I-Diquat: ukulawula ukhula ngesikhathi esifushane?

1. Iyini i-Diquat herbicide?

I-Diquatisetshenziswa kabanziokungakhethi thintana ne-herbicideukuze kulawulwe ngokushesha ukhula nezinye izitshalo ezingafuneki. Isetshenziswa kakhulu kokubili kwezolimo kanye ne-horticulture futhi ibulala izingxenye eziluhlaza zezitshalo ngokushesha.

Lokhu kusho ukuthi noma isiphi isitshalo esifuthwa kuso sizosebenza kahle emahoreni ambalwa futhi sizobulala zonke izitshalo zingakapheli izinsuku ezi-1-2!

Diquat 15% SL

2. Isetshenziselwani i-Diquat?

I-Diquat isetshenziswa ngokuyinhloko ukulawula ukhula emasimini, izingadi nezinye izindawo ezingalinyiwe. Ibuye isetshenziselwe ukwelapha izinkinga zezitshalo zasemanzini ezifana ne-algae nokhula lwamanzi emanzini.
Izicelo kwezolimo
Kwezolimo, i-Diquat isetshenziselwa ukususa ukhula ngokushesha emasimini, ikakhulukazi ngesikhathi sokulungiswa komhlaba ngaphambi kokutshala izitshalo.
I-Horticulture
Ku-horticulture, i-Diquat isetshenziselwa ukulawula ukhula ezingadini kanye notshani ukuze kugcinwe ukukhula kwezitshalo okunempilo.
Ukuphathwa kwamanzi
I-Diquat iphinde isetshenziselwe ukususa izitshalo zasemanzini eziyingozi emanzini ukuze kuqinisekiswe izindlela zamanzi ezibushelelezi kanye nokulingana kwemvelo kwemithombo yamanzi.

3. Isebenza kanjani i-Diquat?

I-Diquat ibulala izitshalo ngokuvimbela i-photosynthesis yazo. Kuwumuthi wokuthintana osebenza kakhulu ezingxenyeni eziluhlaza zesitshalo. ngemva kokungena esitshalweni, i-Diquat ibhubhisa ulwelwesi lwamaseli, okwenza amangqamuzana esitshalo afe ngokushesha.
I-Diquat ivimbela i-photosynthesis ngokuvimbela iketango lezokuthutha lama-electron esitshalo, inqubo eholela ekwakhekeni kwama-radicals mahhala ngaphakathi kweseli lesitshalo, agcine ecekela phansi izicubu zesitshalo.
I-Diquat isebenza ngokushesha kakhulu futhi izimpawu zokushwabana ngokuvamile zingabonakala emahoreni ambalwa, ikakhulukazi ekukhanyeni kwelanga.

4. Kuthatha isikhathi esingakanani ukuthi i-Diquat isebenze?

I-Diquat ivamise ukuqala ukusebenza emahoreni ambalwa okufaka isicelo, izitshalo zikhombisa izimpawu zokubuna futhi ekugcineni zife zingakapheli izinsuku ezingu-1-2.
Ukukhanya kwelanga nezinga lokushisa kunomthelela omkhulu kwizinga lesenzo se-Diquat, okunemiphumela esheshayo eyenzeka ekukhanyeni kwelanga okugcwele.
Izitshalo ezihlukene zinezikhathi ezihlukene zokuphendula ku-Diquat, kodwa ngokuvamile izitshalo ze-herbaceous zibonisa imiphumela phakathi namahora ambalwa ngemva kokufafaza.

5. Ingabe i-Diquat neParaquat yinto efanayo?

I-Diquat neParaquat, nakuba yomibili imithi yokubulala ukhula, ingamakhemikhali amabili ahlukene; I-Diquat isetshenziswa kakhulu njengomuthi othintana naye, kuyilapho i-Paraquat iwumuthi wokubulala ukhula wezitshalo zonke, futhi kunomehluko omkhulu ekwakhekeni nasekusetshenzisweni kwawo kwamakhemikhali.
I-Diquat ne-Paraquat ihluke kakhulu ekhemistri kanye nendlela yokuyisebenzisa.I-Diquat imnene ekusebenzeni futhi isetshenziselwa ngokuyinhloko ukulawula ukhula olungapheli, kuyilapho i-Paraquat inomphumela onamandla wokubulala ukhula, kodwa futhi inobuthi obuningi.
I-Paraquat ijwayele ukusetshenziswa ezimeni lapho kudingeka ukuqedwa kokhula ngokuphelele, kanti i-Diquat ifanele uhla olubanzi lwezindawo ezingezona izitshalo kanye nokuphathwa kwamanzi.

