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Winter Management Methods and Technical Key Points for Gastrodia elata in Jilin Province
Jilin Province has a long, cold winter, during which Gastrodia elata is in a dormant state. Preventing freezing damage and rot in Gastrodia elata is the key to achieving a bumper harvest. ① Management of pit-cultivated Gastrodia elata. Pit-cultivated Gastrodia elata usually overwinters outdoors. Before the onset of winter, the soil moisture in the Gastrodia elata pit should be kept at 30%-40%, and excessively wet conditions and water accumulation should be prevented. Drainage ditches should also be dug around the Gastrodia elata pit to prevent snowmelt water from flowing into the pit. Before freezing, cover the Gastrodia elata pit with a 15 cm thick layer of leaves or weeds, then add 20-30 cm of cold-protection
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Several Key Technical Measures for Increasing Gastrodia elata Yield
Gastrodia elata is a precious Chinese medicinal herb. In order to solve the problems commonly found in current artificial cultivation of Gastrodia elata, such as unstable yield, severe degeneration, and susceptibility to pests and diseases, the Edible Fungi Research Institute of our county carried out research on high-yield, stable-yield, and high-quality cultivation models for Gastrodia elata, and achieved certain results. The several techniques for how to increase Gastrodia elata yield are summarized as follows: 1. Choose a suitable cultivation site: Gastrodia elata is suitable for growing in areas with cool summers and winters that are not very cold. It requires moist soil, but not waterlogged, and rich in humus.
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How to Apply Fertilizer Skillfully to Cotton? A Explanation of Practical Technical Points
Fertilizer is the material basis for high cotton yields, and applying fertilizer according to need is the highest principle of cotton fertilization. Where conditions allow, soil testing and fertilizer recommendation should be carried out, and based on the available nutrient content of the soil and the needs for high cotton yields, the type and amount of fertilizer to apply should be determined. For most cotton fields in the north, the amount of potassium fertilizer should be increased, the amount of phosphorus fertilizer reduced, and nitrogen fertilizer mainly used for topdressing, or a formula fertilizer with "high potassium, low phosphorus, medium nitrogen" should be applied. If a compound fertilizer with equal amounts of nitrogen, phosphorus and potassium is used, the amount per mu should not exceed 25 kg, plus an additional 12.5 kg of potassium fertilizer
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Detailed Explanation of Key Technical Points for Formula Fertilization of Cotton
Cotton has an indeterminate growth habit, strong regeneration capacity, highly controllable plant architecture, and a high fertilizer demand. Generally speaking, adequate fertilizer is the foundation for high yield and quality in cotton. Sufficient phosphate fertilizer can promote vigorous growth of cotton plants, increase boll weight, and advance maturity. Potassium fertilizer is a catalyst for various enzymes in plants, and can promote photosynthesis and cellulose synthesis. The fertilization technique for cotton is the eight-character formula fertilization method of "adjust nitrogen, increase potassium, supplement phosphorus, spray boron." Specifically, the following 5 technical measures should be well implemented. 1. Attach importance to the application of farmyard manure
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Technical Points for Spraying Foliar Fertilizer on Cotton to Increase the Boll Setting Rate
This year, the summer-ripening crops in Haimen City were delayed in maturity due to climate effects, and after the summer harvest there was a continuous drought until mid-July, when it rained heavily for several consecutive days. This weather pattern of drought followed by rain was very unfavorable for the survival and growth of the already delayed transplanted cotton, and the growth process was delayed by about 10 days compared with normal years. To increase the formation speed of flower buds in the late stage of cotton and improve the boll setting rate, it is recommended to strengthen fertilizer management in the late stage by means of foliar spraying. 1. Combine pest control with proper timing of fertilizer application. Not every pest control treatment requires
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How to carry out field management of cotton during the flowering and boll stage? Technical Q&A
1. What is the flowering and boll stage? The stage from flowering to boll opening, generally from early July to early September. There is a farming saying, "flowers see flowers forty-eight," but in fact in China's Yellow River basin it generally takes 50-70 days. When 10% of the cotton plants in the field have flowered, it is called the initial flowering stage; when 50% have flowered, it is called the flowering stage. When 50% of the cotton plants have the first fruiting node of the fourth fruiting branch flowering, it is called the full flowering stage. 2. What are the management principles during the flowering and boll stage? The initial flowering stage is the transition from vegetative growth to reproductive growth, and management should focus on control, preventing
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What are the key technical points of Taishan eel farming in earthen ponds?
The Taishan earthen pond eel farming model is an extensive farming model developed by referring to the earthen pond farming model for Chinese carp. Its characteristics are: ① The ponds are large, generally more than 4 mu, up to 20-30 mu, and developed in contiguous tracts; ② The stocking density is low; ③ Water sources are insufficient, and the water is used for a whole grow-out cycle, with a water depth within 1.2 m; ④ The soil quality is good, mainly loam; ⑤ Aeration facilities are fully equipped; ⑥ The feeding method is to feed to satiation at every meal until feed remains; ⑦ The annual grow-out rate is above 90%. Taishan earthen ponds are mostly developed from land created by reclaiming land from the sea and enclosing it into fields, and the soil is mostly loam, with water retention performance.
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Prevention and Control Methods and Technical Key Points for Protozoan Diseases in Large Yellow Croaker
(1) Pathogen: Cryptocaryon irritans (Crypjocaryonirrions). (2) Symptoms: Small white spots appear on the body surface and gills of diseased fish. These small white spots are white vesicles formed by the parasitism of the parasite, irritation of the host, and the secretion of large amounts of mucus and proliferation of epidermal cells in the surrounding tissues. In severe cases, the body surface tissues are destroyed. If bacteria invade, it can cause skin inflammation, scale loss, fin membrane rot and splitting, corneal damage, and blindness. The diseased fish ultimately die due to loss of appetite,
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How are adult crabs caught and transported? Detailed explanation of the technical points
The crab catching methods and transport techniques are described below: 1. Flowing-water catching method: this is exactly the season of reproductive migration for river crabs, and the vast majority of river crabs leave their burrows and move about in the pond. Set up a lift net or trap at the outlet of the crab pond, then slowly drain the pond water, and large numbers of river crabs can be caught in the net or trap. 2. Light trapping method: pump out a certain amount of pond water to keep a water depth of about 30 cm; at night, when river crabs come ashore in large numbers, set lamps at the four corners of the pond with a vat buried under each lamp, and the light attracts them
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Detailed Explanation of the Technical Method for Brewing Baijiu from Sweet Potato
Brewing is the process of using starch as a raw material and, through the action of fermenting microorganisms, converting starch and sugar into alcohol. In China, in addition to grains (rice, sorghum), sweet potato is mainly used as a brewing raw material. When sweet potato is used as the raw material for brewing, its starch utilization rate and liquor yield are higher than those of other grains, while the cost of the liquor is low. 1. Process flow: making jiuyao (starter culture) -- raw material treatment -- fermentation -- distillation -- adjustment of alcohol content -- storage. 2. Key points of process operation: ① Making jiuyao: jiuyao can be divided into two types, black and white.
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