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Two Key Techniques for High and Stable Yields of Yellow Catfish: Disease Control and Fishing Technology
In artificial farming of yellow catfish, the key technical measures for high and stable yields should focus on two things - disease control and daily harvesting of yellow catfish. Yellow catfish, also known as yellow catfish, yellow sprout head, yellow ding fish, yellow fish, yellow drum fish, river catfish, ga ya zi, river yellow catfish, Wallace's yellow catfish, mo ding, ounce fish, yellow horn, ga fish, yellow spine fish, yellow ox withered, grass withered, yellow cheek fish, ounce male fish and yellow bone fish, etc., is a small freshwater economic fish and a famous, special and excellent variety. To farm yellow catfish well, the key work lies in doing a good job of disease and pest control for yellow catfish,
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How to grow Indian lettuce for high yields? Cultivation techniques for high-quality fish forage grass
Indian lettuce is an annual or perennial herbaceous plant in the Asteraceae family, genus Lactuca. It is rich in nutrients, and its crude protein content is 35%-40% higher than that of Sudan grass, which enjoys the title of "king of forage grasses." The tender leaves of Indian lettuce contain a lot of carbohydrates, have good palatability, and a utilization rate of nearly 100%, making it a superior green feed for fish. Indian lettuce is the best "green forage" for "filling the gap between seasons and bridging to the peak season" between the off-season of ryegrass and the coming peak season of Sudan grass. It can serve both as the "staple food" for herbivorous fish and as a "delicacy" for cultivating fish species such as black carp, grass carp, and bream. Cultivation characteristics
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How to Prevent and Treat Porcine Unknown High Fever Syndrome? A Detailed Guide to Practical Methods
"Porcine unknown high fever," also known as porcine high fever syndrome, is a disease with both high morbidity and high mortality, occurring mainly in growing-finishing pigs and some sows. The main clinical signs in affected pigs are elevated body temperature, listlessness, poor appetite or complete loss of appetite, difficulty breathing and panting; some pigs also show reddened to purplish skin, and a few have bleeding points at the hair follicles. The pathogens are mainly mixed infections and secondary infections involving multiple viruses, bacteria and parasites, including classical swine fever virus (HCV), porcine reproductive and respiratory syndrome virus (PRRSV), swine influenza virus (SI
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Cotton Harvesting Techniques: Careful Picking Brings Higher Returns
I. Cotton should be harvested at the right time. Cotton harvesting is the last step in cotton production and the key to ensuring a high-yield, high-efficiency harvest. Because cotton is an indeterminate inflorescence crop, it successively forms buds, flowers, bolls and maturity, and requires multiple harvests. Therefore, after the cotton boll matures, the third stage of fiber development still has to be completed during the cracking process, namely the fiber dehydration and convolution period, about 7 days or so. The moisture content of the cotton boll shell drops from 80% to 30%, and the moisture content of the cotton pulp drops from 57% to 18%. The fiber further dehydrates and matures, forming convolutions, and at the same time, due to cellulose deposition, fiber strength continues to increase.
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Why must organic fertilizer be applied continuously for sustained high cotton yields?
Although cotton is a relatively tolerant crop when it comes to poor soil, achieving high and stable yields requires cotton fields to have fairly high fertility. According to measurements by the Cotton Research Institute of the Chinese Academy of Agricultural Sciences, most cotton fields nationwide currently have insufficient fertility, and the levels of various nutrients vary widely and are very unbalanced. This is especially true in the cotton region of the Yellow River basin, where organic matter content is low, nitrogen supply is insufficient, available potassium content is declining rapidly, and the trace elements zinc and boron are also in the deficient or potentially deficient range. These have become important factors restricting the sustained and stable increase of cotton yields. Cotton is a deep-rooted crop, and its growth
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How to increase the yield of spring-planted shiitake mushrooms? Master these tips for high yields
Raise the temperature of the mushroom bed to create conditions for mushroom growth. Since the mushroom yard is still cold in early spring, natural air temperature can be used together with artificial regulation. The method is: cover the film tightly to increase the ground temperature, and at the same time choose sunny days to spread the shading materials on the shed surface thinly, letting sunlight penetrate into the mushroom yard, increasing the heat source and raising the mushroom bed temperature; at night, cover the film tightly to protect against the cold. The large day-night temperature difference in early spring can promote the occurrence of mushroom buds. Pat the mushroom logs to promote the recovery of mycelial growth. Because the climate is cold in early spring, the mycelium is mostly in a dormant state, producing no mushrooms or very few mushrooms. Generally, patting can be used
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Red-headed Snake-necked Turtle Species Introduction and Care Highlights
Chinese name: Red-headed Snake-necked Turtle. Geographic distribution: Venezuela, Colombia, Ecuador, Peru, Bolivia, Guyana and Brazil. Reproduction: oviparous. Females can be distinguished by the tail (of course, a long and thick tail indicates a male). Mating can occur year-round, and a female can lay 4 to 6 eggs at a time, sometimes far from water. Habits: side-necked turtles are basically aquatic, but are often found walking on land after rain. The three I keep spend about as much time on land as in water
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A Detailed Guide to Deer Selection Methods: How to Choose High-Quality Breeding Deer
Deer First, carefully examine the overall standard of the deer farm. When you get to the farm, first look at the number of animals kept; if it is a privately run farm with a low number of animals, inbreeding may be common. Large farms can avoid inbreeding. Second, you must choose a regular breeding farm with breeding qualifications to buy from. Selecting breeding deer is very important. First, look at the antlers. It is best to buy breeding stags during the antler growing season, when you can see at a glance whether the antlers are large or small, good or bad. If the antlers have already been sawed off, then you have to look at the appearance. The head must be large,
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Detailed Explanation of the Garlic-Ginger Intercropping Model: How to Achieve High Yield and High Efficiency
This model is suitable for irrigated land in autumn-sown garlic areas. Yield per mu: ginger 2500-3000 kg, garlic scapes 400-500 kg, garlic bulbs 800-1000 kg. Planting arrangement: make beds running east-west, bed width 1 m, plant 4 rows of garlic, intercropped with 2 rows of ginger. Garlic is planted in wide and narrow rows, with wide row spacing of 30 cm, narrow row spacing of 20 cm, and plant spacing of 6-8 cm, planting 33,000-35,000 plants per mu. The 2 rows of ginger are intercropped in the wide rows of the garlic, with row spacing of 50 cm, plant spacing of 12-15 cm
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The new high-quality conventional rice variety Yexianzhan No. 8 was bred by the Huizhou Municipal Institute of Agricultural Sciences in Guangdong.
Yexianzhan No. 8 was bred by the Huizhou Municipal Institute of Agricultural Sciences in Guangdong through the cross of Guiyizhan No. 2 / Texianzhan 13 // IR24. In 2002 and 2003, it took part in the late-season regional trial of the high-quality group in Guangdong Province, with average yields of 405.91 kg and 454.47 kg per mu, increasing yield by 10.64% and 9.25% respectively compared with the control variety Jingxian 89, and both yield increases were extremely significant. In 2003, it took part in the provincial production trial in the late season with an average yield of 446.7 kg per mu, an increase of 7.48% over the control. The rice quality was tested and identified by the Food
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