Kuphephe kakhulu ukusebenzisa imithi yokubulala ukhula ezinsukwini ezingu-40 ngemva kokuhlwanyela ukolweni wasebusika ngemva kokuthela amanzi enhloko (amanzi okuqala).Ngalesi sikhathi, ukolweni usesigabeni senhliziyo engu-4-leaf noma 4-leaf futhi uyakwazi ukubekezelela imithi yokubulala ukhula.Ukuhluma kufanele kwenziwe ngemuva kwamaqabunga ama-4.i-ejenti iyona ephephe kunazo zonke.

Ngaphezu kwalokho, esigabeni se-4-leaf sikakolweni, ukhula oluningi luye lwavela, futhi ubudala botshani buncane kakhulu.Ukolweni awunawo amathila namaqabunga ambalwa, ngakho kulula ukubulala ukhula.Ama-herbicides asebenza kakhulu ngalesi sikhathi.Ngakho-ke yiziphi izinyathelo zokuphepha zokufafaza ama-herbicides kakolweni?
1. Lawula izinga lokushisa ngokuqinile.
Izibulala-zinambuzane ngokuvamile zimakwa njengezilungele ukusetshenziswa ku-2°C noma ku-5°C.Ngakho-ke, ingabe u-2°C no-5°C oshiwo lapha ubhekisela ezingeni lokushisa ngesikhathi sokusetshenziswa noma izinga lokushisa eliphansi kakhulu?
Impendulo ingeyakamuva.Izinga lokushisa okukhulunywe ngalo lapha libhekise ezingeni lokushisa elincane, okusho ukuthi izinga lokushisa eliphansi lingasetshenziswa ngaphezu kuka-2℃, futhi izinga lokushisa akufanele libe ngaphansi kwaleli ezinsukwini ezimbili ngaphambi nangemuva kokugcotshwa kwe-herbicide.
2. Akuvunyelwe ukusebenzisa umuthi ngezinsuku ezinomoya.
Ukufaka izibulala-zinambuzane ngezinsuku ezinomoya kungabangela kalula ukuthi imithi yokubulala ukhula ikhukhuleke, okungenzeka ingasebenzi.Ingase futhi isabalale ezitshalweni ezibamba ukushisa noma kwezinye izitshalo, ibangele ukulimala kwe-herbicide.Ngakho-ke, qiniseka ukuthi ugwema ukusebenzisa izibulala-zinambuzane ngezinsuku ezinomoya.
3. Akuvunyelwe ukusebenzisa umuthi esimweni sezulu esibi.
Akuvunyelwe ukusebenzisa izibulala-khula esimeni sezulu esibi njengesithwathwa, imvula, iqhwa, isichotho, amakhaza, njll. Kufanele futhi sinake ukuze sizame ukuba nesimo sezulu esibi kangaka singabi naso ngaphambi nangemva kokufaka imichiza yokubulala ukhula.Abalimi kumele banake isibikezelo sezulu.

4. Ungasebenzisi imithi yokubulala ukhula lapho izithombo zikakolweni zibuthakathaka nezimpande zisobala.
Ngokuvamile, utshani bubuyiselwa ensimini emasimini kakolweni ebusika, futhi iziqephu zisuke zixega.Uma uhlangabezana neminyaka enesimo sezulu esingajwayelekile, njengeminyaka enobusika obufudumele nesomiso, kufanele uqaphele ukuthi izimpande zikakolweni zingase zingakwazi ukungena zijule ngenxa yokuthi inhlabathi ixega kakhulu, noma ingxenye yezimpande ingase ibonakale.Ukolweni omncane ungabangela kalula isithwathwa kanye nokuntuleka kwamanzi.Izithombo zikakolweni ezinjalo zizwela kakhulu futhi zibuthakathaka.Uma imithi yokubulala ukhula isetshenziswa ngalesi sikhathi, izodala umonakalo othile kukolo.
5. Ungasebenzisi ama-herbicides uma ukolweni ugula.
Eminyakeni yamuva nje, izifo ezithwalwa yimbewu noma ezithwalwa umhlabathi njenge-wheat sheath blight, ukubola kwezimpande, nokubola ngokuphelele kuye kwenzeka kaningi.Ngaphambi kokusebenzisa imithi yokubulala ukhula, abalimi kufanele baqale bahlole ukuthi izithombo zabo zikakolweni ziyagula yini.Uma ukolweni ugula, kungcono ukungasebenzisi ama-herbicides.umenzeli.Kunconywa ukuthi abalimi banake ukusebenzisa izibulala-zinambuzane ezikhethekile ukugqoka ukolweni ngaphambi kokuhlwanyela ukuvimbela ukwenzeka kwezifo.
6. Uma usebenzisa ama-herbicides, qiniseka ukuthi uwaxube kabili.
Abanye abangani abangabalimi bafuna ukonga izinkinga futhi bathele ngokuqondile umuthi wokubulala ukhula esifafazweni, futhi bavele bathole igatsha lokuwuxova.Le ndlela yokuxuba imithi ayihambisani neze nesayensi.Ngenxa yokuthi imikhiqizo eminingi yokubulala ukhula iza nezinto ezisizayo, izilekeleli zidlala indima ekuthuthukisweni kokungena futhi ngokuvamile ziba ne-viscous.Uma zithelwa ngqo ku-sprayer, zingacwila phansi emgqonyeni.Uma ukugoqa okwanele kungenziwanga, izinsiza zingadala imiphumela eyisizayo.I-herbicide epakishwe ku-ejenti ayikwazi ukuchithwa, okungaholela emiphumeleni emibili:

