Uhlelo Lokusebenza lwe-Herbicide Olungakafiki Ngaphambili
Isikhathi sokuqala kwezicelo ze-herbicide sincike ekuhloleni uhlobo olusetshenziswayo. Emapulazini lapho kusetshenziselwa khona ukulimala okuvamile, ukulimala kumele kusetshenziswe ngokushesha emva kokuba umhlaba utshalwa ukuze ukhula lungatholi ithuba lokuhluma, uGavin Matthews weluleka ku-athikili yakhe U-Pula we-Grain SA uhlala ebaluleke kakhulu. Umagazini we-Imvula.Uma usebenzisa i-no-minimal-tillage, 'ukushisa phansi' i-herbicide ingasetshenziswa ukubulala wonke ukhula oluvele lulandelwe ukhula olusanda kuvela ukuze luvimbele noma yikuphi ukhula ekukhuleni. Kungakhathaliseki ukuthi kusetshenziselwa ukulimala okuvamile noma ukulimala okuncane, ukubulala imithi kufanele kusetshenziswe ngesikhathi semimoya emanzi ukuvumela amakhemikhali ukuba adonsele emhlabathini ukuze abhubhise imbewu yokhula.
Isicelo se-Herbicide Esiphumela Ngemuva
Imithi yokubulala i-post-emergence ixhumana nokuxuba, okusho ukuthi kufanele kuthathwe amaqabunga enokhula ukubhubhisa isitshalo. Esihlokweni sakhe, Hlalani isitha esiphezulu, esivela ku- Grain SA’s Pula Imvula magazine, uGavin Matthews unamacebiso alandelayo okusetshenziswa kahle:Okokuqala, i-herbicide kufanele isetshenziswe ngosuku olungenamoya, ukuvimbela ukuqhuma okuphambanisa okungabangela ukuxhumana okubi phakathi kwe-herbicide kanye nokhula.
Ngokungafani namakhemikhali angaphambi kokuphuma okumele asetshenziswe ngesikhathi sokumanyozela, amakhemikhali okuphuma ngemva kokuphuma adingeka ukuthi asetshenziswe ezinsukwini ezishisayo, lapho ukhula lukhula ngokukhuthele, ukuze uthole amakhemikhali omuhle. Uma ukhula selukhulile, ukhula luzoba nomthelela omncane kakhulu.
Okwesithathu, amakhemikhali kufanele asetshenziswe emanzini afaneleko namanzi we-droplet. Ngokuvamile, cishe amalitha angama-150 amanzi angasetshenziswa ehektheleni ngalinye ngemfucuza emihle ukuze athole uketshezi kwamakhemikhali okungcono kwesitshalo. Nokho, ukulinganisa kwamanzi nosayizi we-droplet kuyobe kuncike kumkhiqizo, ngakho-ke cela umhlinzeki wakho wamakhemikhali iseluleko sohlelo lokusebenza.
Okwesine, i-herbicide kufanele isetshenziswe ngesivinini esivamile ukuze igweme ukufakwa kwesicelo noma ukulahleka ezindaweni lapho isivinini sasihamba kancane noma ngaphansi kwesicelo lapho ugandaganda eshayela ngokushesha. I-sprayer kufanele ilandelwe ngendlela efanele ngokusheshisa kwesicelo, okuzoxhomekeka ekutheni indawo yepulazi isetshenziswe kanjani. Ikhilomitha eziyishumi ngehora isivinini esihle ukusebenzisana futhi kusiza ekunciphiseni izibalo zokulinganiswa.
Okokugcina, izithasiselo, njengezitika, zingasetshenziselwa ukuthuthukisa ukuphumelela kohlobo lwe-herbicide. Isitifiketi singavumela ukuthi ukhula lubambe kangcono emaqabeni kokhula futhi linciphise umthelela omubi wemvula ewela emva kokupuniza. Futhi, abahlinzeki bamakhemikhali kufanele baxoxisane ngokuthi ngabe isithasiselo siyadingeka nokuthi yiziphi okuzozisebenzisa lapho ukhula lwe-herbicide.
Okokugcina, abalimi kufanele baqinisekise ukuthi basebenzisa i-herbicide efanele, ngamanye amazwi, okuzobhubhisa ukhula oluhlosiwe ngaphandle kokuthinta kabi ukukhiqizwa kwezitshalo.
Translated by Nsika Khoza