During the day, the oxygen produced by the phytoplankton and the oxygen dissolved in the air from the air are always higher at the downside from the fish pond, and the greater the wind power, the greater the difference in dissolved oxygen content between the top and bottom. At night, on the other hand, due to the fact that there are more plankton and organic matter at the lower end of the fish pond at night than at the upper hand, resulting in a large amount of oxygen consumption at night, so there is more dissolved oxygen in the upper winds than in the lower winds. First, add new water regularly. In the case of high-density farming, there are more baits and dirt in fish ponds, and anaerobic fermentation produces harmful substances such as ammonia nitrogen and hydrogen sulfide, which deteriorates the water body, especially in the summer hot season, where the water quality changes more quickly, so regular water injection is a regulation Water quality is one of the most commonly used and most economical methods. Usually, fresh water should be filled every 7 days to 10 days. Each time, add 15 cm to 20 cm of water. When the deterioration of the pool water is severe, water changes should be adopted to maintain good water quality conditions. For ponds mainly for raising pupa and squid, the water color should be kept green or dark brown with a transparency of 20 cm to 30 cm; ponds with mainly grasses and squid, the water color of the ponds and squid ponds should be slightly lighter, for every 7 The water should be poured once a day or around 10 days, and the water level should be increased by 15-20 cm each time. In summer, fish ponds should try their best to maintain the highest water level. Second, regularly stir the sediment. Stirring the bottom mud can promote the continuous decomposition of the bottom layer and indirectly control the change of water quality. Generally, it is stirred once every 10 days and 15 days. The agitated area is not less than 1/3 of the water body area per time, and the stirring effect is best at noon on sunny days, but do not stir during hot, low pressure weather. Third, use oxygen aerator to increase oxygen. Intensive ponds should be equipped with special aerators, among which the impeller type is the best. The oxygen can be turned on to increase convection, increase the dissolved oxygen in the water and emit toxic gases. On, each boot time is 1 hour - 4 hours. Generally, oxygen can be turned on at 2 to 3 o'clock noon on a sunny day, and oxygen can be turned on when there is a risk of floating head. Fourth, appropriate topdressing fertilizer. Suitable for phytoplankton to maintain a proper density and strong living conditions for fish consumption, while phytoplankton can absorb the nutrients of water bodies, and produce oxygen through photosynthesis, thereby improving water quality. Therefore, in summer and autumn, fertilization should be dominated by chemical fertilizers, and organic fertilizers should be less applied. Generally, 2.5 kg of urea and 5 kg of superphosphate are used in ponds with lean water, and applied every 5 days to 7 days. To apply organic fertilizer, it must be fully fermented and the method should be used at the most. Fifth, the use of drugs. To improve some ponds with high fish density and that cannot be changed frequently, lime should be regularly applied to regulate the water quality and reduce the toxic effects of hydrogen sulfide and other toxic gases. Each time, a kilogram of lime of 15 kilograms can be used per acre of pond. After adding water, the whole pool will be spilled and it will be carried out every 20 days or so. Photosynthetic bacteria have the advantages of purifying water quality and increasing the amount of dissolved oxygen in the water. They can also be used as bait for filter-feeding fish, splashing once every 20 days. Excessive zooplankton in fish ponds can be killed by trichlorfon and 0.3 ml to 0.5 ml per cubic meter of water. Excessive blue-green algae can be inhibited by copper sulfate, 0.7 ml per cubic meter of water. In the event of fish floating heads, oxygenation agents and other related drugs may also be used to increase oxygen. 6. Transplant aquatic plants. Aquatic plants as the primary "productivity" of the water can control the growth of fish ponds and algae, and play a very good role in water purification. According to the actual conditions of the fish ponds, the farmers can scientifically plan and introduce aquatic plants such as black algae, Houttuynia, water hyacinth, and duckweed in the water body, and adjust the water quality to improve the dissolved oxygen level. Seven sets of aquatic animals. Aquatic animals are the "consumers" in the water body. Proper transplantation can promote the balance of water ecosystem and achieve the role of regulating water quality. Such as nesting squid, squid can make full use of the residual organic matter in the water, greatly reducing the decomposition of organic matter at the bottom of the water, reducing the chance of pollution. The set of cultured herring can inhibit the consumption of various nutrients and oxygen in the body of water by organisms such as snails. Nesting squid can make full use of natural bait resources such as plankton in the water to control the water body fatness. Sets of eel can inhibit rotifers in water bodies. Sets of grasses, cockroaches, and squid can ensure sufficient oxygen in the water body and purify the breeding environment. Sets of squid, black squid, squid, etc. can effectively control the growth and reproduction of wild fish and shrimp in the water, and reduce the competitive pressure of competition for competition with the main fish.
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Benefits:
The effectiveness is tender, balanced. Effectively improve the pliability and fullness of the leathers, increase the yield of leather output. When used in Wet-Blue reconditioning, it promotes the absorption of tanning agent and improve the dyeing uniformity, it has very good permeability, evenly soften effect can be obtained. Its use will not lead to loose grain on leather.
This product should be stored in a cool and dry place in sealed container, avoiding insolation, high temperature and damp. The product has been formulated for optimal stability. Extended storage or adverse conditions such as higher temperature or higher humidity may lead to a higher dosage requirement.
Enzyme preparations are proteins, which may induce sensitization and cause allergic type reactions in sensitized individuals. Prolonged contact may cause minor irritation for skin, eyes or nasal mucosa, so any direct contiguity with human body should be avoided. If irritation or allergic response for skin or eyes develops, consult a doctor.