Zonke imidlalo

i-herbicide

I-Herbicide: Ikhemikhali eyenzelwe abalimi ukubulala ukhula. Ukhula yilezo zitshalo ezimila ngokwemvelo ngenxa yomoya, amanzi nanoma yiziphi ezinye izilwane. Lolu khula lungathatha indawo yesinye isitshalo esizuzisa kakhulu (futhi esidingekayo) engadini yakho futhi luphinde lususe yonke imisoco enhlabathini njengokudla, ukukhanya kwelanga njll. Lokhu kungavimbela izitshalo ezinempilo ukuba zikhule, njengoba ukhula lukhula olwalo. Kungalesi sizathu ukusetshenziswa kwemithi yokubulala ukhula ekulimeni kube wusizo olukhulu ekulawuleni izilimo nokuzivulela ithuba lokukhula. Kodwa i-herbicide engasetshenziswa kahle izolimaza imvelo edala izinkinga zempilo kubantu abaningi. Yingakho kubalulekile ukuqonda izinhlobo ezahlukene zemithi yokubulala ukhula nokuthi ingasetshenziswa kanjani ngokuphepha. Nansi inguqulo yesiNgisi

Imithi yokubulala ukhula, njenganoma iyiphi ikhemikhali oyifaka otshanini bakho kunezinhlobo ezahlukene zamakhemikhali atholakala ezinhlobonhlobo ezimbili: ezikhethayo nezingakhethi. Lezi zibulala ukhula eziyingqayizivele ezihlose kuphela ukhula oluthile. Lokhu kuvumela ukuthi zibulale ukhula, kodwa hhayi izitshalo abalimi abazama ukuzitshala. Ama-herbicides angakhethi anzima kakhulu, ngakolunye uhlangothi Abhubhisa zonke izimila, ngakho-ke angasusa yonke indawo yotshani kanye nezingathandi. Uma abalimi befuna ukuvikela izitshalo zabo, bavame ukuphendukela emithini yokubulala ukhula. Abalimi basebenzise imithi yokubulala ukhula engakhethi lapho bedinga ukuthi zonke izitshalo zisuswe ngaphambi kokutshala izitshalo ezintsha.

Izinhlobo ezahlukene zemithi yokubulala ukhula kanye nokusetshenziswa kwayo

Imithi yokubulala ukhula ingasebenza futhi... Eminye imithi yokubulala ukhula isetshenziswa ngokushesha emaqabunga ezitshalo, izisize zisebenze ngokushesha. Ezinye zifakwa ebhuqwini ukuze zikwazi ukungena emhlabathini bese zihlangana nempande yokhula. Eminye imithi yokubulala ukhula ingajovwa ngqo ezitshalweni, ebizwa ngokuthi i-systemic herbicide. Lena indlela yokwenza ukuthi umuthi wokubulala ukhula ukwazi ukumunca futhi ungene ngaphakathi kwezicubu zezitshalo, ozobulala ukhula oluqondiwe ngaphakathi nangaphandle. Abalimi basebenzisa izibulala-khula ngendlela ehlukile kuye ngomuthi othile kanye nezinhlobo zezitshalo okufanele zilawulwe.

Indlela Imithi Yokubulala Ukhula Isiza Ngayo Kubalimi Ukunciphisa ukuncintisana phakathi kwezitshalo nokhula ngokudla, amanzi nokukhanya kwelanga. Uma kuba nokhula oluncane, i-outcrop ingaba ngcono. Lokhu kusho ukuthi izitshalo zingakhula zibe zinde, zibe namandla ngakho-ke kuzoba nezinsiza eziningi ezizodliwa yisintu. Iphuzu lesibili imithi yokubulala ukhula yonga kuphela isikhathi nemali kubalimi, akudingekile ukuba bachithe bekhipha ukhula ngesandla okungathatha iminyaka namahora. Lesi sikhathi esengeziwe sibenza bakwazi ukwenza eminye imisebenzi ebalulekile efana: nokunakekela, ukuchelela, ngisho nokuvuna izitshalo zabo lapho kufika isikhathi esifanele.

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