As part of the effort for agricultural extension, Cheng Shu-hsing has come into contact with many indigenous people. He hopes that full support can be provided for production and marketing, but the only problem is, he says, "Most of the farmers who take the initiative to come in and inquire about cultivation of wild vegetables are Han Chinese."
為了推廣山蘇和山苦瓜種植，鄭書杏曾與許多原住民接觸，希望從技術到產銷都能全力支援，只是「主動前來詢問野菜種植的農民還是以漢人較多」，鄭書杏說。