6. Ingabe i-Diquat iyingxenye yomndeni wakwaParaquat wamakhemikhali?

I-Diquat ne-Paraquat, nakuba zombili ziyingxenye ye-biphenyl yezinhlanganisela, azikho emndenini ofanayo wamakhemikhali; I-Diquat iyi-pyridine, kuyilapho i-Paraquat ingeyeqembu le-bipyridine lama-compounds, anezakhiwo zamakhemikhali ezahlukene kanye nezindlela zokusebenza.
I-Diquat iyi-ejenti ene-oxidizing enamandla ephazamisa ngokushesha indlela ye-photosynthesis yamangqamuzana ezitshalo, okuholela ekufeni kwezitshalo ngokushesha.
I-Paraquat ibulala izitshalo ngokuvimbela i-photosynthesis yazo futhi inobuthi obunamandla kanye nesikhathi eside sensalela yemvelo.

7. Ngingayithenga kuphi i-Diquat?

I-Diquat ingathengwa kubahlinzeki bezolimo, izitolo zezibulala-zinambuzane kanye nezinkundla ze-inthanethi ezifana ne-POMAIS, ungasithinta ngokushiya umlayezo ku-inthanethi.

8. I-Diquat isebenza isikhathi esingakanani?

Ubude besikhathi sokusebenza kwe-Diquat ngokuvamile bufushane, buqala phakathi namahora ambalwa ngemva kokufaka isicelo, futhi isitshalo sizobuna ngokuphelele phakathi kwezinsuku ezingu-1-2.
Uma i-Diquat isisebenze esitshalweni, imiphumela ayinakubuyela emuva futhi isitshalo sizofa esikhathini esifushane.
I-Diquat iwonakala ngokushesha emhlabathini futhi ngenxa yalokho inezinsalela eziphansi zemvelo, kodwa ukungcoliswa kwemithombo yamanzi kufanele kugwenywe.

9. Ukuqhathanisa ubude besikhathi sokusebenza kwe-Diquat neParaquat

I-Diquat inesikhathi esisheshayo sokusebenza kuneParaquat, enemiphumela evamise ukubonwa emahoreni ambalwa okusebenza, kuyilapho i-Paraquat ithatha isikhathi eside kodwa inemiphumela ehlala isikhathi eside.
I-Paraquat ivamise ukuthatha izinsuku ezimbalwa ukuya evikini ukuze ibulale isitshalo ngokuphelele, ikakhulukazi emazingeni okushisa aphansi.
I-Diquat ifanele izimo lapho kudingeka ukulawula ukhula ngokushesha, futhi iyakwazi ukusebenza kahle emahoreni ambalwa okufakwa futhi ibulale ukhula phakathi kwezinsuku ezingu-1-2.

Isiphetho

I-Diquat iwumuthi wokubulala ukhula osebenza kahle kakhulu futhi iyisinqumo esihle uma ufuna ukubulala ukhula ngokushesha.I-Diquat ingasetshenziswa kwezolimo, ukulima kanye nokuphathwa kwe-non-cropland.

imibuzo ejwayelekile ukubuzwa

1. Yikuphi okuphephile, i-Diquat noma iParaquat?
I-Diquat inobuthi obuncane kuneParaquat, kodwa kufanele isetshenziswe ngokucophelela nangezinyathelo zokuphepha ezifanele.

2. I-Diquat ihlala isikhathi esingakanani emhlabathini?
I-Diquat iwonakala ngokushesha emhlabathini futhi ngokuvamile ayihlali isikhathi eside, kodwa ukungcoliswa okuqondile kwemithombo yamanzi kufanele kugwenywe.

3. Ingabe i-Diquat ingasetshenziswa engadini yasekhaya?
I-Diquat ingasetshenziswa ezingadini zasekhaya, kodwa kufanele kuthathwe ukunakekelwa ukuze kugwenywe ukulimaza ezinye izitshalo kanye nemvelo.

4. Kungani i-Diquat ivinjelwe kwezinye izindawo?
Ngenxa yemiphumela engaba khona ye-Diquat ezintweni eziphila emanzini kanye nempilo yabantu, kunemikhawulo eqinile ekusetshenzisweni kwayo kwezinye izindawo.

5. Yini okufanele ngiyiqaphele lapho ngisebenzisa i-Diquat?
Uma usebenzisa i-Diquat, gqoka okokuvikela okufanele, gwema ukuthintana ngqo nesikhumba noma ukuhogela, futhi unake ngokukhethekile ukuvikelwa kwemvelo ngesikhathi sokuphatha.