolled kev loj hlob collapses cov nroj tsuag vascular system, tiv thaiv dej thauj thiab ua rau tuag.
Seedling Loj hlob thiab Lipid Synthesis Inhibitors
Qee cov khoom lag luam tsom cov nroj tsuag ua ntej lawv tuaj yeem tawm hauv av. Mitosis inhibitors (WSSA Group 3) thiab ntev heev -chain fatty acid (VLCFA) inhibitors (WSSA Group 15) lub hom phiaj germinating nroj tsuag. Lawv cuam tshuam kev faib tawm ntawm tes los yog thaiv cov synthesis ntawm lipids tseem ceeb rau kev tsim cov cell cuticles tshiab thiab daim nyias nyias nyob rau hauv tawm tua thiab cov hauv paus hniav.
Cov nroj tsuag cuam tshuam los ntawm cov khoom ua ntej - cov khoom tshwm sim feem ntau tuag hauv av thiab tsis ntog. Yog hais tias lawv tswj ua txhaum cov av, lawv ua rau stunting loj heev. Cov nyom tuaj yeem ua tsis tau los ntawm lub voj voog, noj cov dos -zoo li lub ntsej muag, thaum broadleaf seedlings nthuav tawm cov nplooj crinkled thiab luv luv, club-zoo li hauv paus system.
Ua kom muaj txiaj ntsig zoo tshaj plaws los ntawm kev siv tswv yim
Xaiv ib lub molecule nrog hom zoo meej ntawm kev ua yog tsuas yog cov qauv qauv; Kev ua tiav kev tswj hwm tshwj xeeb hauv thaj teb yuav tsum tau ua raws li cov tshuaj chemistry nrog cov tswv yim thov cov tswv yim thiab cov qhov rais ib puag ncig zoo.
Ua ntej-Emergence vs. Post-Tim Nkij teb chaws
Qhov kev txiav txim siab tseem ceeb tshaj plaws yog seb puas yuav siv cov av- siv ua ntej - txheej txheem tshwm sim lossis foliar - siv ncej- tshuaj tsuag tshwm sim.
Ua ntej- kev kho mob tshwm sim yog siv ncaj qha rau cov av liab qab ua ntej cov qoob loo thiab cov nroj tsuag germinate. Cov notshuaj tua kab mobzaum hauv txheej saum toj kawg nkaus ntawm cov av matrix, tsim cov tshuaj tiv thaiv. Raws li cov nroj tsuag nqus cov av noo kom germinate, lawv ib txhij noj cov tshuaj, uas tua lawv ua ntej lawv tuaj yeem tawm thiab sib tw nrog cov qoob loo. Txhawm rau ua ntej - cov khoom lag luam tshwm sim ua haujlwm, lawv yuav tsum ua kom dej nag lossis dej ntws sai sai tom qab thov kom tshem cov tshuaj sib npaug mus rau hauv ob peb nti ntawm cov av uas cov noob nroj tsuag nyob.
Post{0}} cov ntawv thov tshwm sim raug tua tom qab ob qho tib si cov qoob loo thiab cov nroj tsuag tau tawm hauv av. Lub tswv yim no tso cai rau tus neeg cog qoob loo txhawm rau txheeb xyuas cov nroj tsuag tiag tiag tam sim no thiab xaiv daim ntawv qhia tshuaj tsom. Txawm li cas los xij, tom qab- qhov kev vam meej tshwm sim poob qis zuj zus raws li cov nroj tsuag loj tuaj. Cov tshuaj uas xa 99% kev tswj hwm ntawm ob- ntiv tes cov nroj tsuag tuaj yeem muab tsawg dua 50% kev tswj hwm ntawm rau - ntiv tes cov nroj tsuag, vim tias cov nroj tsuag loj muaj cov khoom noj loj dua los ua kom cov tshuaj lom.
Environmental Dynamics
Cov huab cua hnyav hnyav qhia tias cov nroj tsuag nqus tau zoo npaum li cas thiab metabolizes daim ntawv thov tshuaj tua kab mob. Nroj tsuag yog cov kab mob uas muaj zog heev; Thaum huab cua sov, tshav ntuj, thiab av noo noo ntau, cov nroj tsuag tau nquag transpiring thiab loj hlob. Nyob rau hauv cov xwm txheej zoo no, cov nroj tsuag nqus cov foliar txau sai sai thiab hloov cov khoom lag luam nrawm nrawm mus rau lawv cov hauv paus hniav, ua kom muaj txiaj ntsig zoo.
