In the spring of 2006, Su planted Tainan No. 1 and Kaohsiung No. 10 soybeans, and harvested 2,000-2,500 kilograms per hectare. In the fall, he went with an Australian variety that yielded 3,000 kilograms per hectare, or nearly twice what farmers in other townships brought in.
他在 2006 年春季栽種台南 1 號、高雄 10 號大豆，一公頃種籽產量在 2,000 到 2,500 公斤；秋作則改種澳洲種，產量高達 3,000 公斤，幾乎是別的鄉鎮的 2 倍。