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The scientific name of Petunia F1 is Petunia hybrida
Characteristics: Solanaceae family, Petunia genus. Perennial herb, often grown as an annual or biennial. It prefers warmth, is not cold-tolerant, and dislikes waterlogging. The optimum sowing temperature is 20-25°C. Because the seeds are very small, they can be mixed with fine sand when sowing, and may be left uncovered or covered with a thin layer of soil. During sowing, keep the soil moist while avoiding water accumulation in the soil (especially in hot summer). About one week after sowing, germination occurs. When 4-5 true leaves have developed, the seedlings can be pricked out, and when more than 10 true leaves have grown, they can be planted in their final position. Petunia is a long-day flower, and short days inhibit flower buds
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How to raise meat dogs well? Master the key points of scientific breeding technology
The whole dog is a treasure, especially the meat dog, which has relatively high economic value. In recent years, meat dog farmers have been constantly emerging. However, due to a lack of knowledge about feeding management and epidemic prevention and disease control, large numbers of dogs have died, causing heavy losses. According to a survey of 10 meat dog farming households, the mortality rate was above 60% in all cases. In view of this, the author specifically introduces measures for how to raise meat dogs well, for reference only. 1 Feeding environment Dogs are animals that love cleanliness, love basking in the sun in winter, and love bathing in summer. Dogs have a strong ability to adapt to the environment and can withstand relatively hot and relatively cold climates, but the climate must not change too drastically; sudden cold and heat make them prone to illness. Dogs are accustomed to constantly moving, so there should be a relatively spacious place for dogs to exercise. Dogs are quite intelligent and quick to react, so they are easy to tame. There are two ways to raise meat dogs: one is pen rearing, and the other is tethering. We generally use pen rearing. The dog pen should be built on a hillside that is sheltered from the wind, faces the sun, has flat terrain, is dry, and has fresh air. Build a 2 m high wall with red bricks, set up an open shed in the middle of the yard, and use bamboo poles or wooden boards inside the shed to partition it into several small compartments so that the dogs are protected from sun and rain. Dig several pools in the four corners of the yard, spread some weeds in the pools, and let the dogs concentrate in the pools to defecate and urinate. The yard must be cleaned every day to keep it clean. Or use existing houses and make slight modifications, but the environment must be quiet, with sufficient light, air circulation, warm in winter and cool in summer, moisture-proof and well drained, sturdy and safe, and convenient for activity. Pay attention to the sanitary conditions around the dog kennel. It should be far away from unsafe places such as toilets, garbage dumps, sewage pits, livestock and poultry farms, chemical plants, and cold storage, and should also be far from residential areas and schools so as not to disturb residents' lives. Factors such as feed transportation, product @#@136@#@, and epidemic prevention isolation should also be considered.
