First, the use of mud machine cleaning method
Conditional farmers can use this method. About 20 centimeters of water is left in the winter pool. Drain the mud at the bottom with a high-pressure water gun. Then use a mud pump to pull the water out of the pool together with the mud. After leaving the bottom, leave 5 to 10 centimeters thick mud. Afterwards, the ponds were oxidized to oxidize the organic matter on the bottom of the pond, and then the tractor was used to plow the soil to oxidize the organic matter covered in the deep layer, and then clean the weeds around the pond. Ikebukuro must be raised to a height of about 30 cm above the highest level of the year, and about 1 meter wide. Finally, the whole pool of 75 kg of lime was sprayed on the per acre. This method is suitable for cultivating fish ponds with less density.
Second, the use of quicklime dredging method
This method is carried out after catching fish in winter and spring. Dry the pond water, and after the sun exposure or freezing, remove the thick silt, remove the weeds, and increase the height of the pond. 300 to 400 kg of lime per acre. The method is to dissolve the block ash with a small amount of water first, and then the whole pool is splashed on the mud at the bottom of the tank and let it dry naturally. After using quicklime, there should be no accumulation of water in the pool and it needs to be guaranteed to dry for about 15 days.
The reconstructed ponds not only greatly reduce the pathogens and oxygen-consuming factors in the pond, improve the breeding environment, but also increase the water level, and improve the stability and stocking capacity of the water body. According to practice, the economic benefits of rearing fish, shrimp, and crab in a modified pond are 5 to 10 times that of unmodified use.
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