Ganshu, also known as sweet potato, sweet potato, and sweet potato, is a traditional food crop in my country. It has high and stable yields, strong resistance to stress, saves water, tolerates barrenness, has few pests and diseases, and has the functions of grain, vegetable, and fruit. Since the 1980s, the anti-cancer health care ingredients and functions of sweet potatoes have been gradually revealed by domestic and foreign scientists. People have found that sweet potatoes contain a large amount of mucin polysaccharides, dietary fiber, multivitamins, anthocyanins and trace elements. Its anti-cancer and health-care effects rank first among many vegetables. In addition, sweet potatoes have few pests and diseases because the stems and leaves contain trypsin inhibitors that are toxic to insects. Therefore, pesticides are generally not used, making it a pollution-free vegetable. Green food. Currently, the sweet potato craze is all the rage internationally, so the prospects for sweet potato internationally are very good, and the domestic sales market has also started. Farmers are now very profitable in growing sweet potatoes. The average output value per mu is 600-800 yuan. If further processed into starch, The output value of preserved potatoes can be doubled, usually more than 1,000 yuan. It is feasible whether selling fresh potatoes or engaging in deep processing. "CCTV7 Nongguangtiandi VCD CD - High-Quality Sweet Potato Cultivation Technology" genuine CD Sweet potato is also called sweet potato and sweet potato, and has a long history of cultivation in my country. Sweet potato has strong adaptability, drought resistance and disease resistance, high yield and wide use. This film introduces to you: the biological characteristics of sweet potatoes, the use and cultivation of virus-free sweet potato seedlings—virus-free potatoes, the differences between virus-free potatoes and ordinary potatoes, and the cultivation steps of virus-free potatoes. "CCTV7 Nongguang Tiandi VCD CD - Spring sweet potato "three stages and four phases" high-yield cultivation technology and sweet potato soilless cultivation technology for continuous potato formation" genuine CD. Sweet potato is also called sweet potato, sweet potato and potato. Sweet potato has high yield, wide range of uses and strong adaptability. It is an important food crop in my country. The pollution-free "three-stage and four-stage" high-yield cultivation technology of spring sweet potato has solved the problems of traditional sweet potato cultivation such as high cost and low yield. This film introduces to you: sweet potato seedling stages, field cultivation stage, harvest and storage stage. We are all too familiar with sweet potatoes and sweet potato cultivation patterns. However, have you ever seen a sweet potato tree growing in water? Did you know that sweet potatoes can grow in the air to achieve continuous potato production and year-round harvest? This film introduces you to the technology of soilless cultivation of sweet potatoes for continuous potato production: sweet potato growth environment, cultivation facilities, seedlings, planting and transplanting, post-transplanting management, and pest and disease control. "Agricultural Planting VCD - Sweet Potato Seedling Cultivation Technology" Genuine CD 1, Sweet Potato Seedling 2, Sweet Potato High Yield Cultivation "Cultivation Technology of Vegetable Sweet Potato, Sweet Potato Mechanized Ribbing, Film Covering and Harvest VCD 1 Disc" Publisher: Agricultural Education Audio and Video Press Vegetable sweet potato is a new sweet potato variety that mainly produces tender stems and leaves. It has the characteristics of tender stem tips, good palatability, low crude fiber content, and rich nutrition. This variety has strong resistance and wide adaptability. It is a new, exotic and special sweet potato variety worthy of large-scale promotion. The use of rotary tillage, fertilization, ridging, mulching machines and sweet potato excavators can greatly reduce manual labor intensity. Although the entire process of sweet potato cultivation has not yet been mechanized, at this stage, conditions have been created for expanding the scale of sweet potato cultivation. This program introduces the cultivation technology of vegetable sweet potatoes and how to use machinery to cover, ridden and harvest sweet potatoes. The official book "Sweet Potato Cultivation Technology" "Sweet Potato Cultivation Technology (Revised Edition)" is written by researcher Yuan Baozhong of the Sweet Potato Professional Committee of the Chinese Crop Society ed. The first edition was well received by readers. This revision focuses on supplementing and updating the introduced varieties. The revised content includes: Overview of sweet potato production in my country, sweet potato morphological characteristics, distribution and growth, seedling raising, cultivation techniques, harvest and storage, fine varieties and breeding of improved varieties, and prevention and control of major diseases and insect pests. The technology is advanced and practical, and the text is easy to understand. It is suitable for farmers, agricultural technology extension personnel and teachers and students of agricultural colleges to read. The total print run of "Sweet Potato Cultivation Technology (Revised Edition)" has reached more than 110,000 copies. Table of Contents Chapter 1 Overview of Sweet Potato Production in my country Chapter 2 Morphological Characteristics of Sweet Potato 1. Roots 2. Stems (vines) 3. Leaves 4. Flowers 5. Fruits and seeds "100 Questions on Sweet Potato Technology" genuine book Table of Contents