贾思勰是北魏末年(公元六世纪)的一位优秀的农业家,对于他的生平,历史上没有具体记载。只知道他是今山东人,曾做过高阳郡(今山东境内)太守,到过山西、河南及河北西部等地,后来回到家乡以农牧为业,并于公元533—544年间完成了一部杰出的著作《齐民要术》,(以下简称《要术》)。西晋末年以后,北方黄河流域一带长期处于战乱状态,经济和文化都遭到严重的破坏。自鲜卑跖跋氏统一北方建立北魏王朝后,经跖跋(玉圭)、冯太后相继推行法家的革新路线,情况有所好转。但由于土地的大量集中,绝大多数劳动人民都已丧失了土地,阶级矛盾和民族矛盾仍然十分尖锐。公元486年,北魏推行均田制,在一定程度上限制了豪门对土地的兼并。在当时,如何发展农业生产,是一个重要问题,《要术》也就是在这种条件下产生的。它是 Jia Si is a good agricultural scientist at the end of the Northern Wei Dynasty (the 6th century AD). There is no historical record of his life. Only know that he is now Shandong people, had done Goyang County (now Shandong territory) prefect, had been to Shanxi, Henan and western Hebei and other places, and later returned home to agriculture and animal husbandry for the industry, and in AD 533-54 years completed An outstanding book “Qi Min Yao Shu”, (hereinafter referred to as “surgery”). After the end of Western Jin Dynasty, the Yellow River basin in the north has been in a state of war for a long time and the economy and culture have been seriously damaged. Since Xianbei metatarsalis and Bashi’s unified North established the Northern Wei dynasty, the situation has been somewhat improved after the metatarsal and metacarpal postscript (Yu Kyu) and Rev. Empress Feng have all followed the Renaissance line. However, due to the large concentration of land, the vast majority of working people have lost their land. The class contradictions and ethnic conflicts are still acute. In 486 AD, the Northern Wei Dynasty implemented a land leveling system, which limited the wealthy’s merger to a certain extent. At that time, how to develop agricultural production was an important issue. That is to say, “surgery” is also produced under such conditions. it is