Barnyard grass overruns the grass and breeds loach

For every 667 square meter pond where barnyard grass is flooded, pig or cow manure 100 kilograms or compost 150 kilograms are applied as base fertilizer. Before stocking loach seeds, soak the loach seedlings in salt water with a concentration of 3%～4% for 3～5 minutes. In the first 1 months after stocking, fertilization and baiting will be the main focus. Fully fermented compost or pig or cow manure 20～30 kilograms will be applied every 667 square meters every day. Sprinkle the entire pond to keep the transparency of the pond water at 50% wheat flour, 20% bean cake powder, 10% rice bran powder, 10% fish meal or silkworm chrysalis powder, 2 times a day, 7～8 in the morning and 1～ in the afternoon. Under normal circumstances, the water should be changed 1 times 5～7 days, and the water should be changed 30～40 centimeters each time. If red fin disease is found, the tetracycline solution with a concentration of 0.1mg/kg can be used to soak the loach body 1～2 hours or use 0.2mg