One of the experts, National Taiwan University's Cheng Cheng-yung, told the growers, "The soil can't stand any more large-scale planting, so you're going to have to switch to precision cultivation."
台大園藝系鄭正勇教授是其中之一，他告訴果農：「玉井的土壤已不能再從事粗放的果樹栽培，必須實施精密的栽培。」