In order to raise water and raise water, the water is first used to cultivate the mud, which means that the management and improvement of the bottom mud is crucial to the conservation of earthworms. In the special cultivation of aquaculture, the management of the bottom sediment is often neglected. Despising. The sediment of the pond is mainly the sediments of the organic material such as remaining bait, animal excrement and animal and plant corpses, and the bottom of the pond is often in an oxygen deficient state. The complete degradation of organic matter requires most of the aerobic conditions. It is difficult for organic matter in hypoxic conditions to be completely decomposed, resulting in a large number of harmful intermediate metabolites. These large amounts of harmful products are flooded in the bottom sediment and are a source of water quality for pond culture. The very large hidden dangers are even more damaging to those who are more closely related to the bottom sediment. If you spend more than six months of hibernation in the bottom sediment of these large amounts of harmful products, it can be a disaster. Three measures to improve the management of pond bottom sludge: 1, the use of benthic organisms to improve the purification of sediment Well-known zoobenthos, such as snails, river rafts, twigs, etc., use the organic matter in the bottom mud to survive. Such as the representative species of quail - otters, usually live in water depth of 0.3 to 4 meters of soil, devour soil, while eating organic sludge, bacteria and benthic algae from the sludge, and sometimes also eating filamentous algae and small animals. The amount of mud in the leeches can reach 8 to 9 times of its own volume every day. Therefore, leeches are the best improvers of pond sediments and play an important role in the self-purification process of pond water quality sediments. Before and after the larvae are stocked, snails, river otters, etc., taken from natural bodies of water, are given 100-300 kilograms per mu, depending on whether the source is sufficient. The snails and river clams grow rapidly in the organic-rich pond sediments and have a large space for growth. On the one hand, they provide a large amount of fresh and live animal feed for the clams in the pond, and on the other hand, to the bottom of the pond. The purification and improvement of the bottom sludge plays an important role. In addition to the above-mentioned benthic animals, there are a large number of small benthic animals at the bottom of the pool. These small benthic organisms also feed on the one hand, and on the other hand, they function to purify and improve the bottom sediment. Therefore, as far as aquaculture is concerned, use as little pesticides as possible to prevent these benthic organisms from being killed. 2, promote the exchange of water up and down, to promote the sediment re-suspended and then released In the afternoon during sunny afternoons, when the dissolved oxygen in the upper surface water reaches 1.5 to 2 times saturation and above, the specific dissolved oxygen value is generally 10 mg/L or more, and the multi-function water exchange between the upper and lower aquifers and the resuspension of the sediment is opened. The device, starting time per day, is appropriate for 1 to 2 hours depending on the circumstances. This is the best measure for the scientific management of sediments. Further explanations of the principles are not detailed here. 3, regular application of bottom improver The general bottom modifier has two functions. One is an oxidant, such as potassium peroxodisulfate. Because the bottom of the pool is usually in a reduced state, ammonia, nitrite and hydrogen sulfide produced by the metabolites are used as oxidants to act as oxidants at the bottom of the pool to eliminate harmful substances such as nitrite and hydrogen sulfide at the bottom of the pool; Agents to improve the bottom of the pool dissolved oxygen, increase the amount of oxygen at the bottom of the pool, such as calcium peroxide, sodium percarbonate, etc. is the bottom of the pond "oxygen" supplement. Note that the application process, the bottom of the pool improver do not use water or powder, the application of water or powder difficult to sink the bottom of the pool, the application of particle type (preferably add Shen type) bottom modifier so that most can sink the bottom of the pool, in The bottom of the pool works. There is a special need to remind the market that many of the bottom reform products are made of high-quality stone powder, which plays a role in adsorption, such as zeolite powder. After application, the surface looks refreshed and the suspended organic matter in the water is reduced. Little do they know that these agents are only to accelerate the flocculation and sedimentation of suspended organic matter in the water and aggravate the "load" at the bottom of the pond, which is the reverse effect of the bottom reform. Face Recognition Thermometer,Face Recognition Thermometer Manufacturer,Face Recognition Thermometer Office,Face Recognition Thermometer Building Zhuhai Mingke Electronics Technology Co., Ltd , https://www.zhmkdz-electronics.com