Chén Fū 陳旉 (1076–1154), Northern–Southern Sòng transition agricultural-treatise writer. Self-styled Xīshānyǐnjūquánzhēnzǐ 西山隱居全真子. Native of Yángzhōu 揚州 region, retired to the Xīshān (Western Mountains) of Yízhēn 儀真. Author of the Nóng shū 農書 (KR3d0002, 3-juan agricultural manual focused on Lower-Yangzi rice cultivation, completed Shàoxīng 19 / 1149).