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What types of silkworm diseases are there? A full analysis of common types
Silkworm diseases can be divided into two categories: one is infectious diseases, and the other is non-infectious diseases. Any disease caused by pathogenic microorganisms such as viruses, bacteria, and fungi invading the silkworm body and then multiplying is an infectious disease. It can be transmitted from diseased silkworms to healthy silkworms and is an important factor affecting sericulture production. Any disease of silkworms caused by attacks by arthropods (fly maggots, lice mites), pesticide poisoning, and mechanical trauma is called a non-infectious disease. It cannot cause healthy silkworms to become ill through silkworms as a medium, and it is also an important factor affecting sericulture production.
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How Should Potatoes Be Stored? A Full Analysis of Scientific Preservation Techniques
How to scientifically store fresh potatoes for seed, food and processing use is a key link in extending the potato industry chain. Through scientific storage, market supply and demand can be regulated and value can be increased by 20% to 30%. Through in-depth investigation and research and production practice, the author discusses the current potato storage situation in Weichang County, the existing problems and scientific storage methods. 1. Current potato storage situation in Weichang Although farmers in Weichang have the habit of storing potatoes and have accumulated rich storage experience, there are also many
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Chinese-American biologist successfully breeds double-gene transfer cloned pig
The University of Connecticut in the United States announced recently that renowned Chinese-American biologist Yang Xiangzhong, in cooperation with the scientific research department of Taiwan, China, has bred the world's first double-gene transfer cloned pig carrying human coagulation factor IX and porcine lactoferrin. This research achievement is expected to be used to treat hemophilia. According to Yang Xiangzhong, a professor at the University of Connecticut, this research was conducted under extreme secrecy by his research team in cooperation with the Taiwan Animal Technology Research Institute. The first cloned pig was born on February 15 this year at the Taiwan Animal Research Institute
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Soybean molecular breeding technology successfully developed by South Korea
The Agricultural Biotechnology Research Institute of South Korea's Rural Development Administration recently successfully developed a soybean molecular breeding technology, which means that South Korea's mass production of organic soybeans containing anti-cancer components will become a reality. South Korea's regeneration technology for soybean plant bodies through tissue culture is not well developed, so trait-transformed soybeans are mainly imported from the United States. The Rural Development Administration revealed that molecular breeding technology is called third-generation genetic engineering technology. Using this technology, soybeans with higher added value can be produced, which is of great significance for increasing farmers' income.
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New colorful soybean varieties successfully cultivated in Henan
A type of soybean displaying a riot of colors has recently been successfully cultivated by the Agricultural Science Institute of the Huangfanqu Farm in Henan Province and has begun to be vigorously promoted. Besides the commonly seen yellow, this soybean also comes in black, red, green and other colors, and each color is further divided into several sub-varieties according to the depth of its shade. Colorful soybeans are a high-efficiency cash crop; besides being eaten, they also have high ornamental and medicinal value. Compared with the ordinary soybeans cultivated in the past, the newly cultivated colorful soybeans show no difference in planting techniques or yield. According to expert predictions, the market
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Under full-light cultivation of Schisandra chinensis, Welsh onion or Schisandra chinensis seedlings can be intercropped
To make full use of the land between the rows of cultivated Schisandra chinensis, before the Schisandra chinensis plants reach fruit-bearing at 4 years of age, intercropping Welsh onion or Schisandra chinensis seedlings can yield certain economic benefits to offset the costs of cultivating Schisandra chinensis. I. Planning 1. When Schisandra chinensis is cultivated with a row spacing of 1.5 m and a plant spacing of 0.5 m, the available inter-row land area per mu (667 sq m) of Schisandra chinensis orchard is as follows: for each mu (667 sq m) of land, estimated by a long side of 33 m and a short side of 20 m (660 sq m), with a row spacing of 1.5 m, 22 rows can be laid out, each 20 m long; at the early stage of cultivation, the horizontal spread of the Schisandra chinensis root system is not large, so the width of the Schisandra chinensis seedling belt can be kept at 80 cm (40 cm on each side), the usable inter-row width is 70 cm, leaving a ditch width of 10 cm on each side, and one ridge 50 cm wide can be formed, on which 2 rows of Welsh onion are planted, with a row spacing of 10-15 cm and a plant spacing of 10 cm. Based on this calculation, each inter-row space can plant 10 sq m of Welsh onion, and each mu of Schisandra chinensis orchard can plant 22 rows of Welsh onion, requiring 9,680 Welsh onion sets; each Welsh onion set is 1.5-2 cm in diameter, about 80 per jin, so about 120 jin of Welsh onion sets are needed, and the plantable Welsh onion area is 220 sq m.
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How to Choose Honeysuckle Varieties? A Full Analysis of Seed Selection Techniques
The scientific name of honeysuckle is Lonicera japonica, a semi-evergreen perennial twining vine shrub. It is a commonly used traditional Chinese medicinal herb, known as a natural broad-spectrum antibiotic. At the same time, honeysuckle can also be made into a precious beverage. In recent years, with the expansion of honeysuckle's application fields, its cultivation has moved from extensive management to concentrated operation, from a prostrate growth habit to an upright growth habit, and from one flower harvest per year to four flower harvests per year, greatly increasing yield and significantly improving cultivation benefits. At present, many places are introducing or expanding cultivation, but if variety selection is not taken seriously, the results will be contrary to expectations.
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How is candied potato processed? A full breakdown of the detailed processing technique
1. Material selection: Select potato tubers that are uniform in size, plump, smooth on the surface, and free of green spots to make candied potato. 2. Shaping: Wash the soil off the tubers with clean water, remove the skin and wash again, then cut into blank pieces of various shapes as needed. 3. Soaking: Put the shaped blanks into a container, pour in a certain concentration of dilute limewater and soak for 16 hours, then take them out and rinse in clean water 4 times, 2 hours each time. 4. Boiling the blanks: Put the soaked blanks into boiling water and boil for 20 minutes, then put them into clean water
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A Full Analysis of the Key Points of Pear Cultivation Techniques in the South
With the development of pear production, the original pear varieties in Tongxiang gradually revealed their shortcomings: the fruit-setting performance of Huanghua pear is unstable, and its ripening period is vulnerable to typhoons, while the ripening period of Xinshiji is prone to fruit cracking, causing heavy losses in some years. To adapt to market demand, pear varieties mainly consisting of Cuiguan and Cuilv have been promoted in recent years, achieving good benefits. 1.
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How Are Russian Olive Foods Developed and Utilized? A Full Explanation of Pathways and Value
Russian olive (Elaeagnus angustifolia L.), also known as Guixiang willow, silver willow, or Qilixiang, belongs to the Elaeagnaceae family, genus Elaeagnus. It is an evergreen shrub. Russian olive is light-demanding, cold-tolerant, highly resistant to wind-blown sand and saline-alkali conditions, grows fast, has wide uses, and holds high economic value. Russian olive is distributed in Shaanxi, Gansu, Inner Mongolia, Ningxia, **, Qinghai and other places; in ** it is found in the Taklamakan Desert and along the banks of various rivers, and it is also distributed in Yili, Toksun and other places in northern **. Russian olive is a "treasure tree" of desert saline-alkali land; its edible value and medicinal value are both very high, and it has great potential for development into green foods.
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