Xhumana ne-systemic herbicides

Iyini imithi yokubulala ukhula?

Imithi yokubulala ukhulangamakhemikhali asetshenziselwa ukucekela phansi noma ukuvimbela ukukhula kokhula. Imithi yokubulala ukhula isetshenziswa kakhulu kwezolimo kanye nokulima kwezitshalo ukusiza abalimi nabalimi ukugcina amasimu nezingadi zabo kucocekile futhi kusebenza kahle. Imithi yokubulala ukhula ingahlukaniswa ngezinhlobo eziningana, ikakhulukazi ezihlanganisathintana nama-herbicidesfuthiama-herbicides esistimu.

Kungani kubalulekile ukuqonda imithi yokubulala ukhula?

Ukuqonda ukuthi izinhlobo ezahlukene zemithi yokubulala ukhula isebenza kanjani, ishesha kangakanani ukusebenza, lapho isetshenziswa khona, nokuthi isebenza kahle kangakanani kubalulekile ekukhetheni umuthi ofanele. Lokhu ngeke kusize nje ukuthuthukisa ukusebenza kahle kokulawula ukhula, kodwa futhi kuzonciphisa imithelela engemihle endaweni ezungezile futhi kuvikele impilo yezitshalo zakho.

Xhumana ne-herbicide

Imodi yesenzo
Thinta ama-herbicides abulala izingxenye zesitshalo ngokuhlangana nawo ngqo. Le mithi yokubulala ukhula ayinyakazi noma idlulele ngaphakathi kwesitshalo ngakho-ke isebenza kuphela ezingxenyeni ezihlanganayo.

Isivinini
Imithi yokubulala ukhula ivamise ukusebenza ngokushesha. Umonakalo obonakalayo esitshalweni ngokuvamile ubangelwa phakathi namahora noma izinsuku.

Isicelo
Le mithi yokubulala ukhula ijwayele ukusetshenziselwa ukulawulaukhula lonyaka. Asebenzanga kangakoukhula olungaphelingoba azifinyeleli esimisweni sezimpande zesitshalo.

Izibonelo
I-Paraquat 20% SLiwumuthi obulala ukhula, obulala kakhulu ulwelwesi lwe-chloroplast lokhula ngokuthinta izingxenye eziluhlaza zokhula. Kungathinta ukwakheka kwe-chlorophyll okhula futhi kuthinte i-photosynthesis yokhula, ngaleyo ndlela kuqede ngokushesha ukukhula kokhula. Ingabhubhisa kokubili izitshalo ze-monocotyledonous kanye ne-dicotyledonous ngesikhathi esisodwa. Ngokuvamile, ukhula lungashintsha umbala phakathi kwamahora angu-2 kuya kwangu-3 ngemva kokufakwa.

I-Diquatngokuvamile isetshenziswa njengendlela conductive contact ebulala bioherbicide. Ingamuncwa ngokushesha izicubu zezitshalo eziluhlaza bese ilahlekelwa umsebenzi ngokushesha ngemva kokuthintana nomhlabathi. Isetshenziselwa ukuhlakula emasimini, ensimini yezithelo, ezindaweni ezingalimeki, nangaphambi kokuvuna. Ingasetshenziswa futhi njengokubuna Iziqu namaqabunga amazambane nobhatata. Ezindaweni lapho ukhula lwe-gramineous lunzima, kungcono ukusebenzisa i-paraquat ndawonye.

Izinzuzo kanye nobubi bemithi yokubulala ukhula

Izinzuzo
Isebenza ngokushesha ezindaweni ezidinga ukulawula okusheshayo.
Isebenza kahle kakhulu okhulani lonyaka.
Ukubi
Ayibulali izimpande, ngakho-ke ayisebenzi okhulani olungapheli.
Idinga ukumboza kahle amaqabunga esitshalo ukuze iphumelele kakhulu.

