The Ganshulu 甘薯錄 "About sweet potatoes" is a short agricultural treatise written by the Qing period 清 (1644-1911) scholar Lu Yao 陸耀 (died 1794), courtesy name Lu Langfu 陸朗夫 or Lu Qinglai 陸青來. He came from Wujiang 吳江, Jiangsu, and obtained the juren degree in 1752. His highest post in the administrative structure was that of governor (xunfu 巡撫) of Hunan. In his book he describes in detail the cultivation, harvesting and storage of sweet potato. It is divided into six chapters and quotes all available sources on sweet potato in older texts. Yet it neglects the difference between the native taro and the sweet potato that was imported from tropical America (fanshu 番薯) and mixes up the two plants. The Ganshulu was first printed in 1776 and is included in the collectanea Ciyantang congshu 賜硯堂叢書, Zhaodai congshu 昭代叢書 and Haisulu congshu 海粟廬叢書.
Source: Li Xueqin 李學勤, Lü Wenyu 呂文鬰 (1996). Siku da cidian 四庫大辭典, vol. 2, p. 1652. Changchun: Jilin daxue chubanshe.