Ayini ama-Pre-Emergent herbicides?

Ama-pre-Emergent herbicidesimithi yokubulala ukhula esetshenziswa ngaphambi kokuhluma kokhula, ngenhloso yokuqala yokuvimbela ukuhluma nokukhula kwembewu yokhula. Le mithi yokubulala ukhula ivame ukusetshenziswa ekuqaleni kwentwasahlobo noma ekwindla futhi iyasebenza ekucindezeleni ukuhluma kwengonyakafuthiukhula olungapheli.

Indlela Imithi Yokubulala Ukhula Esafufusa Esebenza Ngayo

Ama-pre-Emergent herbicides asebenza ngokuphazamisa inqubo yokuhluma kwembewu yokhula. La makhemikhali akha umgoqo emhlabathini, futhi lapho imbewu yokhula ihlangana nalesi sivimbelo, ithintwa amakhemikhali ngaleyo ndlela ingakwazi ukumila kahle.

Izinzuzo zemithi yokubulala ukhula engakaphumi

Ukulawula isikhathi eside: Ama-herbicides avimbelayo angahlinzeka ngokulawula ukhula kuze kube yizinyanga ezimbalwa.

Umsebenzi Owehlisiwe Wezandla: Ukusebenzisa imithi yokubulala ukhula Ngaphambi Kokuvela kunganciphisa isidingo sokugunda sekwephuzile kwesizini, konga isikhathi kanye nomsebenzi.

Ukuvikelwa kwezitshalo: Ukusebenzisa ama-Pre-Emergent herbicides ngaphambi kokuvela kwezitshalo kuvikela izitshalo ekuqhudelaneni kokhula futhi kukhuthaze ukukhula okunempilo.

Uyini umuthi wokubulala ukhula wangemva kokuvela?

Imithi yokubulala ukhula ngemva kokuvelayimithi yokubulala ukhula esetshenziswa ngemva kokuba ukhula selumile futhi seluqale ukukhula. Ngokuvamile zisetshenziselwa ukususa ngokushesha ukhula oseluvele lukhulile futhi olufanele ukulawula ukhula ngezikhathi ezihlukahlukene zokukhula.

Isebenza kanjani imithi yokubulala ukhula ngemuva kokuvela

Imithi yokubulala ukhula ngemva kokuvela ibangela ukuba ukhula lufe ngokusebenza ngokuqondile emaqabunga noma ezimpandeni zalo, lucekele phansi izicubu zalo zamangqamuzana. Ngokusekelwe endleleni yokusebenza, imithi yokubulala ukhula yakamuva ingahlukaniswa ngokwezigabaukukhetha nokungakhethiizinhlobo.

Izinzuzo zemithi yokubulala ukhula ngemva kokuvela

Umphumela osheshayo: Ama-herbicides angemuva kokuvela angabulala ukhula olukhula ngokushesha, ngomphumela osheshayo.

Ukusetshenziswa okuguquguqukayo: zingasetshenziswa kunoma yisiphi isigaba sokukhula kokhula futhi zivumelana nezimo kakhulu.

Ukulawula okunembayo: Imithi yokubulala ukhula ngemva kokuhluma ingakhomba ngokuqondile ukhula oluthile ngaphandle kokulimaza izitshalo nezitshalo ezizungezile.

I-Pre-Emergent vs. Post-Emergent Herbicides

Imiphumela ehlala isikhathi eside

Ama-herbicides avikelayo ahlala isikhathi eside futhi ahlinzeka ngokulawula ukhula okuhlala isikhathi eside, kanti ama-postemergent herbicides asetshenziswa kakhulu ekususeni ngokushesha ukhula oselukhulile futhi olunomphumela wesikhashana.

Isikhathi sokufaka isicelo

Ama-herbicides okuvimbela asetshenziswa ngaphambi kokuba ukhula luqhume, ngokuvamile entwasahlobo noma ekwindla, kuyilapho ama-herbicides enkathi yakamuva asetshenziswa ngemva kokuba ukhula selumile futhi lukhulile futhi lungasetshenziswa phakathi nenkathi yokukhula.

Ibanga lohlelo lokusebenza

Ama-herbicides okuvikela asetshenziselwa ukulawula ukhula ezindaweni ezinkulu, ikakhulukazi ngaphambi kokutshala izitshalo; ama-herbicides enkathi yakamuva asetshenziselwa ukulawula ukhula oseluvele lukhulile, ikakhulukazi ekulimeni kwezitshalo kanye nokuphathwa kwemvelo.

Yimuphi umuthi obulala ukhula okufanele uwusebenzise?

Khetha ngokusekelwe ezinhlotsheni zokhula

Ukwazi uhlobo lokhula okudingeka ululawule kuyisihluthulelo sokukhetha isibulala-khula esifanele. Ama-herbicides ahlukene anemiphumela ehlukene ezinhlotsheni ezahlukene zokhula.

Khetha ngokusekelwe ohlotsheni lokunqampuna

Lapho ukhetha umuthi wokubulala ukhula, kufanele ucabangele uhlobo lwesitshalo kanye nesigaba sokukhula. Eminye imithi yokubulala ukhula ingase ibe yingozi ezitshalweni ezithile ngakho-ke kudingeka ikhethwe ngokucophelela.

Ukukhetha okusekelwe ezimweni zemvelo

Izimo zemvelo, njengesimo sezulu, uhlobo lwenhlabathi kanye nemvula, nazo zingaphazamisa ukusebenza kahle kwemithi yokubulala ukhula. Lezi zici kufanele zibhekwe lapho kukhethwa ama-herbicides ukuze kutholakale imiphumela engcono kakhulu.

