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Several foreign methods of dry rice cultivation can be used for reference.
Hole planting method for dry rice cultivation. This new method was invented by the Tice Farm in New Orleans, USA. Specific operation: on moist no-till land, use a small hole-punching seeder (machine) to punch a hole about 3cm in diameter and 13-15cm deep in the soil. While punching the hole, immediately sow 1-2 rice seeds, then cover the hole with soil and fertilizer, and fill the hole with water while keeping the soil around the hole only moist. Under normal circumstances, no water needs to be given within 40 days after sowing, so that the rice roots grow deep and have a strong root system, which can effectively
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How to prevent fish from oxygen deprivation in winter? These practical methods you need to master
In winter, although the feeding activity of fish in ponds decreases, they still need a certain amount of dissolved oxygen to maintain slow breathing. The dissolved oxygen in a pond mainly comes from the photosynthesis of phytoplankton and the direct dissolution of oxygen from the air into the water. However, in the cold winter, once the pond surface freezes over, oxygen from the air cannot dissolve into the fish pond. When heavy snow covers the ice surface, sunlight cannot shine directly into the pond water, and the green plants in the water cannot carry out photosynthesis to produce oxygen. Moreover, in winter most fish gather at the bottom of the water. If the water quality is poor, the fish are weak, and management is poor, it can easily cause fish to suffocate and die from lack of oxygen.
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Drug Treatment Methods for Cecal Hepatitis in Sanhuang Chickens
A certain farmer raised 1000 Sanhuang chickens, and at 35 days of age, 6 suddenly died. On that day, the feed intake of this flock of Sanhuang chickens decreased. After the onset of the disease, slight bloody droppings appeared in the large group. Over the following 10 days, bloody droppings and pale yellow or light green droppings increased, and the number of deaths rose. Apart from emaciation, the chickens were still in fair spirits. Coccidiostat drugs were used continuously for 3 days to treat cecal coccidiosis, but the effect was not obvious. 1. Necropsy: The livers of the dead chickens had characteristic features, being slightly enlarged, with round or irregular, slightly sunken ulcerative lesions on the surface, shaped
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Key Points of Soybean Chemical Control Technology and Detailed Usage Methods
Chemical control cultivation is an emerging technology in agricultural production. When applied to soybean cultivation, chemical control can regulate plant growth and development, help increase flowers and preserve pods, and raise yields. Application of rare earth: rare earth is also called rare earth micro-fertilizer or rare earth nitrate, with the trade name Changle Yizhisu. It is a new type of rare earth element fertilizer first developed in China and a key promoted product; at the soybean seedling stage and initial flowering stage, spray once each with rare earth solutions at concentrations of 0.03%-0.04% and 0.08% respectively, which can increase grain protein content by 5.
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What are the control methods for the soybean yellow-bellied tiger moth?
The larvae of the yellow-bellied tiger moth, called caterpillars or leaf caterpillars, are a major seedling-stage pest of soybeans. At the same time, this pest can also damage corn, foxtail millet, sunflowers, vegetables, weeds and fruit trees. 1. Morphological characteristics: The adult yellow-bellied tiger moth is white, with many black spots scattered on the forewings. The abdomen and back are both yellow, with one black spot in the center of each segment and two black spots on each side; the legs have black stripes, and the femora are yellow. The eggs are hemispherical, creamy white when first laid, later turning grayish yellow; the larvae are earth-yellow on the back and ventral surface
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How to Plant Spring Potatoes? Planting Methods and Key Technical Points
There are three methods for early-maturing spring potato cultivation: double-film covering with plastic film plus small arched shed, thick-film small arched shed covering, and flat plastic film mulching. Potatoes cultivated using these methods can be brought to market 10 to 20 days earlier than potatoes grown with conventional open-field cultivation. Selecting good varieties: Regardless of which covering method is used, the original seed of Dongnong 303 or Kexin No. 4 introduced from Northeast China must be used. Self-saved seed must not be used, and local seed that has been self-saved for many years, with aging varieties and seriously degraded seed characteristics, must certainly not be used. About 150 kg of seed is needed per mu. Large potatoes can be cut open for planting, with each seed
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There are techniques for medicating poultry, and the correct methods must be mastered
1. When mixing drugs with water or feed, the amount of medicated water or feed should be properly controlled so that it can be consumed within 2 hours. When mixing medication, the drug and feed should be evenly blended; when using injectable drugs, the volume of liquid per injection: young poultry no more than 0.2 ml, growing poultry no more than 0.5 ml, and adult poultry no more than 1.5 ml. 2. When using antibiotic drugs, the first dose should be doubled. During treatment, generally 3-4 drugs with different antibacterial spectra can be selected to broaden the bactericidal range. For preventive medication, only one drug is needed.
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Topdressing Methods and Technical Key Points for Cotton During the Flowering and Boll Stage
Cotton fields are currently entering the flowering stage one after another. After this, cotton will enter the flower and boll stage lasting more than 50 days, which is the peak period of fertilizer demand for cotton. During the more than 50 days of the flower and boll stage, cotton continuously flowers and sets bolls, and its demand for nutrients is continuous and uninterrupted. Therefore, except for particularly fertile soil, topdressing is necessary to supplement nutrients. Topdressing during the flower and boll stage is an important task in the management of cotton during the flower and boll stage. 1. For plots short of fertilizer, increase the amount of topdressing. In areas where the per capita cotton planting area is relatively large, some villages still maintain a state of low input and low output
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Identification and Control Methods of Slime Mold Diseases in Oyster Mushrooms
Symptoms The slime mold colonies harming oyster mushrooms are white, and during the vegetative growth stage they mostly spread outward in a feather-like pattern, generally difficult to distinguish from oyster mushroom mycelium. In the middle and late stages of oyster mushroom growth, the slime mold develops rapidly. When the mushroom bed has high humidity, the slime mold spreads from the bottom layer of the substrate to the surface layer, beginning to appear on the surface of the mushroom bed as bright orange-yellow gelatinous filaments, which then rapidly produce powdery gelatinous masses, namely the slime mold spores entering the reproductive stage. The gelatinous masses spread rapidly from the stipe to the cap of the oyster mushroom, gradually enveloping the entire fruiting body and causing the fruiting bodies
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Identification methods and management key points for vicious habits in does
Every year during the fawning and nursing period of does, in some deer farms, due to inadequate management techniques, incidents occur from time to time in which vicious-habit does harm newborn fawns and feeding management personnel. Some newborn fawns are clawed to death alive, and some feeders or technicians are clawed and injured. According to investigations, there was once 1 sika deer vicious-habit doe that, in the first few days after giving birth, clawed 5 newborn fawns to death and clawed and injured 2 young and strong feeding management personnel. The harm caused by vicious-habit does has led to a significant increase in fawn mortality and should be given full attention. 1 Identification
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