Ayini ama-systemic herbicides?

Ama-herbicides ahlelekilezingamakhemikhali aklanyelwe ukuqeda ukhula ngokumuncwa ohlelweni lwemithambo yezitshalo futhi adlulisele kuyo yonke into ephilayo. Lokhu kuvumela ukulawula ukhula okuphelele, okuqondiswe kuzo zombili izingxenye zezitshalo ezingaphezulu nangaphansi komhlaba.

Kwezolimo zesimanje, ukwakheka kwezwe, namahlathi, ukulawula ukhula ngempumelelo kubalulekile ukuze kugcinwe ukuvunwa kwezitshalo, ukubukeka kwemvelo okuhle, namahlathi anempilo. Imithi yokubulala ukhula idlala indima ebalulekile kule mikhakha ngokuhlinzeka ngezixazululo zokulawula ukhula ezisebenza kahle nezihlala isikhathi eside.

Uhlolojikelele lwe-Glyphosate Njengesibonelo Esivelele

I-Glyphosatengokungangabazeki iwumuthi wokubulala ukhula owaziwa kakhulu. Isetshenziswa kakhulu ngenxa yokuphumelela kwayo ekulawuleni ukhula oluningi kanye nobuthi bayo obuncane ezinhlobonhlobo ezingahlosiwe lapho isetshenziswa ngendlela efanele.

Imininingwane Yezobuchwepheshe

Ukwakheka Kwamakhemikhali

Ama-systemic herbicides angahluka kakhulu ekwakhekeni kwawo kwamakhemikhali, kodwa ngokuvamile ahlanganisa izithako ezisebenzayo ezikwazi ukumuncwa futhi zidluliselwe ezitshalweni. Izithako ezisebenzayo ezijwayelekile zifaka i-glyphosate, i-2,4-D, ne-imazapyr.

Indlela Yokwenza

Ama-systemic herbicides asebenza ngokuphazamisa izinqubo ezibalulekile zebhayoloji ngaphakathi kwesitshalo. Isibonelo, i-glyphosate ivimbela i-enzyme ehilelekile ekuhlanganiseni kwama-amino acid abalulekile, okuholela ekufeni kwezitshalo. Le mithi yokubulala ukhula ngokuvamile isetshenziswa emaqabunga noma emhlabathini futhi imuncwe uhlelo lwemithambo yezitshalo.

Izinhlobo ze-Systemic Herbicides

Ama-systemic herbicides angahlukaniswa abe yizigaba ezimbalwa ngokuya ngemvelo yawo yamakhemikhali nendlela yokwenza:

• Ama-Amino Acid Inhibitors (isb, i-glyphosate)

• Izilawuli Zokukhula (isb, 2,4-D)
• I-Lipid Synthesis Inhibitors (isb.i-quizalofop)

• Ama-Photosynthesis Inhibitors (isb.i-atrazine)

Izinhlelo zokusebenza

Ukusetshenziswa Kwezolimo

Kwezolimo, ama-systemic herbicides asetshenziswa ukulawula ukhula oluhlukahlukene oluqhudelana nezitshalo ukuze uthole imisoco, ukukhanya nendawo. Zisetshenziswa kuzo zombili izigaba zangaphambi kokuhluma (ngaphambi kokuba imbewu yokhula iqhume) kanye nezigaba zangemuva kokuhluma (ngemuva kokuhluma kokhula).

Ukwakheka kwezwe kanye Nengadi

Abakhi bendawo kanye nabalimi basebenzisa imithi yokubulala ukhula ehlelekile ukuze bagcine izindawo ezibukeka kahle ngokulawula izinhlobo ezihlaselayo nokuvikela ukumila kokhula. Le mithi yokubulala ukhula iwusizo ikakhulukazi ekunakekeleni utshani, imibhede yezimbali, nezingadi zokuhlobisa.

Ukuphathwa Kwamahlathi

Ezamahlathi, ama-systemic herbicides asiza ukuphatha izinhlobo zezitshalo ezihlaselayo ezingasongela i-ecosystem yomdabu futhi zithiye ukukhula kwezihlahla. Zibuye zisetshenziswe ezinhlelweni zokubuyisela indawo yokuhlala ukuze kuqedwe uhlaza olungadingeki.