Hloov pauv, thaum cov nroj tsuag raug kev nyuaj siab ib puag ncig-xws li drought ntev, cua sov heev, los yog txias txias tsis raws caij nyoog- lawv nkag mus rau hauv kev tiv thaiv, muaj sia nyob. Yuav kom txuag tau noo noo, lawv kaw lawv lub stomata thiab thicken lub waxy cuticle txheej ntawm lawv nplooj. Tsis tas li ntawd, lawv cov vascular translocation qeeb mus rau qhov nkag. Yog tias ib qho kev tshaj tawm - tshwm sim cov tshuaj tua kab mob tshwm sim thaum lub caij ntuj qhuav, cov tshuaj yuav tawm tsam kom nkag mus rau cov nplooj nplooj tuab, thiab qhov me me nkag mus yuav nyob twj ywm es tsis ncav cuag cov ntsiab lus loj hlob, ua rau muaj kev tswj xyuas tsis zoo.
Water Quality thiab Adjuvants
Cov dej hauv lub tank sprayer ua rau ntau tshaj 99% ntawm cov tshuaj tsuag zaum kawg, ua kom cov dej zoo yog qhov tseem ceeb ntawm qhov sib txawv. Cov dej tawv muaj cov ntsiab lus siab ntawm magnesium thiab calcium cations. Cov ions zoo li no khi nruj rau cov tshuaj tua kab mob tsis zoo (xws li glyphosate lossis glufosinate), ua rau lawv tsis zoo ua ntej lawv tawm ntawm lub tshuab nozzle. Txhawm rau tiv thaiv qhov no, cov neeg cog qoob loo yuav tsum ntxiv cov dej txias xws li ammonium sulfate (AMS) los khi cov dej ntxhia ua ntej sib xyaw hauv cov tshuaj.
Tsis tas li ntawd, vim tias muaj ntau cov nplooj ntoo tau npog rau hauv cov dej uas muaj dej ntau, waxy cuticle tsim los tua cov dej, ntxiv cov adjuvants tshwj xeeb yog tsis muaj - sib tham. Surfactants txo qis qhov nro ntawm cov dej ntws, ua rau nws flatten tawm thiab coated nplooj ntau dua li dov tawm. Cov roj qoob loo concentrates (COC) thiab methylated noob roj (MSO) mus rau ib kauj ruam ntxiv, nquag softening thiab nkag mus rau lub cuticle waxy mus ferry lub active tshuaj tshuaj molecules ncaj qha mus rau hauv cov nroj tsuag hlwb.
Resistance Management thiab Sustainable Weed Control
Kev hloov pauv sai thiab nthuav dav ntawm cov tshuaj tua kab mob kuj yog qhov sib tw loj tshaj plaws ntawm agronomic ntawm nees nkaum-ib xyoo pua. Thaum cov neeg ua liaj ua teb cia siab rau ib qho chaw ntawm kev nqis tes ua txhua xyoo, lawv siv cov kev hloov pauv hloov mus rau qhov chaw. Tawm ntawm cov pejxeem ntawm billions ntawm cov nroj tsuag, ib feem me me yuav muaj lub ntuj tsim, kev hloov pauv caj ces uas tso cai rau lawv kom muaj sia nyob ntawm cov tshuaj tshwj xeeb. Yog tias cov tshuaj tib yam no tau siv ntau zaus, cov nroj tsuag raug tshem tawm, ua rau cov neeg muaj sia nyob hloov pauv mus hla - pollinate, multiply, thiab tag nrho cov toj roob hauv pes.
Kev txiav txim siab ntawm Txoj Cai: Lub Hwj Chim ntawm Kev Sib Hloov Tshuaj
Txhawm rau tiv thaiv kev loj hlob ntawm cov "superweeds," cov neeg cog qoob loo yuav tsum txav mus deb ntawm kev soj ntsuam cov khoom lag luam los ntawm lawv cov npe lag luam thiab tsom nruj me ntsis rau kev hloov cov chaw sib txawv ntawm kev nqis tes ua. Txhawm rau ua kom cov txheej txheem no yooj yim, lub koom haum tswj hwm thoob ntiaj teb tau txiav txim siab tias tag nrho cov ntim khoom lag luam kom meej meej qhia WSSA Group tus lej lossis HRAC Pawg tsab ntawv nyob rau sab xub ntiag.
Kev sib hloov tshuaj muaj tseeb txhais tau tias kom ntseeg tau tias daim ntawv thov sib law liag thoob plaws lub voj voog qoob loo-thiab hla xyoo qoob loo- vam khom rau cov lej sib txawv. Yog tias ALS inhibitor (Pawg 2) siv rau lub caij nplooj ntoo hlav, ua raws li- daim ntawv thov yuav tsum siv cov txheej txheem sib txawv, xws li PPO inhibitor (Group 14) lossis cov khoom glufosinate (Pab 10).
Tsis tas li ntawd, kev siv ntau- qhov chaw tank sib xyaw yog ib qho kev tiv thaiv tshwj xeeb. Los ntawm kev siv cov tshuaj tsuag uas sib xyaw ua ke ntawm ob lossis ntau tus lej sib txawv uas lub hom phiaj sib txawv ntawm cov enzymes ib txhij, txhua yam nroj tsuag uas tshwm sim los ntawm cov tshuaj tiv thaiv rau pawg A raug tshem tawm sai heev los ntawm Pab Pawg B, tiv thaiv cov noob tiv thaiv tsis pub dhau mus rau tiam tom ntej.
