What was the main content of Wang Zhenhong's Book?

Wang Zhen's Book of Agriculture was a very important agricultural book written by an agricultural scientist named Wang Zhen during the Ming Dynasty. This book contained Wang Zhen's research results on agricultural production, fertilizers, soil, crop growth, pest control, etc., which had an important impact on the development of ancient Chinese agriculture. Wang Zhennong's Book mainly included the following contents: 1. Basic knowledge of agriculture: It introduced the basic knowledge of agricultural production such as crops, vegetables, fruit trees, animal husbandry, and planting techniques, including soil, fertilizer, water, and so on. 2. Cultivation of crops: It introduced the planting methods and precautions of various crops, including sowing, transplanting, pest control, fertilizers, irrigation and other techniques. 3. fertilizers and soil: It introduced the functions, usage methods, precautions of various fertilizers, as well as the properties and improvement methods of soil. 4. Crops growth: It introduced the growth patterns of various crops, pest control, seasonal changes, and other aspects. 5. Pest control: It introduced the pest control methods of various crops, including diagnosis, control techniques and preventive measures. 6. Animal husbandry: It introduced the basic concepts of animal husbandry, feeding management, disease prevention and control, etc. Wang Zhen's Book on Agriculture was a comprehensive, systematic and experienced agricultural work, which had a profound impact on the agricultural production technology and management level in ancient China.

Wang Zhen's Agricultural Book was a very important agricultural book in ancient China. Its content covered agricultural production, planting techniques, water conservancy projects, soil fertilizers, tool manufacturing, agricultural economy, and so on. The following are some of the main aspects of Wang Zhennong's Book: 1. Agricultural production techniques: including crop planting, pest control, soil management, fertilizer use, etc. 2. Planting techniques, including crop species, breeding, sowing, weeding, irrigation, harvesting, and so on. 3. Water Conservancy Project: Including irrigation, flood control, drainage, and canal construction, which involves the design, construction, and management of water conservancy projects. 4. Soil fertilizer: Including soil analysis, introduction of fertilizer types, application methods and effect evaluation of soil fertilizer. 5. Farm Tools Manufacturing: Including the purchase, manufacturing, usage, and maintenance of farm tools. 6. Agricultural economy: Including agricultural product sales, agricultural trade, rural land management, and farmers 'income. Wang Zhennong's Book was a very comprehensive and systematic agricultural classic, which had an important impact on the development of agricultural production and agricultural technology in ancient and modern China.

Wang Zhen's Book of Agriculture's " Chapter on Irrigation " mainly introduced the design and construction methods of irrigation systems, including water wheel irrigation, drip irrigation, spray irrigation, gravity irrigation, and other different types. It also introduced the working principle, advantages and disadvantages, and scope of application of each irrigation system. The book also detailed the installation and maintenance of irrigation systems and how to choose the appropriate irrigation method and frequency according to the needs of different crops. In addition, the chapter on irrigation also introduced the quality and treatment techniques of irrigation water to ensure that the irrigation water could meet the needs of crops and avoid pollution to the environment.

The Basheng Chapter was a famous agricultural book written by Wang Zhen in ancient China. The book mainly introduced the basic principles and operation methods of agricultural production, including ploughing, sowing, fertilizing, irrigation, weeding, pest control, and so on. One of the important chapters was the Harrowing Chapter, which mainly introduced how to turn the soil over and level the land by harrowing so that crops could be planted better. The Harrowing Chapter described in detail the steps and techniques of harrowing, including how to choose the right time and place, how to use the right tools, how to open the ground, and how to level the soil. In addition, the book also introduced how to carry out fertilizer, irrigation, weeding, pest control and other agricultural production details, providing important guidance and reference for agricultural production in ancient China. The harrowing techniques and methods introduced in the book had a far-reaching impact on the development of agricultural production in ancient China.

The sowing chapter in Wang Zhen's Book of Agriculture mainly introduced the planting techniques and management methods of crops. In the book, the author Wang Zhen emphasized the importance of planting and introduced the growth habits and planting methods of various crops. For example, the author mentioned how to choose suitable seeds, how to test and improve the soil, how to control pests and diseases, and so on. In addition, the book also explained in detail how to formulate corresponding planting plans according to the climate and topography of different regions to ensure the yield and quality of crops.

