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The Battle Over Epidemic Prevention and Food Waste 15"A More Scientific Era for Black Pigs! Livestock Research Institute Develops Specialized Feed, Pig Farmers: Looking Forward to More Research and Development, Moving Toward Transformational Development
The Battle Over Epidemic Prevention and Food Waste 15"A More Scientific Era for Black Pigs! Livestock Research Institute Develops Specialized Feed, Pig Farmers: Looking Forward to More Research and Development, Moving Toward Transformational Development
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Virus-free Technology and Industrial Development of Superior Potato Varieties
Aiming at the main problems currently existing in potato production, this study seized the favorable opportunity of planting-structure adjustment and extensively introduced superior potato varieties from home and abroad. Through trials and market-demand surveys, "Luyin No. 1" was selected as the main cultivar for Qingdao, with Kexin No. 3, Kexin No. 4 and Huayuan 525 as companion cultivars. Through systematic research on virus-free technology, rapid propagation technology and the acclimatization and transplanting technology of virus-free test-tube plantlets, the optimal virus-free protocol for potato was determined: taking 0.1-0.2
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What are the growth and development characteristics of Panax notoginseng?
Panax notoginseng seeds have after-ripening characteristics and must be stored under moist conditions to complete physiological after-ripening and germinate. Once the seeds dry out, they lose their viability. A one-year-old seedling grows only 1 palmately compound leaf; in winter the stems and leaves wither, and around the spring equinox of the second year, new shoots emerge from the rhizome above ground. In winter it is dormant, and in spring of the second year it sprouts and grows stems and leaves. If the young bud is damaged that year, it cannot germinate into a seedling the following year and must remain dormant underground for one year; after a new bud forms the following year, a new shoot grows in the spring of the third year. One-year-old plants do not bolt
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In the field of licorice research and development, our country has become the leader
It was recently learned at the founding conference of the Special Committee on Chinese Materia Medica Pharmaceutics of the World Federation of Chinese Medicine Societies and the International Symposium on Chinese Materia Medica Pharmaceutics that our country has successfully applied chiral catalysis technology to the purification of the active ingredients of licorice, increasing it from 3% to 97%, greatly saving medicinal materials. At the same time, following the recent introduction of the Class I new drug and chiral liver drug "Tianqing Ganmei", this shows that our country has already taken a world-leading position in the research, development and innovation of licorice preparations. Chiral technology works by scientifically adjusting the chemical structure arrangement
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How to manage greenhouse apricots in spring? Focus on management to promote development
For apricot trees in a winter-warm greenhouse, the fruit development period runs from mid-February to the end of April, and this period is divided into three main development stages. The first stage is the first rapid growth period of the apricot tree and the new shoot growth period, lasting 28-34 days; the second stage is the pit-hardening period, lasting 8-12 days; the third stage is the second rapid growth period of the apricot fruit and the new shoot growth period, lasting 20-30 days. Management work for the first stage: after flowering, apply 0.5 kg of nitrogen fertilizer and 1 kg of phosphorus fertilizer per tree, and within two weeks after flowering spray 0.3% urea once every 7 days. After leaf expansion, spray Yibianjing or Yashijing
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Eight Major Disease Prevention and Control Measures for the Green Development of Mushrooms
Establish the "big prevention and control" concept of integrated management. The occurrence, and even the epidemic or outbreak, of edible mushroom diseases all follows certain developmental patterns. Patterns are science, and no carelessness is tolerated. On the surface, diseases appear only at a certain production stage, but the occurrence of disease requires quite a few conditions. If any one condition cannot be met, the occurrence of disease may be reduced, lowered, or even impossible, or even if it occurs, it cannot cause harm. Therefore, one should not only prevent or treat at the stage where the disease occurs, but should start from the source
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What are the temperature requirements for soybean growth and development?
Soybean is a warmth-loving crop, and the accumulated temperature required by soybean varieties in Heilongjiang Province is about 1800-2700°C. (1) The optimum temperature for seed germination is 18-20°C, at which germination is fast and seedlings emerge evenly; the minimum temperature is 6-8°C, but germination is very slow; when the temperature reaches 33-36°C, germination is fastest, but the seedlings are weak. (2) The minimum temperature required for emergence is 8-10°C. (3) For flower bud differentiation, 21-23°C is more suitable. For flowering, 22-25°C is more suitable. If the temperature is too high or too low, there will be fewer flowers. (4) The suitable
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Analysis of the problems existing in the development of the eel industry and the countermeasures and suggestions
I. Seedlings and fingerlings The main species farmed for eel in China are the Japanese eel (Anguilla japonica) and the European eel (Anguilla anguilla). The resources of both the European eel... have already approached exhaustion, with annual production falling from 3,000 tons 30 years ago to 100-200 tons. From June 3 to 15, 2007, at the Conference of the Parties to the "Washington Convention" (CITES) held in the Netherlands, the European eel was listed in Appendix II of the Convention on Endangered Species of Wild Fauna and Flora, and this will be formally implemented starting in January 2009: China imports about 60 tons, or about 150 million individuals, of European eel seedlings and fingerlings annually, and farmed European eel accounts for more than 1/3 of eel production, while European eel accounts for about 40% of exported roasted eel. Japanese eel resources have also severely declined. In recent years, the seedling and fingerling resources of Japanese eel in Asia have remained at about 100 tons, and the annual catch in recent years has remained at 80-100 tons. In 2008, the output of European eel seedlings and fingerlings was about 90 tons, half of a normal year. The output of Japanese eel seedlings and fingerlings was about 35 tons, one third of a normal year. The severe shortage of seedling and fingerling resources has led to soaring prices. Moreover, artificial breeding of eel seedlings and fingerlings will not be able to form production capacity in the near future.
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The development prospects for Butterfly Bush are extremely broad
Butterfly Bush is the most popular landscaping tree species in Europe and America, and is highly suitable for promotion in North China, Central China, East China, and parts of Northeast and Northwest China. In terms of landscaping effects, this tree species has many advantages. It is a perennial, fast-growing, semi-evergreen shrub with grayish-green leaves that are large and opposite, about 25 cm long. From summer to late autumn, it continuously blooms with lush panicles, the inflorescences about 40 cm long, in diverse colors including purple, blue, pink, white, and yellow. The flowering period lasts up to 6 months, which can compensate for the scarcity of blooming plants in summer. The flowers have a strong fragrance, attracting many
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Development and Utilization Value and Methods of Kernel Apricot Flesh
I. Dried Apricot Processing 1. Process flow: apricot flesh → washing → sulfur fumigation → drying → finished product 2. Technical points: (1) Washing. Select flesh that is uniform in appearance, fully ripe, with no fuzz on the fruit surface, small in fruit size and thick in flesh; wash clean with water and drain off the moisture. (2) Sulfur fumigation. Send the material baskets or bamboo trays holding the apricot slices onto the wooden racks in the fumigation room, pour the burning charcoal into the iron pan in the center of the fumigation room, quickly sprinkle sulfur (3-4 kg of sulfur per 1000 kg of apricot slices) onto the charcoal, then leave the fumigation room immediately
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