UMary Allen
Ummbila uyinhlamvu. E-Austria baphinde bathi Kukuruz. Izinhlamvu eziwugqinsi zivame ukuba phuzi, kodwa zingaba neminye imibala kuye ngezinhlobonhlobo. Zitholakala phezu kwezikhwebu ezinkulu, ezinde ezimila emaphethelweni aminyene anamaqabunga.
Ummbila uvela eMelika Ephakathi. Isitshalo esisuka lapho sibizwa nge-teosinte. Cishe ngonyaka ka-1550, abantu baseYurophu bathatha ezinye zalezi zitshalo baya nazo eYurophu futhi bazihlakulela lapho.
Emakhulwini eminyaka adlule, ummbila uye wakhuliswa njengoba siwazi namuhla: mkhulu kakhulu futhi unezinhlamvu eziningi kune-teosinte. Nokho, isikhathi eside ummbila wawungalinywa eYurophu, futhi uma kunjalo, wawuwukudla kwezilwane ngenxa yezinhlanga ezinde. Ummbila omningi utshalwe kusukela maphakathi nekhulu lama-20. Namuhla ingeyesithathu okusanhlamvu okuvame kakhulu emhlabeni.
Usetshenziselwani ummbila?
Ngisho nanamuhla, ummbila omningi utshalwa ukuze uphakele izilwane. Yebo, ungawudla futhi. Kulokhu kuyacutshungulwa. Yilapho ama-cornflakes avela khona, isibonelo. “Ummbila” igama laseMelika elisho ummbila.
Nokho, kusukela cishe ngonyaka wezi-2000, ummbila ubudingeka kwenye into: ummbila ufakwa esitshalweni se-biogas kanye nomquba wezingulube noma izinkomo. Ezinye izimoto zingasebenzisa i-biogas. Noma ungayishisa ukuze ukhiqize ugesi.