The General Formula of Agriculture and Mulberry in Wang Zhen's Book of Agriculture was a book about agriculture and silkworms in ancient China. The content included the following aspects: 1. Agricultural production technology: including planting, irrigation, fertilizer, soil management, agricultural mechanized, etc. The introduction emphasized the scientific and practical nature of agricultural production. 2. Sericultural production technology: including silkworm eggs, breeding, silk production, cocoon silk quality and other aspects of the introduction, emphasizing the professionalism and technical aspects of sericultural production. 3. Agricultural and mulberry economy and management: Including the business, trade, taxation and other aspects of the sericulture industry, emphasizing the overall management and coordination of the agricultural and mulberry economy. 4. Agricultural economic analysis: It includes the analysis of agricultural market, the prediction of agricultural prices, the formulation of agricultural policies, etc. It focuses on the overall grasp and analysis of agricultural economy. Nongsang Tongjue was one of the most important works on ancient Chinese agriculture and sericulture technology. It had great guiding significance for the development of ancient Chinese agriculture and sericulture industry.

The planting chapter of Wang Zhen's agricultural book mainly introduced the cultivation, breeding, pest control and other contents of crops. To be specific, the book's Planting Chapter included the following chapters: 1 Soil fertilizer 2 Sowing Method 3. Interplanting and Rotation 4 Plant species and breeding methods 5. Pest Control 6 Farm Tools and Farming Methods 7 Planting Techniques In these chapters, Wang Zhen's agricultural book described in detail the planting techniques of crops, including how to choose suitable crops, how to plant according to the soil and climate of different regions, how to control pests and diseases, and so on. At the same time, the book also introduced some crop breeding methods, including crossbreeding, selection, and pure line breeding. In general, the Planting Chapter in Wang Zhen's Agriculture Book was a relatively comprehensive agricultural technical guide. It had a certain reference value for people who wanted to engage in agricultural planting.

" Possession Demon " was an exo written by the author, Wang Daowen. It described the emotional entanglements and conflicts between the three members. The protagonists of the story were the three members of Exo, Boxian, Yisheng, and Minkui. They grew up together and had a deep relationship. However, as time passed, their relationship gradually became tense and complicated. In this article, the members experienced many difficulties and challenges, including personal life problems and conflicts between groups. In the story, there was a mysterious relationship between Boxian, Yisheng, and Minkui, which was called "possession". This emotion caused them to have a common illusion that they had a part of each other, which led to tension and conflict between them. At the same time, this emotion also led to many mysterious events and dangerous adventures, causing the members to fall into an unprecedented crisis. Possession attracted the attention and love of many fans with its unique plot and deep character portrayals.

Yang Jiang's " Old Wang " was a novel about a Chinese rural family. It told the story of the protagonist, Old Wang, and his wife, Young Feng. From the perspective of Lao Wang, the novel shows the life, marriage and human relations of a Chinese rural family through the relationship between Lao Wang and his wife. The novel mainly tells the story of Lao Wang's wife, Xiao Feng, who had a low status in her marriage. In order to make a living for the family, she had to do various jobs such as washing clothes, cooking, cleaning, etc. At the same time, Lao Wang was also facing internal conflicts and conflicts within the family, such as conflicts between father and son, conflicts between brothers, and so on. In the end, Old Wang and Young Feng resolved the disputes within the family through mutual understanding, tolerance, and support, and lived a happy life together. Old Wang was a novel that described the family life and marriage feelings in rural China. Through Old Wang's perspective, it showed the lifestyle and interpersonal relationships of rural Chinese families, which deeply reflected the influence of Chinese traditional culture and values.

I don't know what exactly 'Wang Junkai's fetters' refer to. If you can provide more background information or context, I will try my best to answer your questions. I'm not sure what 'two Wang Junkai' means. Maybe it's an initialisation or an initialisation of a word or phrase. If I can provide more information, I will try my best to answer your questions.