Cleverly changing the acidic fish pond

In the practice of fishery production, some newly excavated fish ponds were discovered. The green manure was not bad. The pond water was transparent and the fish was slow and thin. Sometimes the fish was dead. The reason for this is mainly due to the acidity of fish ponds. These acidic fish ponds need to be transformed in order to capture the harvest of the fishery.

To reform the acidic fish farms, we must find out the reasons and take measures. If it is an acidic fish pond caused by water sources, drain the original water and re-inject fresh clean water. However, due to soil factors of acidic fish ponds, it is often necessary to adopt several comprehensive treatment methods in order to receive good results.

Washing the acid with water to wash the acid is to drain the original pond water, fill it with fresh water, and then drain it for a period of time. After repeated changes of water two or three times, the pH of the pond water can be changed from the original 3- When the level rises to about 7, the water quality is neutral.

After fertilizing the acid, the fish ponds washed with acid are used. If the acidity and alkalinity are not stable, the fertilizer may be used to pressurize the acid. The use of fertilizer to pressurize the acid is to apply more organic fertilizer, improve the sediment quality of the pond, form a silt layer at the bottom of the pond, and block the application of acid substances in the deep soil. The best organic fertilizer is human, poultry, and manure. These fertilizers tend to become paste and become silt. In general, 800-1000 kg of organic fertilizers, such as livestock and poultry, can be placed in a single pond per acre. When the bottom of the pond is covered with silt, the acid will be trapped in the soil and will not dissolve into the water.

To neutralize acid with alkali is to put quicklime into the fish pond, so that the acidic water is neutralized. Acidified fish ponds, after adding quicklime, can not only neutralize acid, but also play a role in eliminating pathogens. Therefore, the neutralization of acid with alkali can be performed in combination with clear ponds, disease prevention, and fertilization. If quicklime is used in the clear pond, it will be about 140kg per mu. After stocking, 10 kg of lime per acre can be applied every 10-15 days.

Scientific stocking and management of acidic fish ponds, as long as we have mastered the scientific method, in the breeding of ground inspection, pay more attention, do not have to spend much money, you can and receive very good results. After the improved treatment of acidic fish ponds, when stocking fish, stocks of more acid-tolerant tilapia, silver bream and other fish should be stocked and mixed with some other fish. With the gradual improvement of the water environment, normal fishes will be mixed again.

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