The Book of Bi Sheng, recognized as the earliest agricultural book, was written during the reign of Emperor Wu of the Han Dynasty. At the beginning, it mainly described the cultivation methods of some agricultural products. The main crops are grass, millet, wheat, rice and barnyard grass, but rice is not the main crop. In terms of clothing, hemp and mulberry are the main crops.
The Book of Qi Yao Min is the most famous agricultural guide in modern people's minds, because it has entered the history textbook, and this book is more popular and easy to understand, because the author Jia Sixie has personal experience, and is closer to farmers' lives in all kinds of agricultural knowledge, even in the use of farm tools, which has different records, which has made great contributions to ancient agriculture.
The agricultural books of the Yuan Dynasty, which are said to belong to the Yuan Dynasty, actually belong to the end of the Song Dynasty. Written when the Yuan Dynasty was founded, it mainly introduced farming experience. This was written by Wangzhen in the late Song Dynasty. He is the father and mother of a county. Besides his agricultural experience, he also grafted some agricultural fruits.
If the first three books are all pure agriculture, the Book of Agricultural Administration is a propaganda book. Apart from agriculture and politics, there are clear records of what crops and famine years can contain everywhere, and there are more than 400 kinds of alternative foods in the book. In addition, it has a unique record in disaster relief and post-disaster management. It is actually a guide to people's survival rather than an agricultural guide.
These books related to agriculture are all improving, and the really good one is The Complete Book of Agricultural Administration, because only technology is in front and survival is behind.