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Soil is one of the important foundations of agricultural development. Therefore, paying attention to soil environment and health is one of the important contents to ensure the healthy and sustainable development of agriculture and promote agricultural production and efficiency. In the past, the majority of farmers carried out soil testing, and they could only rely on sensory methods such as eyes and hand touch, which were neither scientific nor accurate. Nowadays, with the promotion and application of professional instruments such as soil testers , modern agriculture has begun to bid farewell to backwardness. The soil testing method is well documented and no longer blind.
Different crops like different soil environments. The soil environment is not suitable and needs to be tested and analyzed. When the soil environment is not suitable, the agricultural field will be supplemented by irrigation and fertilization, but how much it needs to be supplemented also needs to be supported by soil environmental data. It can be seen that scientific production cannot be carried out without scientific soil testing. The soil tester uses the current rapid soil testing technology to achieve professional testing and analysis of the soil environment, and provides technical support for large-scale soil testing. With its support, grass-roots departments can also conduct soil testing and analysis independently. Work to provide scientific guidance for the broad agricultural development and production.
The soil tester is based on soil testing and fertilizer field tests. Based on the requirements of crop fertilizer requirements, soil fertilizer performance and fertilizer effects, based on the rational application of organic fertilizers, the soil tester proposes nitrogen, phosphorus, potassium, and medium and trace element fertilizers. Application quantity, fertilization period and application method. It can also be said that the soil tester is a "technician" that provides services to farmers at the grass-roots level. Through its detection and analysis, it can more clearly guide the profit and loss of land nutrients. Under its guidance, scientific application of formula fertilizer can both Effectively adjust and resolve the contradiction between crop fertilizer needs and soil fertilizer supply, targeted supplementation of nutrients required by crops, and in-depth implementation of the weight loss and efficiency targets proposed by agricultural development, and promote the green development of modern agriculture.
Synthetic cryolite is a white crystalline powder or a sandy-size granularity, and a pinkish crystalline powder or a sandy-size granularity as well. Sp.gr.2.95-3.01g/cm3, melting point about 1000°C, specific heat 1.056j/g°C at 18-100°C. It`s slightly soluble in water, but insoluble in anhydrous hydrogen fluoride. The content of its crystal water will be decreased while the increasing of the molecular ratio, therefore its loss on ignition will be also decreased while the increasing of the molecular ratio. After the paste of synthetic cryolite with different molecular ratio dehydrates, the loss on ignition at 800°C will appear 10.34%, 6.22% and 2.56% when the molecular ratio reaches 1.74, 2.14 and 2.63 reactively.
Uses:
It`s mainly used as a flux in the aluminum smelting by fused-salt electrolysis; also an opalizer in the manufacture of enamel; an opacifier and auxiliary solvent of glass and enamel; an insecticide of crops; a flux in aluminum alloy casting; and in the production of ferrous alloy and effervescing steel; as well as a wear-resistant filler for Resin and rubber-boned Abrasive wheels.
Synthetic Cryolite,Synthetic Cryolite Abrasive,Sodium Aluminum Hexafluoride,Industry Grade Synthetic Cryolite
HENAN JINHE INDUSTRY CO.,LTD , https://www.hnchromiumoxidegreen.com