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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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What are the control methods for underground pests of licorice?
The main underground pests at the seedling emergence stage of licorice are mole crickets and the Oriental beetle (He's Oriental chelifer), while at the mature plant stage the main ones are click beetles, scarab beetles, cutworms and darkling beetles, which cause serious damage. After wild licorice is damaged by underground pests, because the wild root head is deep below the soil surface, it is mainly the underground stem that is eaten and damaged, and after damage the adventitious buds can grow rapidly and regenerate, so the whole plant does not die. In contrast, what is mainly eaten and damaged in cultivated licorice is the root, and the plants are young and small with weak recovery ability; accompanied by rot infection, this often leads to the whole plant rotting and dying. In
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What are the key points of mushroom preservation technology? Understand in one article
The main factors affecting mushroom preservation are as follows: Temperature: the higher the temperature, the worse the mushroom preservation. 0-4°C is the suitable temperature for mushroom preservation. Apart from quick freezing, below 0°C easily causes freezing damage. Water quality: when the iron or copper content in water exceeds 2 mg/L, the mushroom color darkens and turns brown, so iron and copper utensils and tools are prohibited. Humidity: 95-100% is required. Below 90%, the color darkens, and the caps easily open and spoil. Gas composition: an important cause of spoilage, which can be inhibited by sterilization and adjusting pH value. Enzyme activity
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How are potato roots distributed? Understand it in one article
The roots of potatoes grown from tubers are fibrous roots, with no taproot; potatoes grown from seed have a primary root and lateral roots, and here we mainly discuss the fibrous root system. Potatoes are a shallow-rooted crop, with most of the root system distributed within 40 cm below the soil surface, generally not exceeding 70 cm, and in sandy soil the roots can reach more than 1 m deep. The root system of early-maturing varieties is generally less developed than that of late-maturing varieties, and early-maturing varieties have a shallower root distribution, while late-maturing varieties have a wide and deep distribution.
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Construction Method for a Multi-Layer Three-Dimensional Underground Snake House
The multi-layer three-dimensional underground snake house can be used year-round. Ordinarily it serves as a habitat for snakes, and in winter it can also become an ideal hibernation site for snakes. When this snake house is used in the provinces (regions) south of the Yangtze River, its underground coolness is especially evident in the hotter summer weather. It can also be built in a semi-underground, semi-above-ground mode according to the depth of the water table in different regions, to solve the problem in the south, where water resources are abundant and the water table is shallow, that deep digging easily reaches water. In the north, where winter is especially cold, in this season it is only necessary to increase the thickness of the soil layer on top of the snake house to ensure it is below the local frost
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Why do female swordtail fish undergo sex reversal?
The so-called "sex reversal" of female fish refers to the gradual masculinization of some female fish that have given birth to fry: the body becomes slender, a sword-shaped protrusion grows below the caudal fin, the anal fin transforms into a rod-shaped gonopodium, and they begin to chase female fish, mate with them and fertilize them, and reproduce offspring. But it is only female fish turning into male fish; male-to-female reversal has not been observed. Regarding this issue, some people have recently raised different opinions: they believe that swordtail fish cannot undergo sex reversal, and their natural male-to-female ratio is always 1:2 to 1:1.5. Although the reproductive organs of swordtail fry begin
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What should you pay attention to when eating fish head? These points need to be understood
Professor Wang Cunxin, a fish research expert at the Institute of Oceanology, Chinese Academy of Sciences, introduced that China has four major domesticated fish, namely black carp, grass carp, silver carp and bighead carp. Silver carp is also called silver carp or white silver carp. Among bighead carp, spotted bighead carp is more common, and the fish heads we usually eat in restaurants are mainly white silver carp and spotted bighead carp. The reason these two fish are used for fish head dishes is, first, because they grow quickly and can be artificially farmed; second, because black carp and grass carp mainly eat grass, while silver carp and bighead carp mainly eat plankton, so they naturally have more meat than the former two. The head of white silver carp, especially spotted bighead carp
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What is Fragrant Crisp Ring Shrimp? An article to help you understand
Cuisine: Guangdong cuisine Main ingredient: shrimp meat Supporting ingredient: cucumber Preparation method: Marinate the shrimp meat to absorb the flavor, cut the cucumber into rings, thread the shrimp meat through them, place in a warm oil wok, and stir-fry briefly with seasoning. Flavor characteristics: crisp and tender texture, distinctive and exquisite plating, and a well-balanced nutritional combination.
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Cultivation Methods for Gastrodia elata Under Different Temperature Conditions
The conditions required by Gastrodia elata and Armillaria mellea are mainly temperature. It can grow and develop normally under conditions of 2-28°C. How to control this condition is the most important factor in whether Gastrodia elata production succeeds or fails. Temperatures across the country can be broadly divided into three major types: (1) Heilongjiang, Jilin, Liaoning, Inner Mongolia, Qinghai, **. In these areas, it must be ensured that the seedlings do not freeze in winter, and in summer there is no need to consider the effect of high temperatures on the growth of Gastrodia elata. The best plan is: plant Gastrodia elata indoors, with slight heating in winter, so that the indoor space does not freeze.
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Understanding and Correcting Common Clinical Medication Errors in Canine Diseases
Because veterinarians may have an incomplete understanding of the animal being treated, the condition, and how drugs work, various errors can occur during drug use. Although such errors can lead to treatment failure or even toxic reactions, they can also provide a basis for correction when establishing a correct diagnosis and implementing a drug treatment plan for future diseases. Therefore, recognizing and correcting clinical medication errors is a positive practical activity in veterinary clinical practice. 1 Common types of medication errors in clinical practice
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