I-Systemic Herbicide

Imodi yesenzo
I-systemic herbicide imuncwa isitshalo futhi idluliselwe kuzo zonke izicubu zaso futhi ikwazi ukufinyelela ezimpandeni nakwezinye izingxenye zesitshalo, ngaleyo ndlela ibulale sonke isitshalo.

Isivinini
Izinga lokuqala kokusebenza kwe-systemic yokubulala ukhula ngokuvamile lihamba kancane ngoba kuthatha isikhathi ukumuncwa isitshalo futhi inyakaze isitshalo sonke.

Isicelo
Le michiza yokubulala ukhula iyasebenza ekulweni nokhula lwaminyaka yonke nolungapheli ngenxa yokukwazi ukubulala izimpande zesitshalo.

Izibonelo
I-Glyphosateiwumuthi ongakhethi. Kubalulekile ukugwema ukungcolisa izitshalo lapho ugcoba ukuze ugweme i-phytotoxicity. Isetshenziswa emaqabunga ezitshalo ukubulala kokubili izitshalo zamaqabunga abanzi notshani. Kunomphumela omuhle ngezinsuku ezinelanga namazinga okushisa aphezulu. Ifomu le-sodium likasawoti we-glyphosate lisetshenziselwa ukulawula ukukhula kwezitshalo kanye nokuvuthwa kwezitshalo ezithile.

2,4-D, eyaziwa ngokuthi i-2,4-dichlorophenoxyacetic acid, isibulala-zinambuzane esisetshenziswa kabanzi esikhethiwe. Isetshenziswa kakhulu ukulawula ukhula lwamaqabunga abanzi ngaphandle kokulimaza utshani.

Izinzuzo kanye nobubi be-systemic herbicides

Izinzuzo

Iyakwazi ukubulala izimpande zezitshalo, izenze ziphumelele okhulani olungapheli.
Kudingeka kuphela ukumboza ingxenye yesitshalo njengoba ihamba phakathi kwesitshalo.

Ukubi

Ukuqala kancane kwesenzo, azifanele izimo lapho kudingeka khona imiphumela esheshayo.
Kungaba nomthelela omkhulu emvelweni nasezitshalweni ezingahlosiwe.

Umehluko omkhulu phakathi kwama-herbicides othintana nawo kanye nama-systemic herbicides

Ukuhlanganisa
Imithi yokubulala ukhula idinga ukumbozwa ngokuphelele kwamahlamvu esitshalo, futhi noma yiziphi izingxenye zesitshalo ezingathintani nomuthi wokubulala ukhula zizosinda. Ngokuphambene, ama-systemic herbicides adinga ukumbozwa kancane kuphela ngoba ahamba ngaphakathi kwesitshalo.

Ukusebenza kahle ezitshalweni ezingapheli
Ama-herbicides athintana nawo awasebenzi kahle okhulani olungapheli olunezimpande ezibanzi, kanti ama-systemic herbicides angabulala ngempumelelo ukhula olungapheli ngokufinyelela ezimpandeni.

Sebenzisa Amacala
Imithi yokubulala ukhula ivame ukusetshenziselwa ukuwisa ukhula ngokushesha, ikakhulukazi ezindaweni lapho ukuthintana kwenhlabathi kungase kulimaze izitshalo ezifiselekayo, kuyilapho izibulala-khula ezihleliwe zisetshenziselwa ukulawula okuphelele, isikhathi eside kokhula olubeleselayo.

Ukufingqa

Izibulala-zinambuzane ezithintana nezihleliwe ngayinye inendlela yayo ehlukile yokwenza, isivinini, kanye nohlu lokusebenzisa. Imuphi umuthi ongawukhetha uncike ohlotsheni lokhula, izinga lokulawula elidingekayo, nokucatshangelwa kwemvelo. Ukuqonda umehluko kanye nezimo zokusetshenziswa kwale michiza yokubulala ukhula emibili kuzosiza ukwenza ukulawulwa kokhula kuphumelele kakhulu.