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What are the effective control methods for water hyacinth?
Water hyacinth can be controlled by spraying Gramoxone (paraquat), glyphosate, bensulfuron-methyl, or oxadiazon, or by manual salvage. Generally, spraying chemicals pollutes the water quality, so in daily life the manual salvage method is mostly used; the specific method is, when the water hyacinth begins to reproduce
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Detailed Explanation of Summer Black Grape Cultivation Techniques and Management Methods
First is selection: the north mostly adopts trellis training, while the south mostly adopts single-trunk V-shape or overhead trellis; second is cluster trimming and berry thinning: each fruiting cane on average retains only 1 cluster; third is enlargement treatment, that is, 15 days after flower drop, use 45-50mg/kg gibberellin solution, dip or spray the clusters, and repeat once after 12-
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Detailed Explanation of Key Points for Grape Y-Shaped Trellis Planting Technology
Adopt the wide and narrow row spacing interval method for planting and vineyard establishment, with a wide row spacing of 2.7 m, a narrow row spacing of 0.2 m, and a plant spacing of 1 m. The seedlings are planted parallel to the row direction, and about 500 grapevines are planted per 667 sq m. Do a good job in vineyard establishment preparation and the promotion management of young trees. Y-shaped trellis cultivation method and structure:
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A detailed guide to growing mallow: from sowing to management in one article
Timely sowing: use broadcast sowing or hole sowing; the exact time depends on local conditions. || Field management: after sowing, water mallow promptly with dilute manure; topdress during the peak growing season. || Harvesting and seed saving: spring-sown mallow in North China is harvested about two months after sowing, and after flowering you can wait to save seed.
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What are the usage and dosage of Bacillus thuringiensis?
Bacillus thuringiensis can be applied by two methods: spraying and broadcasting. Spraying involves starting application at the early stage of pest occurrence or the peak hatching period of eggs; generally, when used on vegetables, beans and sweet potato, 600-800 ml per mu is applied. Broadcasting is mainly used to control corn borer, applied at the
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How Are Wood Ear Mushrooms Grown? A Detailed Guide to Cultivation Methods
Wood ear mushrooms are generally grown using the plastic bag ground-cultivation method, and the planting time varies from region to region. First, prepare the raw materials, which are generally based on sawdust and straw. Then put the raw materials into plastic bags, and go through sterilization, inoculation and mycelium incubation. Then, place the bagged raw materials in the field
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Detailed Explanation of Key Techniques for Mixed Culture of Snails and Earthworms
Using a multi-tiered frame with multi-level flat netting for mixed culture of snails and earthworms can achieve the goals of low energy consumption, small space, simple management, and rapid high yield. I. Variety Selection For snails, the White Jade snail can generally be used, but it is best to use the more cold-tolerant French Light Great snail, so that it can grow and reproduce in sync with earthworms throughout the four seasons. For earthworms, choose species that grow and develop quickly, have strong reproductive capacity, broad adaptability, long lifespan, and are easy to domesticate and manage. At present, the most ideal varieties are Beixing No. 2 and Daping No. 2.</p><p>II. Culture Method Idle houses or plastic greenhouses can be used for culture. Snails are cultured using multi-tiered frames with multi-level flat netting, while earthworms are cultured in boxes. The multi-tiered frame is 3 m long, 1.2 m wide, and 3 m high, with 11 tiers of bed frames arranged from top to bottom, each tier 20 cm apart, and the lowest tier 60 cm above the ground. Each tier is fixed with nylon netting stretched tight to form a supporting net bed. The mesh of the top 1-2 net beds is 1 mesh or larger, so that egg-laying breeder snails cannot pass through the mesh, while medium and young snails can fall through the mesh. The mesh of the 3rd-4th net beds is 2 mesh, the 5th-6th net beds is 3 mesh, the 7th-8th net beds is 4 mesh, the 9th-10th net beds is 6 mesh, and the bottom net bed is 8 mesh. On one side of the topmost net bed, make an egg-laying and hatching bed 30 cm wide and 25 cm high, and place hatching substrate about 20 cm thick into the egg-laying and hatching bed. The substrate is made by mixing sawdust, rice straw (cut into 2 cm lengths), and garden soil at a ratio of 1:1:1 and fermenting the mixture. Apply lime slurry around each tier of the frame to prevent snails from crawling off the net beds.</p><p>The bottom layer of the multi-tiered frame is enclosed with wooden boards to form a box 30 cm high. Place 10 cm thick garden soil into the bottom of the box, then add fermented material of rotted cow dung or pig dung and rice straw, and mix in 20% well-fermented sawdust as feed for the earthworms. The moisture content of the feed should be kept above 60%.