Kutuswa imithi yokubulala ukhula ngaphambi kokuvela kwayo

1. I-Metolachlor

Isingeniso: I-Metolachlor iwumuthi wokuvikela ukhula obanzi wezinhlobo eziningi zezitshalo, okuhlanganisa ummbila, ubhontshisi wesoya, nokotini, ovimbela ukukhula kokhula ngokuvimbela ukuhluma kwembewu yawo.

Izinzuzo:

Isebenza kunhlobonhlobo yeukhula lonyaka

Ubude besikhathi eside, ukunikeza ukulawula ukhula kuze kufike ezinyangeni ezimbalwa

Iphephile izitshalo futhi isetshenziswa kabanzi

I-S-Metolachlor 960g/L EC

2. I-Glyphosate

I-Synopsis: I-Glyphosate isibulala-zinambuzane esibanzi esivame ukusetshenziswa ezindaweni ezinkulu zezolimo nezingezona ezokulima ukuze kulawuleke ukhula oluqinile.

Izinzuzo:

I-spectrum ebanzi, ephumelelayo ngokumelene nezinhlobonhlobo zokhula

Isikhathi esifushane sensalela nomthelela ophansi kwezemvelo

Ingasetshenziswa njengomuthi wokuvimbela ukhula ezindaweni eziphansi.

I-Herbicide Glyphosate 480g/l SL

3. I-Trifluralin

I-Synopsis: I-Trifluralin isetshenziswa ukotini, ubhontshisi, imifino kanye nezinye izitshalo, ikakhulukazi ukulawula ukhula ngokuphazamisa ukuhluma kwembewu yokhula nokukhula kwezimpande.

Izinzuzo:

Umphumela omuhle ezinhlobonhlobo zokhula lwaminyaka yonke

Yakha umgoqo wokhula ohlala isikhathi eside emhlabathini

Uhlu olubanzi lwezinhlelo zokusebenza, eziphephile ezitshalweni eziningi

4. I-Dichlormid

I-Synopsis: I-Dichlormid isetshenziselwa kakhulu ukulawula ukhula emasimini ommbila, ngokucindezela kahle kokubili ukhula lwaminyaka yonke nolungapheli.

Izinzuzo:

Kunikezelwe emasimini ommbila ngomphumela omangalisayo

Vimbela kakhulu ukuhluma kwembewu yokhula.

Iphephe kakhulu futhi ayinabungozi ekukhuleni kommbila

Kunconyiwe Umuthi Wokubulala Ukhula Ngemva kokuvela

1. I-Paraquat

Isingeniso: I-Paraquat iwumuthi wokubulala ukhula ongakhethiwe ngemuva kokuvela, olungele ukususa zonke izinhlobo zokhula, ngokubhubhisa ngokushesha izicubu zamangqamuzana okhula, okuholela ekufeni ngokushesha kokhula.

Izinzuzo:

Ukulawula ukhula ngendlela esheshayo futhi ephumelelayo

Isebenza ezinhlobonhlobo zokhula, kuhlanganise nokhula oluqhubekayo

I-Flexible futhi ingasetshenziswa ezinhlobonhlobo zezindawo

I-Paraquat 20% SL

2. 2,4-D (2,4-dichlorophenoxyacetic acid)

Isingeniso: I-2,4-D isibulala-zinambuzane esikhethiwe senkathi yakamuva evame ukusetshenziswa ukolweni, ummbila, ubhontshisi wesoya nezinye izitshalo, ngokulawula kahle ukhula lwamaqabunga abanzi ngokuyinhloko.

Izinzuzo:

Ikhetha kakhulu, iphephile ezitshalweni

Isebenza kahle kakhulu okhulani lwamaqabunga abanzi

Uhla olubanzi lwezinhlelo zokusebenza, kulula ukuzisebenzisa

3. I-Flumioxazin

I-Synopsis: I-Flumioxazin iwumuthi wokubulala ukhula wesizini sekwephuzile obanzi kabhontshisi wesoya, amakinati, ukotini nezinye izitshalo obangela ukufa kokhula ngokuvimbela ukwakheka kwe-chlorophyll.

Izinzuzo:

Isebenza ezinhlobonhlobo zokhula, okuhlanganisa nokhula okunzima ukufinyelela kulo

Ukuphikelela, ukunikeza ukulawula isikhathi eside

Kulula ukuyisebenzisa futhi iphephile izitshalo

4. Glufosinate

I-Synopsis: I-Glufosinate iwumuthi wokubulala ukhula wesizini sekwephuzile ongakhethi wokulawula ukhula ezinsimini zezithelo, izivini kanye nezindawo ezingezona izitshalo, ezihlinzeka ngokususa ngokushesha nangempumelelo kwezinhlobonhlobo zokhula.

Izinzuzo:

Ukulawulwa kokhula okubanzi okunemiphumela emihle kakhulu

Ukulawula kahle ukhula ezinsimini zezithelo nezivini

Esebenza ngokushesha futhi evumelana nezimo

I-Herbicide Glufosinate Ammonium 200g/l SL

Le michiza yokubulala ukhula inezinzuzo zayo eziyingqayizivele ezimweni ezihlukene zokusetshenziswa, futhi ngokukhethwa okunengqondo nokusetshenziswa, ukulawula ukhula okuphumelelayo kungenziwa ukuze kuvikelwe ukukhula okunempilo kwezitshalo.

Ungakhetha kanjani i-herbicide efanele?Idinga ukukhethwa ngemva kokuqonda izici zokhula, uma ungalwazi lolu khula, siphakamisa ukuthi udinga ukubonisana nochwepheshe noma uxhumane nathi, sizokunikeza iseluleko sochwepheshe futhi sikuthumelele amasampula mahhala zama!