Application of ammonia in fish farming production

Fish can generally be released 7 to 10 days after the pond is cleared with nitrogen water. If ammonia is applied 1 times every 10 days from April to November months, at 5kg per mu each time, the yield per mu can be increased10 kilograms per acre. It is not suitable to fertilize ponds with overgrown aquatic plants. Newly excavated ponds should be alternately applied with superphosphate for better results.