One of the earliest and most complete agricultural books preserved in the world is China s .

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b Detailed explanation of the topic:

Jia Sixian, the Northern Wei Dynasty, was the Taishou of Gaoyang County (now northwest of Linzi, Shandong). The book "Qi Min Yao Shu" is the first agricultural encyclopedia in China. The book was written around the sixth century AD.

In the thirties and forties, it was the culmination of agricultural production knowledge from the Zhou, Qin and Northern Wei dynasties, and the content was very rich. The book consists of 10 volumes, 92 articles, more than 110,000 words, 156 kinds of relevant books, and more than 30 agricultural proverbs and ballads, scientifically summarizing the experience of agricultural production during this period. The book emphasizes the importance of tillage knowledge and drought prevention and moisture protection, discusses different farming methods adopted according to different weather conditions and geographical advantages, and summarizes a set of measures for tillage, harrowing and drought protection. The book makes a scientific summary of seed selection, and records the methods of water selection, seed pouring, seed drying and other seed treatment methods, as well as the germination technology of rice. The book also deals specifically with the maintenance and improvement of soil fertility.

Particularly prominent is the "crop rotation" method, which is a scientific summary of the practical experience of China's working people in soil cultivation and crop rotation in the past; The book describes in detail the experience of livestock breeding, especially the experience of animal husbandry of ethnic minorities, and records the identification of livestock breeds, feeding management, retention of improved breeds, breeding of young animals and veterinary prescriptions. The book also reflects the rich biological knowledge that China has in ancient times. It is recorded that at that time, there was already a grafting method of asexual reproduction, and the biological advantages of mules born from the cross of horses and donkeys were also understood, and not only the microbial fermentation technology was mastered, but also rose to the level of regularity. In short, the book is a scientific work written with a scientific attitude, reflecting the level of agricultural production technology in northern China at that time.

Much of this knowledge is still an important reference and is still in use, such as the grafting of trees, the method of smoke and frost prevention of fruit trees, and the method of burying vines in the winter of grapes, which are mostly the same methods used today. "Qi Min Yaoshu" is not only a national treasure, but also has a certain influence in the world, especially in Japan, known as "Jia Xue", and also set up a special "Qi Min Yaoshu" research society, translated and published a variety of editions. The engraved copy of the Chongwen Institute in the Northern Song Dynasty during the Tiansheng period of the Northern Song Dynasty found in Gaoshan Temple in Kyoto, Japan, is the only one in the world and is now stored in the Kyoto Museum in Japan.

The earliest work on agricultural science is the Book of Victory.

It is an important agricultural work in the late Western Han Dynasty. The Book of Victory, Qi Min's Technique, the Book of Agriculture, and the Complete Book of Agricultural Administration are the four major agricultural books in ancient China.

The earliest work on agricultural science is the Book of Victory, which is an important agricultural work in the late Western Han Dynasty. The book of Han Shu Art and Literature is recorded as "Eighteen Chapters of "The Book of Victory", which is the common name of later generations. The Book of Victory, Qi Min's Technique, the Book of Agriculture, and the Complete Book of Agricultural Administration are the four major agricultural books in ancient China.

The year of birth and death is unknown, and he lived at the end of the Western Han Dynasty in the 1st century BC. Pan Shengzhi is a native of Fan Shui (now north of Cao County, Shandong), a famous ancient agronomist. The Book of Victory is an important agricultural work in the late Western Han Dynasty.

The book records the principles of farming, crop cultivation techniques and seed breeding in the middle reaches of the Yellow River, and other agricultural production knowledge, reflecting the great creations of the working people at that time.

The earliest surviving complete agricultural book in China is the "Qi Min Yao Shu" written by Jia Sixian, an agronomist in the Northern Wei Dynasty.

Qi Min Yao Shu is a comprehensive agricultural book, the first of the five major agricultural books in ancient China, which describes the agricultural production in the lower reaches of the Yellow River Basin, that is, the southeastern part of present-day Shanxi, the south-central part of Hebei, the northeastern part of Henan, and the north-central part of Shandong, and outlines the production technology knowledge of agriculture, forestry, animal husbandry, fishery, and sideline departments.

Jia Siqian believed that the level of agricultural science and technology was related to whether the country was rich and strong, so he came up with the idea of writing a book on agriculture. During his time as an official, he traveled to many places. Everywhere he went, he attached great importance to agricultural production, and he used to personally engage in agricultural production practices, conduct various experiments, raise livestock, and grow grain.

It not only pays attention to hands-on practice, but also is good at learning from experienced old farmers, and absorbs the valuable experience summed up by working people in long-term production and life.

Finally, on the basis of summarizing the experience of predecessors, combined with the production knowledge obtained from experienced old farmers and the personal practice and experience of agricultural production, he carefully analyzed, systematically sorted, summarized and summarized, and finally completed the "Qi Min Yao Shu".

The influence of the later generations of "Qi Min Yaoshu":

Qi Min Yao Shu can be interpreted as a method of livelihood for civilians, and it can also be interpreted as a method of governing people's livelihood. Since the Tang and Song dynasties, there have been many agricultural books, all of which take it as a model, among them, Yuan's "Agricultural Mulberry Collection", Wang Zhen's "Agricultural Book", Xu Guangqi's "Complete Book of Agricultural Administration" in the Ming Dynasty, and the Qing Dynasty's "General Examination of Time" are all influenced by it.

Qi Min Yaoshu systematically summarized the knowledge of agricultural science and technology in the Yellow River Basin of China since the Qin and Han dynasties, preserved the essence of agricultural technology in the Han Dynasty, and focused on summarizing the new experience and achievements of dryland agriculture in northern China after the Book of Bisheng, and in the following 1,000 years, the development of dryland agricultural technology in northern China basically did not exceed the direction and scope of its summary, and opened up a way to follow for many agricultural books in China later.

The earliest surviving complete agricultural book in China is the "Qi Min Yaoshu" written by Jia Siqian of the Northern Dynasty.

The book summarizes the production technologies of agriculture, forestry, animal husbandry, sideline products, and fishery, and is very rich in content. Jia Siqian sorted out the agricultural knowledge recorded in ancient books, collected folk songs and proverbs, and learned from the production experience of farmers.

He also proved and enriched these experiences in production practice, emphasizing that agricultural production should follow the laws of nature, and that crops must be planted according to local conditions.

Qi Min Yao Shu praised Geng Shouchang's Chang Ping and Sang Hongyang's average loss method as "the art of benefiting the country and the people, immortality", and ridiculed Confucius for "not being diligent in the four bodies, and not dividing the five grains".

Jia Siyun has established a relatively complete agricultural science system, and has made a reasonable classification of agricultural categories characterized by practicality. A series of processes such as land reclamation, cultivation, post-production processing, brewing, and utilization are described in detail, and also discuss planting, forestry, and various aquacultures.

The earliest and most complete agricultural book in China is "Qi Min Yaoshu".

Qi Min Yao Shu is a comprehensive agricultural work written by Jia Sixian, an outstanding Chinese agronomist during the Northern Wei Dynasty and the Song to Liang dynasties in the Southern Dynasties, and is also one of the earliest monographs in the history of agriculture in the world, and is the earliest complete agricultural book in China. The book systematically preserves the essence of ancient agricultural technology, summarizes the agricultural production experience of more than 400 years in the Wei and Jin dynasties, and is the earliest, most complete and most comprehensive and valuable ancient agricultural work in the world.

Qi Min Yao Shu is regarded as a symbol of China's ancient agricultural system, and is also known as "the encyclopedia of ancient Chinese agriculture".