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How to scientifically restrict-feed young chickens? Master these technical points
Under normal circumstances, young chickens should be given restricted feeding. In restricted feeding, some chicken raisers believe that the less the chickens eat the better, and the poorer the feed quality the better; therefore, they provide young chickens with a single feed, with no regularity, no plan, and no standard, and manage them carelessly. In fact, this practice misunderstands the original meaning of restricted feeding. The purpose of restricted feeding is to control the chicken's weight gain, prevent the chicken from reaching sexual maturity too early (laying too early), maintain the standard laying start time and body weight, slightly inhibit its growth, and prevent the chicken from increasing body
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Toxin that boosts the virulence of Metarhizium anisopliae discovered by scientists
Researchers from the Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, and the Department of Entomology at the University of Maryland in the United States have discovered a neurotoxin that can enhance the virulence of an insecticide, providing important material for the application of this insecticide, as well as for studying the mechanism of action of fungal insecticides and the molecular mechanism of fungus-insect interactions. The results of this study were published in Nature Biotechnol
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Fujian Academy of Agricultural Sciences Successfully Bred High-Quality Early Indica Rice Jingfu 4a
After 5 years of effort, the Fujian Academy of Agricultural Sciences has successfully bred a high-quality early indica rice - Jingfu 4a. Experts believe that this research achievement has reached the advanced level of similar international research. This achievement was successfully cultivated through arduous efforts by Zhou Tianli, a researcher at the Rice and Wheat Research Institute of the Fujian Academy of Agricultural Sciences, and his research group. Using Jingfu 4a to formulate early hybrid combinations can greatly improve the quality of China's early-season hybrid rice. According to relevant experts, for a considerable period of time in China, the high-quality male sterile lines used to formulate early hybrid combinations
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How should you plan a puppy's diet? A scientific feeding guide for young dogs
Before a dog has fully matured, it should continue to be fed on a growth-stage diet. It needs this highly nutritious food to complete its development and consolidate the growth of its muscles, bones and other organs. When it approaches the weight and size of an adult dog, you can gradually switch it to adult dog food. By the time it is 6 months to 2 years old (depending on the breed), it will have fully grown. Before that, it must become accustomed to adult dog food. A puppy feeding chart will tell you when puppies of each breed should start being fed adult dog food. This kind of
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Introduction to Four-Season Management Methods for Snake Farms, Essential for Scientific Snake Keeping
Snakes are ectothermic animals, and their body temperature changes with the rise and fall of the ambient temperature. Good management of a snake farm can ensure normal growth and reproduction of snakes and improve snake yield and quality. 1. Spring management work (February to April) Spring is generally the most suitable time to introduce snakes for breeding, as there is no need to worry about the weather being too cold or too hot during transport, and the farm soon enters the egg-laying period. Before introducing snakes into the snake farm, the area should be cleaned in advance, and cleaning and disinfection work should be done well. Snakes that have just emerged from hibernation basically do not eat for the first 2~3 weeks, and only begin to
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A detailed guide to goji berry seedling cultivation: teaching you to scientifically grow goji berry seedlings
1. Site selection and land preparation: Choose sandy loam soil that is fertile and easy to drain and irrigate for the seedling field. Before raising seedlings, plow the soil 25-30 cm deep, apply sufficient base fertilizer, and make beds 1.0-1.5 cm wide, then wait for sowing. 2. Seedling raising and transplanting: Goji berries can be propagated by seed, cuttings, division, layering, and other methods. In field production, seed and cutting propagation are the main methods. 1. Seed propagation: before sowing, soak dried goji berries in water for 1-2 days, rub off the fruit skin and flesh, and rinse the seeds out in clean water. After removing the seeds, dry them, then mix them evenly with 3 parts fine sand
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Biotech pigs capable of producing a cerebral thrombosis treatment drug have been successfully bred by South Korean scientists
South Korean scientists have successfully bred "biopigs" that produce a cerebral thrombosis (cerebral hemorrhage) treatment drug through their urine. The South Korean Rural Development Administration recently stated: "By injecting the genetic gene for treating cerebral thrombosis (TPA) into pig fertilized eggs, we successfully bred 4 pigs that can excrete cerebral thrombosis treatment substances through their milk and urine." South Korea has become the world's second country after the United States to breed, through genetic modification, animals capable of producing cerebral thrombosis treatment substances. The United States, in 1997, through genetic modification technology,
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Scientific Management Methods and Key Care Points for Azaleas
Azaleas prefer scattered light and a cool, humid climate, and fear scorching sun exposure. Therefore, suitable conditions of light, temperature and humidity should be adjusted for scientific management. At the same time, special attention should be paid to the acidification treatment of soil and water quality. After the beginning of autumn, once the nighttime temperature drops below ten degrees Celsius, move them indoors to a sunny spot. After the beginning of winter, move them to a cooler shady place without light exposure to let them go dormant. The suitable temperature at this time is around four degrees, and there is no need to water as long as the soil is not dry. In early spring in February, move them to a spot with scattered light at a room temperature of around nine degrees. After
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