The advantage of mixing organic fertilizer and soybean milk to raise fry is to reduce the amount of soybeans, the water quality is relatively stable, and the effect is very good. The survival rate of fry is high. The operating method is described below. First, organic fertilizer used as base fertilizer. About 7 days before the fry in the pond, apply 500 kg of fermented and decomposed organic fertilizer per acre, fertilize the water quality, and breed the natural bait of the fry. Second, timely splash milk. The soaked soybeans were ground into soybean milk with a refiner (the ratio of soybeans to water was 1:15). Fish seedlings in the early period of 2 kg ~ 4 kilograms per acre spilled milk, generally 3 times a day to 5 times the pulp, the last time every day sprinkling time does not exceed 5 pm. As the fish grows, you need to increase the amount and frequency of feeding. Third, top-dressing with organic fertilizer. Three days after the fry of the fish seedlings, fertilizers were topdressed with organic fertilizers to ensure fertilizer efficiency and proliferate the natural food. Generally every 3 days to 5 days topdressing, the amount of top dressing per acre is 100 kg ~ 150 kg.
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