? First, the benefits of raising fish in paddy fields
1. It can eliminate overwintering pests and moths in paddy fields. 2. Fish can eliminate weeds in the paddy field, loosen the soil and can realize no-tillage. 3. It can make full use of water resources and save land, energy, fertilizer and pesticide. 4. It can improve the quality of rice, promote the high yield of rice, and realize the "fish - rice" double harvest.? Second, paddy fish farming should have the conditions
1. Sufficient water, paddy water, drainage is convenient, the ridge does not leak. 2. Good water quality, in line with the fisheries water standards. 3. Plenty of light, flat terrain, warm and ventilated places are more suitable for the growth of fish and rice.? Third, the construction of basic facilities for rice-fish farming
1. The ridge must be raised to about 0.8 meters, the top surface width of 60 to 70 cm, in order to facilitate the cutting of rice stubble irrigation into the deep water culture of adult fish. There are many ways to transform the ridge, available triple boards, cement boards, bricks to protect the ridge, but the most important point is that the transformation of the ridge should not be afraid of flash floods, and can prevent leakage, to achieve the safety of fish farming. 2. Fish pit construction? Fish pit is a fish habitat, the size of the fish pit should be able to accommodate all the fish in the paddy field in case of emergency is appropriate, and will be able to raise all the fish in the paddy field, not due to the lack of oxygen in the water body and caused by the death of farmed fish. 3. Fish ditch construction? Fish ditch is an important channel for fish to enter and exit the fish pit. Fish ditch width 30 ~ 40 centimeters, 50 ~ 60 centimeters deep, generally distributed as "well" "field" "eye" type. 4. Stop the fish facilities? Including water inlets, drainage outlets to stop fish facilities, and in front of the fish stopping facilities must have an area large enough to stop the pollution facilities, in order to prevent weeds, floats and other blocking fish stopping facilities, resulting in poor water flow and overflowing water to escape from the fish situation. The area of the fish interceptor facility is based on the maximum overwater area during flooding, and the fish interceptor facility must be designed securely and installed firmly.? Fourth, stocking fish fry
Generally stocked 3 to 6 cm long carp fry mainly in the insertion of early rice after 5 days, stocking fish fry. In the harvest of early rice, to foster the fish fry to the pool, and so on after the insertion of late rice, and then stocked in. By the time the late rice is harvested, the larger carp are fished out and the smaller fish are left behind for the next year's paddy fish fry.? Five, rice paddy fish farming in the fertilization and drug application technology
1. Fertilization technology? More organic fertilizer, less chemical fertilizer. General per 667 square meters of rice paddy manure 1500 kilograms is appropriate, so that the rice, fish are fat and strong. If the application of fertilizer, generally urea and potash-based, in the application, can not be scattered in the fish concentration places, such as fish pits, fish ditches, so as to avoid fish accidentally eat fertilizer. At the same time, the fish farming field should be divided into 2 or 3 times for fertilization, that is, the large field will first fertilize part of the field, and then fertilize part of the field after 2 days, so that the fish in the part of the field left behind will have space to move around and feed. Fertilizing on sunny days should be done in small amounts, not too much fertilizer at one time, not fertilizing in rainy weather, and not fertilizing in hot weather when the fish float their heads.2. Pesticide application techniques? Fish farming rice paddy pesticide application should adhere to the principle of biopesticide-based, highly toxic pesticides banned. Pesticide application in the rice field, must pay attention to the drug sprayed on the rice. Pesticide application precautions: sudden changes in the weather, hot weather can not apply pesticides, this is because of sudden changes in the climate when the fish will appear a moment of discomfort, if the application of pesticides at this time will be poisoned. Rainy weather can not apply pesticides, because when it rains, the pesticides applied will flow into the field along with the stalks wet by the rain, which is equivalent to the application of pesticides in the field water, the fish is more difficult to withstand. Application of liquid pesticides should be selected on sunny afternoons when the seedlings are drying, and require the spraying of the leaves, rather than spraying towards the surface of the field, so as to avoid the liquid into the water to hurt the fish. Spreading powder drugs should be selected early in the morning on a sunny day when there is dew, you can use the wet dew to stick pesticides, so as to achieve the purpose of eliminating pests.