Izinzuzo

Ukulawula Ukhula Okuphumelelayo

Imithi yokubulala ukhula ihlinzeka ngokulawula ukhula okuphelele ngokuqondisa isitshalo sonke, kuhlanganise nezimpande. Lokhu kuqinisekisa ukuthi ukhula luqedwa ngokuphelele, kunciphisa amathuba okukhula kabusha.

Umthelela Wesikhathi Eside Ezinhlotsheni Ezihlaselayo

Ngokukhomba ngempumelelo kanye nokuqeda izinhlobo ezihlaselayo, imithi yokubulala ukhula ehlelekile isiza ukulondoloza imiphakathi yezitshalo zomdabu futhi igcine ukuhlukahluka kwemvelo.

Isidingo Esincishisiwe Sezicelo Ezivamile

Ngenxa yendlela yokusebenza kwayo yonke, imithi yokubulala ukhula ehleliwe ivamise ukudinga ukusetshenziswa okumbalwa uma kuqhathaniswa nemithi yokubulala ukhula, okuyenza ibe yisixazululo esingabizi kakhulu sokulawula ukhula.

Ukuhlaziya Ngokuqhathanisa

I-Systemic vs. Xhumana nama-Herbicides

Ama-herbicides ayisistimu ahlukile kuma-herbicidesngokuthi zihamba phakathi kwesimiso semithambo yezitshalo, zinikeze ukulawula okuphelele. Thinta ama-herbicides, ngakolunye uhlangothi, athinta kuphela izingxenye zesitshalo ezithintayo, okuzenza zingasebenzi kahle ngokumelene nokhula olunezimpande ezijulile.

Ukuqhathanisa Nezinye Izindlela Zokulawula Ukhula

Izibulala-zinambuzane ezihleliwe zivame ukuqhathaniswa nezindlela zokulawula ukhula ngomshini (isb., ukuhlakula, ukugunda) kanye nokulawula izinto eziphilayo (isb., ukusebenzisa izilwane ezidla ezinye zemvelo). Indlela ngayinye inezinzuzo zayo kanye nemikhawulo, futhi amasu ahlanganisiwe okulawula ukhula ngokuvamile ahlanganisa izindlela eziningi ukuze uthole imiphumela emihle.

Imihlahlandlela yomsebenzisi noma Okokufundisa

Indlela Yokukhetha I-Herbicide Elungile

Ukukhetha umuthi ofanele wokubulala ukhula kuhlanganisa ukucabangela izici ezifana nohlobo lokhula olukhona, izinga elifunekayo lokulawula, kanye nezimo zemvelo. Uma ungaqiniseki ukuthi ungakhetha kanjani, sicela usitshele ukuthi yiluphi ukhula okudingeka ulususe, futhi sizokunikeza izincomo futhi sikuthumele amasampula ukuze uzame!

Amasu okusebenza

Izindlela zokusetshenziswa ezifanele zibalulekile ukuze kwandiswe ukusebenza kahle kwe-systemic herbicide. Lokhu kuhlanganisa ukulinganisa izinto zokusebenza, ukusetshenziswa ezingeni elifanele lokukhula kokhula, kanye nokulandela iziqondiso zokuphepha ukuze kuncishiswe umthelela endaweni.

Izinyathelo Zokuphepha

Izinyathelo zokuphepha lapho usebenzisa ama-systemic herbicides zihlanganisa ukugqoka izinto zokuzivikela, ukugwema ukusetshenziswa eduze kwemithombo yamanzi, nokulandela yonke imiyalelo yelebula ukuvimbela ukuchayeka ngengozi nokungcoliswa kwemvelo.

Ama-systemic herbicides angakwazi ukulawula izimila ezingadingeki ngempumelelo nangesikhathi eside. Naphezu kwezinselelo ezifana nokukhathazeka kwemvelo kanye nokuthuthukiswa kokumelana, ukuthuthuka kwezobuchwepheshe nezinqubo ezizinzile zithembisa ikusasa eliqhakazile lokusebenzisa kwazo.