I-Pinoxaden: Umholi Wokubulala Ukhula Ensimini Yezinhlayiya

Igama elijwayelekile lesiNgisi yiPinoxaden; igama lekhemikhali lingu-8-(2,6-diethyl-4-methylphenyl)-1,2,4,5-tetrahydro-7-oxo-7H- Pyrazolo[1,2-d][1,4,5]oxadiazepine-9-yl 2,2-dimethylpropionate; Ifomula yamamolekyuli: C23H32N2O4; Isisindo samamolekyuli esihlobene: 400.5; Inombolo yokungena ye-CAS: [243973-20-8]; ifomula yesakhiwo iboniswe kuMfanekiso. Iwumuthi wokubulala ukhula ngemuva kokuvela nokukhethwa owakhiwe yiSyngenta. Waqalwa ngo-2006 kanti ukuthengiswa kwawo ngo-2007 kwadlula amaRandi ayizigidi eziyi-100.

Indlela yokwenza

I-Pinoxaden ingeyesigaba esisha se-phenylpyrazoline semithi yokubulala ukhula futhi iyisithiyo se-acetyl-CoA carboxylase (ACC). Indlela esebenza ngayo ngokuyinhloko ukuvimba ukwakheka kwe-fatty acid, okuholela ekuvinjweni kokukhula nokuhlukana kwamaseli, kanye nokufa kwezitshalo zokhula, kanye nokuqhuba kahle kwesistimu. Umkhiqizo usetshenziswa kakhulu njengemithi yokubulala ukhula ngemva kokuvela emasimini okusanhlamvu ukulawula ukhula lotshani.

Isicelo

I-Pinoxaden iyi-herbicide ekhethayo, ehambisa ukhula lotshani ngendlela ehlelekile, esebenza kahle kakhulu, ine-spectrum ebanzi, futhi imuncwa ngokushesha ngeziqu namaqabunga. Ukulawulwa kokhula lwaminyaka yonke oluyi-gramineous emasimini kakolweni nebhali ngemva kokuvela, njenge-sagebrush, i-Japanese sagebrush, i-wild oats, i-ryegrass, i-thorngrass, i-foxtail, utshani obunzima, i-serratia kanye ne-thorngrass, njll. Iphinde ibe nomphumela omuhle wokulawula otshanini obuqinile njenge-ryegrass. Umthamo wesithako esisebenzayo u-30-60 g/hm2. I-Pinoxaden ifaneleka kakhulu okusanhlamvu kwasentwasahlobo; ukuthuthukisa ukuphepha komkhiqizo, i-fenoxafen ephephile iyangezwa.

1. Ukuqala ngokushesha. Emasontweni angu-1 kuya kwangu-3 ngemva kokusebenzisa umuthi, kuvela izimpawu zobuthi obuvela emvelweni, bese i-meristem iyeka ukukhula ngokushesha futhi iqhume ngokushesha;

2. Ukuphepha okuphezulu kwemvelo. Kuphephile esivunweni samanje sikakolweni, ibhali kanye nokuphepha kwezinto eziphilayo okungahlosiwe, kuphephile ezitshalweni ezilandelayo kanye nemvelo;

3. Indlela yokusebenza ihlukile futhi ingozi yokumelana iphansi. I-Pinoxaden inesakhiwo samakhemikhali esisha sha esinezindawo ezahlukene zesenzo, okwandisa isikhala sayo sokuthuthukiswa emkhakheni wokuphathwa kokumelana.