The key points about the technology of polyculture of Shrimp
2019-09-07 10:04:18
The use of shrimp pond polyculture of sea cucumbers is a new breeding technology and model. It is a major measure for the comprehensive development and utilization of shrimp ponds and is worth promoting.
The economic benefits of mixed shrimp farming are very high. Generally, there are 5000 seedlings of 1.5 cm or more per acre. After two years of meticulous care, the general harvest rate can be over 20%, and the yield per mu is between 120 and 150 kg. Sea cucumber can reach a value of 8,000 yuan per mu.
1. Selection of polytrophic ginseng pools Under normal circumstances, sediments with harder sediments should be selected, and no freshwater inflows should occur. The salinity of seawater is kept above 26% for many years.
2. Clearance, decontamination and detoxification shall be carried out in the shrimp pond before Qingchi disinfection and stocking. Disinfection can use bleach or quicklime, bleaching powder dosage 50 mg / kg, quicklime dosage of 100 kg per mu.
3. The function of putting the attachment base on the attachment base has two points: one is that it can attach a large amount of benthic diatoms (the main source of sea cucumbers); the second is the habitat of sea cucumbers, which can guarantee the safety of summer and winter. At present, there are stones, hollow bricks, porcelain tubes, and tiles that are used as the attachment bases. The amount to be placed depends on the number of seedlings laid, and is generally no less than 5 to 10 cubic meters per mu.
4. Apply basic fertilizer 10 days before fertilization and cultivate benthic algae and phytoplankton. Apply 20 to 40 kilograms (dry weight) of chicken manure per acre. Apply 2 kg/mu inorganic fertilizer in spring. Create a good feeding and habitat for sea cucumbers.
5, seed stocking sea cucumber release time is generally spring and autumn. Spring blooms from mid-March to 4 weekends; fall falls around October.
6. The daily management of shrimp pond water should be kept more than 1.5 meters deep year-round, and the high temperature period and winter water should be raised to about 2 meters. During the growing period, change the water once every 10 days, change the amount of water to about 30%; maintain the salinity of the pool water at more than 26°C, enter the rainy season, especially the stormy weather, and eliminate the fresh water on the pool surface; after the winter water surface is frozen, The snow and debris on the ice should be promptly removed to maintain the transparency of the pool water. At the same time, the ice should be properly used to increase the dissolved oxygen in the pool water.
The economic benefits of mixed shrimp farming are very high. Generally, there are 5000 seedlings of 1.5 cm or more per acre. After two years of meticulous care, the general harvest rate can be over 20%, and the yield per mu is between 120 and 150 kg. Sea cucumber can reach a value of 8,000 yuan per mu.
1. Selection of polytrophic ginseng pools Under normal circumstances, sediments with harder sediments should be selected, and no freshwater inflows should occur. The salinity of seawater is kept above 26% for many years.
2. Clearance, decontamination and detoxification shall be carried out in the shrimp pond before Qingchi disinfection and stocking. Disinfection can use bleach or quicklime, bleaching powder dosage 50 mg / kg, quicklime dosage of 100 kg per mu.
3. The function of putting the attachment base on the attachment base has two points: one is that it can attach a large amount of benthic diatoms (the main source of sea cucumbers); the second is the habitat of sea cucumbers, which can guarantee the safety of summer and winter. At present, there are stones, hollow bricks, porcelain tubes, and tiles that are used as the attachment bases. The amount to be placed depends on the number of seedlings laid, and is generally no less than 5 to 10 cubic meters per mu.
4. Apply basic fertilizer 10 days before fertilization and cultivate benthic algae and phytoplankton. Apply 20 to 40 kilograms (dry weight) of chicken manure per acre. Apply 2 kg/mu inorganic fertilizer in spring. Create a good feeding and habitat for sea cucumbers.
5, seed stocking sea cucumber release time is generally spring and autumn. Spring blooms from mid-March to 4 weekends; fall falls around October.
6. The daily management of shrimp pond water should be kept more than 1.5 meters deep year-round, and the high temperature period and winter water should be raised to about 2 meters. During the growing period, change the water once every 10 days, change the amount of water to about 30%; maintain the salinity of the pool water at more than 26°C, enter the rainy season, especially the stormy weather, and eliminate the fresh water on the pool surface; after the winter water surface is frozen, The snow and debris on the ice should be promptly removed to maintain the transparency of the pool water. At the same time, the ice should be properly used to increase the dissolved oxygen in the pool water.
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