Everyone who is engaged in aquaculture knows that "raising fish and raising water first" means that there are many methods of water diversion in aquaculture. The phrase "fat, live, tender and cool" is a high-level summary of the routine water diversion requirements. However, with the increase of breeding time, the conditions of ponds gradually deteriorate, especially in ponds with large amount of feeding, high yield, inconvenient water exchange and no dredging. The regulation of water quality has become a persistent problem. The water quality of such ponds Management needs to "water" and "soil" at the same time regulation in order to achieve good water transfer effect. So how to achieve "water and soil balance?" To this end, we summed up a set of "start from the bottom, soil remediation and pond water transfer parallel" control technology, and in the market for the promotion and application, and achieved good results This article focuses on the pond soil repair techniques described, I hope we can choose to apply. What is pond soil repair  Rehabilitation is an engineering concept, refers to the process of restoring some or all of a damaged specific object to the original state by external force. Pond soil remediation is the process of restoring the physical, chemical properties and composition of pond soils to the state before rearing through physical, chemical or biological technical measures. Rehabilitating the pond soil is beneficial to restoring the vitality of the pond and reducing the bottom hazard, thereby improving the ecological stability of the pond and ensuring the safety of breeding. Pond soil repair several ways 1. routine repair ▲ drainage, dredging, drying ponds: Qing Tong dredging generally in winter or early spring and other production-free season. The first row of pool water, and then dig the pond with water to remove mud. Every year, the bottom sediment should be removed and the sediment should be tiled to the beach surface of the pond. If the quantity is too large, part of it can be excavated. After the bottom of the pool after freezing and sun, promote the decomposition of organic matter, eliminate pathogens and other pests. Sun tan drying to the soil chapped, gray. In the meantime, the pond can also be trimmed and reinforced, plugging loopholes, repairing gates and eliminating weeds. ▲ soil testing and ion adjustment: detection of pH, exchange acidity, reduction index, organic content, N, P, K, Ca, S and other related indicators. The figure is a variety of aquaculture production, soil range of indicators of the description. ▲ through the detection of calcium to determine whether the absence of calcium, to determine whether calcium; phosphorus detection, to determine the adequacy of phosphorus content, as fertilizer process to determine whether or not to add phosphate fertilizer and added; pH value, used to determine the properties of soil , As well as the amount of lime calculated when the soil is repaired; the ratio of ammonia to nitric acid is the basis for the determination of the soil reduction index, the higher the ratio, the higher the degree of reduction. ▲ Tillage: After the completion of Tan Tong, tillage (the soil is evenly crushed flat), generally only need to flip the bottom surface of the tank can be 15 to 20 cm. Microbial repair The corresponding microbial population (eg, nitrifying microorganisms) is selected based on soil test data and the appropriate soil repair agent (eg quicklime) is selected for repair. It is also possible to use the organic substance in the bottom of the pond as a substrate for microbial integration and directional proliferation before being seeded back to the bottom of the pond to optimize the microbial population at the bottom of the pond and speed up soil remediation. Phytoremediation Ponds with conditions for rest and fishing can plant plants such as grasses or vegetables. After the planting period ends, they use the method of drying to allow plants to die naturally, and then plow and rake or other methods to clean them. After drying, they are buried in soil smoldering. For pond soil polluted by heavy metals, the most effective detoxification and remediation is to plant plants that can absorb heavy metals. When plants remove heavy metals, plants must be rooted and properly disposed of to avoid secondary pollution. 4. High temperature treatment If the sun is not enough intensity or continuous rainy weather, tanning pond effect can not be reached, the fire can quickly restore pond soil. Pond soil remediation is an important part of sustainable pond farming. For ponds that are seriously ill and ecologically fragile, we pay special attention to the bottom of the pond. In practice, we should select the appropriate method and operate scientifically according to the actual situation. Isostatic Graphite Mold,Round Isostatic Graphite,Isostatic Molded Round Graphite,Isostatic Pressing Graphite Round Henan Carbons New Material Technology Co., Ltd. , https://www.hncarbons.com
[Technology] pond soil repair four ways