乌桕(Sapium sebiferum Roxb)是我国特产的经济林木,我省普遍生长,亦是重要的经济树种之一。我省群众俗称乌桕为“棬子”,称桕油为“棬油”或“木油”。乌桕栽培利用历史已愈千年,《齐民要术》中著有栽培利用之法,而《农政全书》中则记载更为详细,并提倡广大百姓种植。乌桕能生产两种油脂,一为桕脂,是桕籽外种皮加工的脂,又称为皮 Sapium sebiferum Roxb is a special economic forest in China. It grows generally in our province and is also one of the important economic tree species. Commonly known as the crowd in our province Wuyi as “prickly heat,” said the emu oil as “emu oil” or “wood oil.” The history of cultivation and utilization of Chinese tallow tree has been on the rise for more than a thousand years. There is a law of cultivation and utilization in “Qi Min Yao Shu”, while the book “The Complete Collection of Agriculture” records more details and encourages people to plant it. Black puffer can produce two kinds of fat, one is fat, is the seed coat seed processing fat, also known as leather