1. Paddy field cultivation is best within 1334 square meters of each paddy rice field, and the water source is sufficient. The key to farming is the construction of anti-floating facilities. A single brick wall of more than 1 meter high can be built around the rice field, and the part above the water level line should reach about 0.5 meter, and the joint is cemented. This anti-escape effect is good, but the cost is high and the dismantling is inconvenient. It is also possible to widen the field to 1 to 1.5 meters, and use linoleum and film paper to pave the soil at the junction of the wall and the bottom of the field, and press the soil upwards, which also has a good anti-escape effect. In addition, each paddy field opens a trench along the field, and opens a compartment in the center of the field. The width of the trench is 50 cm. The furrow is connected to the trench, and the depth is 25 cm to 30 cm, so that each paddy field is divided into four. Small pieces, pay attention to the drainage port to block with a wire mesh or plastic mesh to prevent water from escaping.
2. In the case of stocking and cultivating rice fields, the stocks should be reared in time after stocking. When stocking, choose individuals who are disease-free and harmless, and the specifications are basically the same, so as not to eat each other. Generally, 13,000 to 15,000 scorpions are stocked per acre of rice fields, and the tail weight is 10 to 20 grams.
3. Feeding the feed The main feed for feeding the yellow meal is small fish, shrimp, oysters, clams, clam meat, fly maggots, silkworm cocoons, chopped livestock and viscera and scraps, and appropriate bran, dried cake, and bean dregs. Wait. In these feeds, it is especially effective to feed cockroaches. Huang Qi has the habit of licking and eating at night. It is best to take the time of feeding from 17:00 to 18:00, the dosage should be flexible, the feeding should be less affected, and the feeding will be too much, resulting in a waste.é³ The overall weight is 2.3%. On cloudy days, sultry, thunderstorms, or water temperature above 35 ° C, below 10 ° C should pay attention to reduce the amount of feeding. The water temperature is optimally grown at 10 °C ~ 35 °C, and it is necessary to increase the feeding amount in time. The bait should be set up with a feeding platform, and the feeding platform can float at a fixed position in the ditch to allow the cockroach to enter the station for feeding. The bait table can be made of wooden frame and aluminum wire mesh or nylon mesh. In order to solve the shortage of animal feed, a black light of 3 watts to 8 watts can be hung on the ditch, 5 cm away from the water surface, the worms fall into the water, the food can be swallowed, and the flesh, carrion, stinky fish, etc. can also be used. In the wire basket, hang on the ditch, lure the flies to lay eggs and smash them into the ditch for swallowing.
4. Daily management is mainly based on the needs of rice growth and taking into account the living habits of Astragalus membranaceus. The water depth of the early paddy fields is maintained at 6 cm to 10 cm, and the rice field (slightly drying the field) is taken once before the rice jointing. From the beginning of the jointing booting stage to the milky maturity period, the water depth is kept at 6 cm, and the subsequent irrigation and the field are alternated. The depth of the ditch and wedge ditch during the exposure period is about 15 cm. It is necessary to change the new water frequently, carefully check the eating condition of the scutellaria, and observe the growth and development of the yellow meal. If rice needs to be fertilized and sprinkled with pesticides, it is necessary to first consider the yellow meal to be induced into the safe waters of the ditch. In addition, it is necessary to check the anti-escape facilities at the entrance and exit of the field and the drainage outlets frequently to avoid the escape of the yellow meal.
5. Disease prevention and treatment: (1) bacterial skin diseases. May to September is the epidemic season. There are erythema of different sizes on the surface of the diseased body. The spots are congestive and inflamed, and the flow is weak. The head often stretches out the water. When the condition is serious, the epidermis shows a pointy ulcer and extends to the muscle and dies. . Control methods: 1 raw lime clearing the field, eliminate the source of the disease; 2 keep the water quality good, prevent pollution; 3 every 50 kilograms of jaundice with sulfathionazole 0.5 grams mixed with bait feed, once a day, 5 days to 7 days for a course of treatment. (2) Water mold. During the stocking period, due to inadvertent operation, the body surface was injured and infected, and the naked eye was found in the wound. Control method: 1 Immediately add new water. 2 Sprinkle 2 grams of whole water per 1 cubic meter of baking soda, and sprinkle with 0.2ppm malachite green solution until the disease is cured.
6. Fishing and listing of Astragalus membranaceus can be harvested when it weighs more than 100 grams. In the autumn, you can flip the soil from the corner of the rice field and dig the yellow scorpion. Regardless of whether it is net fishing or digging, try not to let Huang Qi be injured, so as not to reduce the value of the goods.
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