在我国古代的农业科学著作中,比较完整系统的最早一部是《齐民要术》。作者是公元六世纪北魏末年的一位杰出的农业科学家——贾思勰。贾思勰写作《齐民要术》,是在我国北方社会经济开始恢复的北魏时期。黄河流域一带自西晋末年之后,长期处于战乱状态,经济和文化遭到了严重的破坏。北魏孝文帝实行的均田制, In ancient Chinese agricultural science writings, the earliest part of a relatively complete system was “Qi Min Yao Shu”. The author is an outstanding agricultural scientist in the late Northern Wei Dynasty in the sixth century AD - Jia Sijie. Jia Sifu writing “Qi Min Yao Shu” is the Northern Wei Dynasty in the north of our country social economy began to recover. Since the end of the Western Jin Dynasty, the Yellow River basin has been in a state of war for a long time and its economy and culture have been seriously damaged. Northern Wei Xiaowen emperor practiced the land system,