Lekani kupopera kutsitsi ndi zinyalala za mankhwala. Kuthamanga kwa master knapsack sprayer, kusankha nozzle, ndi kukula kwa dontho kuti muphimbe kwambiri komanso molondola.
Wopopera mbewu mankhwalawa amatha kukhala ndi batire lathunthu komanso pampu yogwira ntchito, komabe amapereka zotsatira zoyipa. Kuyenda kofooka, nkhungu yosagwirizana, ndi ma nozzles otsekedwa nthawi zambiri zimachokera ku kuipitsidwa mkati mwamadzimadzi opopera, osati mavuto amagetsi. Wopopera mbewu mankhwalawa amadalira magawo angapo a kusefera kuti madzi aziyenda bwino. Njira yosefera nthawi zambiri imaphatikizapo kusefa kwa thanki, fyuluta ya pampu, makina a payipi, chophimba cha nozzle, ndi kutsegula kwa nozzle. Chigawo chilichonse chimagwira ntchito zosiyanasiyana ndipo chimateteza gawo lina la kupopera mbewu mankhwalawa. Mu bukhuli, muphunzira momwe zosefera matanki, zosefera pampu, ndi zowonera za nozzle zimagwirira ntchito limodzi. Mumvetsetsanso momwe mungasankhire, kuyang'anira, ndikusunga zida zosefera kuti zitsimikizike kuti zida zamagetsi zimagwira ntchito.
Kusintha kumodzi kosasamala kungakhudze ntchito yotsatira yopopera mankhwala. Ngozi ikhoza kukhalabe ngakhale thanki ikuwoneka yoyera. Mafamu ambiri amagwiritsa ntchito chopopera mbewu chimodzi popangira mankhwala ophera udzu, mankhwala ophera tizilombo, feteleza, ndi mankhwala ophera tizilombo. Zida zosiyana sizothandiza nthawi zonse. Komabe, zotsalira za mankhwala zimatha kukhala mkati mwa mapampu, mapaipi, zosefera, mavavu, ndi ma nozzles tanki ikatha. Zotsalira zobisikazi zitha kuvulaza mbewu zomwe zimakhudzidwa kwambiri, zingakhudze chithandizo chamtsogolo, kapena kupanga madipoziti omwe amalepheretsa kuyenda kwamadzimadzi. Ma sprayer odzipatulira amatha kuchepetsa kuopsa kwa zinthu zomwe zili pachiwopsezo chachikulu. Zhina akugogomezera kukonzekera kokhazikika kwa Expo