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What technical points must be mastered for polyculture of fish, shrimp, ricefield eel, loach, crab, and crayfish?
1. Pond selection. The pond is nearly square, with surrounding ditches 8 m wide and 0.6 m-0.8 m deep, the beach surface can be raised with water to 1.2 m, the pond bottom is sandy soil, the water source and water quality are good, and water inlet and drainage facilities are complete. On the inner side of the pond, fine-mesh polyethylene netting is buried in the soil to prevent ricefield eels, loaches, red swamp crayfish, crabs, etc. from burrowing. Asbestos tiles are used as an escape-prevention wall. The pond must be strictly disinfected with quicklime and other drugs, sufficient base fertilizer applied, natural feed cultivated, and aquatic plants such as tarragon and tape grass planted. Around Qingming, a large amount of live river snails
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Autumn management of fingerlings takes know-how: these key technical points must be mastered
1. Clear the pond in good time. After 2 to 3 months of rearing fingerlings, pond water quality generally has deteriorated, natural food organisms have decreased, and harmful gases such as hydrogen sulfide and pathogenic bacteria have increased. After the beginning of autumn, the fingerlings should be transferred to a pond that has been cleared and disinfected for rearing. Where there are difficulties in water supply and pond rotation, all the fingerlings can be transferred out for temporary holding, then the original pond should be disinfected with quicklime at 75 kg to 100 kg per 667 sq m, and water quality should be fertilized by conventional methods; after the efficacy of the lime has dissipated, transfer the fingerlings back to ensure purification of their living environment.
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How to skillfully manage late-season wheat? These technical points must be mastered
Ensure sufficient soil moisture and base fertilizer. For late-season wheat, never rush to sow by seizing moisture; on the premise of ensuring adequate soil moisture, apply heavy base fertilizer, and where conditions permit, apply 3-5 cubic meters of high-quality farmyard manure per mu; at the same time, according to yield requirements, mix 2/3 of the total nitrogen, phosphorus and potassium chemical fertilizers invested throughout the growth period with farmyard manure, spread them on the surface and plow them into the soil. Choose the right variety and increase the seeding rate. Late-season wheat is suitable for semi-winter varieties, which can be selected according to local conditions. At the same time, determine the actual number of days of late sowing according to local autumn temperatures. Generally, it is advisable to increase the seeding rate by 0.5 kg for each day of delayed sowing, and never
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Tips for Harvesting Garlic Scapes: Mastering the Method Is Key
1. Timing of harvest. Garlic scapes must be harvested at the right time. Harvesting too early results in low scape yields because the scape has not fully emerged, and after harvest an "excess scape" section will still push out. Harvesting too late not only affects the fresh, tender quality of the scapes because they have become "over-mature," but also reduces garlic bulb yields. The most suitable harvest time is: when the scape has emerged and the "scape tip" has curved nearly a full circle. 2. Choose overcast days or after the sun slants westward on sunny days for harvesting. Harvesting garlic scapes easily leaves "wounds" on the stems and leaves of the garlic. If harvested under strong sunlight on a sunny day, the large transpiration rate and
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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 Grow Dendrobium Orchids? Mastering These Cultivation Tips Is All You Need
Dendrobium orchids, along with Cattleya, Phalaenopsis and Vanda, are ranked as the four major tropical ornamental orchid groups, and they are one of the largest genera in the orchid family. According to differences in their biological characteristics and ecological requirements, they can be divided into two major categories: deciduous dendrobiums and evergreen dendrobiums. There are many Dendrobium varieties, and those commonly grown for ornamental purposes include Dendrobium densiflorum, Dendrobium thyrsiflorum, Dendrobium phalaenopsis, Dendrobium nobile, Dendrobium primulinum, Dendrobium loddigesii, Dendrobium fragrans and others. Dendrobium flowers are beautiful in shape and form, making them important cut flower and potted plant varieties. To grow Dendrobium orchids well,
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How to Choose Land for Codonopsis Planting? These Methods Must Be Mastered
Codonopsis is a deep-rooted plant, and mature plants prefer light, so it is best to choose deep, fertile, sunny sandy loam for cultivation. Low-lying, waterlogged, and heavy clay soil is not suitable for cultivation; water accumulation in the soil easily causes root rot, poor aboveground plant growth, and low yield with poor quality. Slightly acidic to neutral soil with a pH of 6.5-7 is preferable. Legume and grass family crops are best as the previous crop; vegetable crops as the previous crop are prone to disease and should not be chosen. Continuous cropping is prohibited, and generally 3-4 years should pass before replanting.
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How to cultivate and manage redbud (Cercis chinensis)? Mastering these key points is crucial
Key points for cultivating and managing redbud
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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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How to fatten up thin cattle? These fattening techniques must be mastered
1. Selecting thin cattle. Not just any thin cattle can be purchased for fattening. Only thin cattle that have become thin due to poor feeding management, heavy work, and other such reasons can be rapidly fattened through careful feeding and management. Great care must be taken when selecting thin cattle, and one must absolutely avoid purchasing thin cattle that are too old, extremely weak in constitution, or suffering from chronic digestive tract diseases or infectious diseases. 2. Disease prevention and deworming. Newly purchased thin cattle must undergo a comprehensive examination, and only after being vaccinated against foot-and-mouth disease, brucellosis, and Clostridium welchii disease can they be admitted to the barn and mixed with other cattle. Before formally starting
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