Shrimp are based on the bottom of the habitat for food, so the cultivation of natural organisms in the pond is the best good food for juvenile shrimp, can promote early growth, enhance physical fitness, and enhance disease resistance. At the same time, the full use of pond productivity and the reduction of shrimp cost are effective measures for raising the shrimp. Production practice shows that the emphasis on the cultivation of feed organisms can reduce the feed coefficient, reduce costs, and increase economic efficiency.
Cultivation method: 50 kg of chicken manure after fermentation with organic fertilizer per mu, and 2 kg of fertilizer and 0.5 kg of phosphate fertilizer per acre with inorganic fertilizer. In this way, the water's fatness is relatively balanced, and the food organisms grow well. Phosphorus can also control the growth of blue-green algae. Let diatoms become the majority of the pool. The water color is yellow-green or yellow-brown. If the water color is too clear and the transparency is greater than 50cm, the fertilizer should be topped 2-3 days later. When the desired concentration is reached, the fertilization is stopped.
In the first cultivation of biological feed, the pool water depth of 50cm is enough, first the water color culture, and then add water for the second culture. This is a reasonable point. We cultivate phytoplankton and grow by photosynthesis. When the depth of pool water is more than 1 meter, the water in the lower layer is insufficient, and phytoplankton is difficult to reproduce. In addition, the cultivation of benthic organisms should spread fertilizer particles, sinking in the bottom of the pool; to cultivate plankton, the fertilizer must be dissolved and splashed on the surface of the water, dissolved in water.
Cultivation method: 50 kg of chicken manure after fermentation with organic fertilizer per mu, and 2 kg of fertilizer and 0.5 kg of phosphate fertilizer per acre with inorganic fertilizer. In this way, the water's fatness is relatively balanced, and the food organisms grow well. Phosphorus can also control the growth of blue-green algae. Let diatoms become the majority of the pool. The water color is yellow-green or yellow-brown. If the water color is too clear and the transparency is greater than 50cm, the fertilizer should be topped 2-3 days later. When the desired concentration is reached, the fertilization is stopped.
In the first cultivation of biological feed, the pool water depth of 50cm is enough, first the water color culture, and then add water for the second culture. This is a reasonable point. We cultivate phytoplankton and grow by photosynthesis. When the depth of pool water is more than 1 meter, the water in the lower layer is insufficient, and phytoplankton is difficult to reproduce. In addition, the cultivation of benthic organisms should spread fertilizer particles, sinking in the bottom of the pool; to cultivate plankton, the fertilizer must be dissolved and splashed on the surface of the water, dissolved in water.
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