Rice field raising green shrimp technology and methods
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1. Choose a good field and open a paddy field where the shrimp ditch cultured green shrimp requires fresh water and a stable water level. For this purpose, it is necessary to choose a land that is close to the water source, is convenient to enter and drain, and has a good soil quality. After turning over and leveling, it is possible to excavate a shrimp ditch 2 meters wide and 1 meter deep at the end of the field or in the middle of the field and in the middle of the field. Narita glyphs are 1 meter wide and 0.8 meters deep. Build into the drainage system, fill the water, and prevent the wild fish from mixing in.
2. Timely planting and raising the survival rate The young larvae are started one week after the planting, and they are usually stocked with artificially cultivated juveniles of the year. The specifications are 2000-5000/kg, and 10,000-1.5 million can be placed per acre. tail. Choose stocking in the rainy or sunny days in the morning, and put it in the sub-points so that there is a distribution of juveniles in the entire water area, so as to avoid excessive concentration of juvenile shrimps due to lack of oxygen. When stocking, be quick to improve the survival rate of juvenile shrimp stocking.
3. Scientific feeding, strengthen the management of juvenile rearing, immediately start feeding, generally can be used bran, bean cake, or fish (shrimp) feed with pellets, but also should be fed some snails, shellfish, fish and other animals Sex food. Feed 2 times a day, mainly feeding in the evening, the daily feeding amount can be controlled by 2%-4% of the body weight of the shrimp, according to the season, the weather and the shrimp eating conditions, a reasonable adjustment, so that the shrimp eat well To promote growth.
It is very important to do a good job in the management of shrimp farming in rice fields. First of all, we must insist on changing the water regularly to keep the water in the shrimp ditch fresh, especially in the summer and high temperature seasons. Even when paddy fields are kept on rice, we must keep the water level in the shrimp ditch stable and provide a good growth for the shrimps. Ecological environment. The second is to avoid the use of pesticides as much as possible, if you want to use, you should use low-toxicity and high-efficiency pesticides, pay attention to the use of methods, do not kill the shrimp. Third, we must pay attention to the elimination of enemy enemies. The frogs, snakes, water mice, etc. will all eat green shrimp, and we must take effective measures to eliminate them in time.
As long as we adhere to local conditions, operate strictly in accordance with the technical specifications, and effectively strengthen the feeding and management, the paddy field will have a good yield of 20-30 kg.