Integrated Weed Management (IWM)
Tshuaj yuav tsum tsis txhob yog ib txoj kab ntawm kev tiv thaiv cov nroj tsuag encroachment. Qhov kawg evolution ntawm kev tiv thaiv qoob loo niaj hnub no yog Integrated Weed Management (IWM)-ib qho kev sib koom ua ke uas sib koom ua ke cov tshuaj muaj tseeb nrog kev coj noj coj ua, kev siv tshuab, thiab kev siv tshuaj lom neeg kom txo tau tag nrho kev cia siab ntawm cov khoom siv hluavtaws.
Npog cov qoob loo: Kev cog qoob loo ntom ntom npog cov qoob loo xws li cereal rye rau lub cev ntaub pua plag hauv av, thaiv tshav ntuj los ntawm kev ncav cuag cov noob nroj thiab txo qis thaum ntxov - caij nplooj ntoos hlav germination.
Narrow Row Spacing: Kho qhov chaw cog qoob loo rau cov kab nqaim tso cai rau cov qoob loo nyiaj ntsuab kaw sai, shading tawm cov nroj tsuag thiab tshem tawm lawv txoj kev nkag mus rau hnub ci.
Mechanical Cultivation: Siv precision, GPS-coj inter- kab cultivators mus rau lub cev cuam tshuam lub hauv paus system ntawm kab qoob loo yam tsis cuam tshuam cov av noj qab haus huv ncaj qha rau hauv qab cov nyiaj ntsuab qoob loo.
Noob Destructors: Ua haujlwm niaj hnub sau qoob loo- lub sij hawm cov noob cuam tshuam mills uas pulverize cov noob nroj thaum lawv dhau los ntawm kev sib sau ua ke, tiv thaiv lawv rov qab los rau hauv av seedbank.
Los ntawm kev siv ntau hom kev sib txawv ntawm cov tsis yog - tshuaj tactics, cov neeg cog qoob loo txo qis tag nrho cov nroj tsuag seedbank ceev, txo qhov zaus thiab kev siv tshuaj lom neeg. Txoj kev sib npaug no txo qis qhov kev xaiv hloov pauv hloov siab tso rau ntawm peb cov khoom siv tshuaj lom neeg uas twb muaj lawm, ua kom lawv muaj txiaj ntsig zoo rau cov tiam tom ntej.
Xaus
Kev lag luam ua liaj ua teb niaj hnub no tau ua haujlwm nrog lub hom phiaj tseem ceeb: pub zaub mov kom nthuav dav thoob ntiaj teb cov pej xeem thaum nquag ua rau nws qhov chaw ib puag ncig thiab tswj kev lag luam muaj txiaj ntsig. Nyob rau hauv qhov sib npaug me me no, cov tshuaj tua kab mob tseem yog ib qho tseem ceeb ntawm kev ruaj ntseg zaub mov, ua kev tiv thaiv tsis tuaj yeem tiv thaiv kev puas tsuaj, tawm los - nyiag muaj peev xwm ntawm kev sib tw nyom.
Txawm li cas los xij, cov hnub tsis yooj yim, dav -spectrum tshuaj ntsuab tswj tau ruaj khov yav dhau los. Kev ua tiav zoo ib yam, tus nqi- siv tau, thiab kev tswj cov nroj tsuag kom nyab xeeb yuav tsum muaj kev hloov pauv ntawm daim ntawv thov mus rau qib siab biochemical stewardship. Nws xav kom cov kws tshaj lij ua liaj ua teb kom nkag siab txog cov kev hloov maj mam ntawm cov qauv ntawm kev ua thiab qhov chaw ntawm kev ua, paub txog qhov pom kev kos npe ntawm cov tsev neeg tshuaj sib txawv, thiab ua tib zoo saib xyuas lub sijhawm thov, dej txias, thiab kev ntxhov siab ib puag ncig.
Thaum kawg, lub neej yav tom ntej ntawm kev tswj cov nroj tsuag muaj kev ruaj ntseg nyob hauv kev khaws cia ntawm chemistry los ntawm kev hloov pauv. Los ntawm kev sib hloov WSSA/HRAC pab pawg tus lej, tsim ntau- qhov chaw sib xyaw tank, thiab vaj tse cov ntaub ntawv siv tshuaj nyob rau hauv ib qho muaj zog, ntau-faceted Integrated Weed Management moj khaum, lub ntiaj teb ua liaj ua teb zej zog tuaj yeem ua tiav qhov kev hem thawj ntawm kev tawm tsam. Qhov kev sib npaug, kev tshawb fawb hauv av ua kom ntseeg tau tias peb thaj chaw huv si, peb cov khoom noj khoom haus nyob ruaj khov, thiab peb cov kab ke kev ua liaj ua teb tseem nyob ruaj khov rau ntau xyoo tom ntej.