Enye iwukuthi ngemva kokuba yonke imithi yokubulala ukhula isifuthwe, ingxenye yomuthi yokubulala ukhula ayikancibiliki phansi emgqonyeni, okuholela ekumosheni;
Omunye umphumela ukuthi umuthi wokubola ukhula ensimini kakolweni ulula kakhulu ekuqaleni, kodwa umuthi ofakwe ekugcineni unzima kakhulu.Ngakho-ke, lapho usebenzisa ama-herbicides, qiniseka ukuthi unaka ukuhlanjululwa kwesibili.
Indlela efanele yokulungisa iyindlela yesibili yokuhlanjululwa: qala ngokufaka amanzi amancane ukuze ulungise isixazululo sikamama, bese uwuthela emshinini wokufafaza oqukethe inani elithile lamanzi, bese ufaka inani elidingekayo lamanzi, ugovuze ngenkathi wengeza, futhi uhlanganise. kahle ukuze unciphise ukugxila okudingekayo.Ungathululi i-ejenti kuqala bese ufaka amanzi.Lokhu kuzodala ukuthi i-ejenti ifake kalula epayipini lokumunca amanzi lesifafazi.Ukugxila kwesisombululo esifuthwe kuqala kuzoba phezulu futhi kulula ukubangela i-phytotoxicity.Ukugxiliswa kwesisombululo esifuthwe kamuva kuzoba phansi futhi umphumela wokukhula uzoba mubi.Ungathululi i-ejenti ku-sprayer egcwele inani elikhulu lamanzi ngesikhathi esisodwa.Kulokhu, impushana emanzi ivame ukuntanta phezu kwamanzi noma yenza izingcezu ezincane futhi isakazwe ngokungalingani.Akukhona nje ukuthi umphumela awuqinisekisiwe, kodwa izimbobo ze-nozzle zivinjelwe kalula ngesikhathi sokufafaza.Ngaphezu kwalokho, ikhambi lomuthi kufanele lilungiswe ngamanzi ahlanzekile.
7. Imithi yokubulala ukhula kufanele isetshenziswe ngokuqinile ngokuhambisana nemithethonqubo ukuze kugwenywe ukusetshenziswa ngokweqile.
Lapho abanye abalimi begcoba imithi yokubulala ukhula, bafafaza izikhathi eziningana ezindaweni ezinotshani obuqinile, noma bafafaze imithi yokubulala ukhula esisele endaweni yonke yokugcina ngenxa yokwesaba ukuyimosha.Le ndlela ingaholela kalula ekulimaleni kwe-herbicide.Lokhu kungenxa yokuthi imithi yokubulala ukhula iphephile ukolweni lapho kugxilwa khona okujwayelekile, kodwa uma isetshenziswe ngokweqile, ukolweni ngokwawo awukwazi ukubola futhi uzodala umonakalo kukolweni.

8. Buka ngendlela efanele isenzakalo sokuba phuzi kanye nokuququda kwezithombo okubangelwa imithi yokubulala ukhula.
Ngemva kokusetshenziswa kweminye imithi yokubulala ukhula, amathiphu amaqabunga kakolweni azophenduka aphuzi isikhathi esifushane.Lesi yisenzakalo esivamile sokuqothuka kwezithombo.Ngokuvamile, ingalulama yodwa lapho ukolweni uphenduka ube luhlaza.Lesi simo angeke sibangele ukuncipha kokukhiqizwa, kodwa singakhuthaza ukwanda kokukhiqizwa kukakolweni.Ingavimbela ukolweni ekuphazamiseni ukukhula kwawo ngenxa yokukhula kwemifino ngokweqile, ngakho abalimi akudingeki bakhathazeke lapho behlangabezana nalesi simo.
9. Lawula izinga lokushisa ngokuqinile.
Okokugcina, ngithanda ukukhumbuza wonke umuntu ukuthi lapho sisusa ukhula lukakolweni, kufanele sinake izinga lokushisa sezulu kanye nomswakama.Lapho usebenzisa izibulala-zinambuzane, izinga lokushisa elivamile kufanele libe ngaphezu kwama-degree angu-6.Uma inhlabathi yomile, kufanele sinake ukwanda kokusetshenziswa kwamanzi.Uma kunamanzi amile, kuzoba nomthelela emithini yokubulala ukhula kakolweni.Ukusebenza komuthi kuyasetshenziswa.