</p><p>III. Stocking and Culture When the temperature is above 15°C, stocking and culture can begin. The top tier of the frame is the breeder snail tier, and outbred parent-line breeder snails can be stocked at a density of 200 per sq m. Breeder earthworms can be stocked at 2.5 kg per sq m (about 5,000 individuals).</p><p>Snails have a very broad diet. Various vegetables, aquatic plants, crop stems and leaves, and even the leaves of broadleaf trees can all be used for feeding. Earthworms have an even more omnivorous diet; almost all plant residues, humus, decaying animals, and household garbage are their food. When feeding, wash the green feed and place it directly on the 1st-2nd net beds. In this way, the small fragments left after the breeder snails eat will fall into the net beds below and become feed for the medium and young snails, while the feces and food residues produced by the snails on each net bed fall onto the earthworm bed and become food for the earthworms. According to estimates: 5 kg of large snails (about 100 individuals) excrete about 0.3 kg of feces per day, and together with the snails' food residues, this can feed more than 0.5 kg of earthworms. When the young snails bred by the breeder snails fall downward and become distributed among the net beds on each tier, the snails' feces and food residues are basically enough to feed the earthworms in the earthworm bed. In this way, not only is the tedious work of feeding and cleaning feces reduced, but the feed utilization rate is also greatly improved.</p><p>IV. Key Management Points With reasonable regulation of the environmental ecology, snails and earthworms have almost no threat of disease.</p><p>1. Temperature The temperature should be kept above 20°C. If the temperature reaches 30°C, attention should be paid to taking cooling measures. If the temperature is below 15°C, heating should be carried out.</p><p>2. Light Snails and earthworms are both shade-loving animals and have the habit of hiding by day and coming out at night. During culture, pay attention to the amount of light. The illuminance of one 3-watt bulb per 10 sq m in a dark room is suitable.</p><p>3. Humidity Snails and earthworms both like humid environments. The indoor air humidity should be kept at 60%-70%. The humidity of the snail hatching substrate should be kept at 30%-40%, while the humidity of the earthworm feed should be kept at 60%-66%. Snail feed should be soaked and then fed.</p><p>4. Air High-density culture of snails and earthworms will produce large amounts of harmful gases. Therefore, attention should be paid to frequent ventilation to maintain sufficient oxygen. At the same time, during their life activities, earthworms will continuously deposit feces on the surface of the feed, so the earthworm feces should be cleaned frequently to facilitate air circulation.</p><p>5. Grading and Harvesting</p><p>Grading of snails Snails have the habit of the large eating the small, so large, medium, and small snails of different ages in months cannot be mixed. Net beds with different mesh sizes are used for culture so that the snails automatically screen and grade themselves, that is, snails of different sizes will retract their heads when frightened (such as by strong light or vibration) and tumble down to the lower tier. When snails of each grade grow to the age in months of the next higher grade, manual selection is needed. At the same time, the adult snails above can all be harvested.</p><p>Harvesting of earthworms When most earthworms in the bed have reached a body weight of 400-500 mg, at which point the density per sq m has reached 15,000-20,000 individuals, most of the adult earthworms can be harvested.</p>
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Tips for Raising Green-Shell Laying Hens to Increase Egg Production
1. Use scientific lighting. During the first month of laying, change the daily cycle to 28 hours, alternating 12 hours of light and 16 hours of darkness; average egg weight can increase by 10%, and the eggshells are firm, with very few small eggs. 2. Clip the combs of chicks at the right time. After chicks hatch
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How to Treat Pig Farm Wastewater? A Detailed Explanation of Common Methods and Technical Points
Summary Usually, the sedimentation method is used to treat pig farm wastewater, so pig farms need to be equipped with sedimentation tanks. When the wastewater is discharged into the sedimentation tank, it undergoes oxidative decomposition through a series of procedures. The sewage can also be self-purified, which can to a certain extent
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How are maggots farmed? Generally, cage rearing is used without polluting the environment
Abstract Construction of the farming site: use an old house converted into a seed fly room, with an area of 20-40cm being suitable, install escape-prevention facilities, place rearing racks inside the seed fly room, make fly cages from nylon gauze, fix them on the rearing racks, build a windproof and waterproof maggot-breeding greenhouse, and build rectangular water
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