Kaukau
From Wikipedia
Kaukau i stap olsem namba wan kai kai bilong planti manmeri i stap long kain kain hap. Kau kau i no save rausim naitrogen i go aut long graun. Dispela i bikpela samting olsem wanpela i inap plantim planti kau kau na em no bai kilim graun. George Washington Carver, wanpela man bilong Amerika bin mekim planti kain invension yu ken mekim long kau kau.