Fluid Fertilizer Encyclopedia

Fluid fertilizer
Also known as liquid fertilizer. This includes fertilizers in a solution state and fertilizers containing suspensions of solid particles, such as liquid ammonia, ammonia water, carbonized ammonia water, and mixed aqueous solutions (or suspensions) containing nitrogen, phosphorus, and potassium fertilizers (or salts).
characteristic
(1) During the production process, there is no need for processing steps such as evaporation, drying, and granulation, resulting in relatively less investment in factory construction and lower production costs; (2) During the application process, there is no dust or smoke generated, and the product has no problem of moisture absorption and agglomeration; (3) Fast fertilizer efficiency, especially suitable for topdressing; (4) Suitable for mechanical fertilization; (5) Storage and transportation must use specific containers and transportation vehicles, which are both expensive. Under current conditions in China, they are only suitable for on-site production and application.
Detailed explanation
Also known as liquid fertilizer, a general term for clear solution fertilizer, suspended fertilizer containing solid particles, and anhydrous liquid ammonia. Fluid fertilizers do not require operational steps such as evaporation, drying, and granulation during the production process, resulting in low energy consumption, simple equipment, low investment, no dust and smoke generated during production and use, and no moisture absorption or agglomeration issues with the product. With special packaging and distribution systems, transportation and loading and unloading are very convenient. The disadvantage is that the concentration of Active ingredient is lower than that of corresponding solid fertilizers, and the transportation cost is also higher.
Fluid fertilizers are divided into two categories: liquid nitrogen fertilizers (including anhydrous liquid ammonia, ammonia water, and nitrogen containing solutions) and fluid composite fertilizers: ① anhydrous liquid ammonia: with N content higher than 82.02%, H2O content 0.2%~0.5%, and oil content lower than 5ppm. The application of anhydrous liquid ammonia in the United States accounts for about 38% of the total nitrogen fertilizer application, and is considered the cheapest nitrogen fertilizer. Various specifications of nitrogen containing solutions are directly used as nitrogen fertilizer, or as a source of nitrogen for the production of compound fertilizers. They can be divided into normal pressure nitrogen containing solutions and pressurized nitrogen containing solutions. They are Ammonium nitrate or (and) urea aqueous solutions, Ammonium nitrate and (or) urea and ammonia aqueous solutions, respectively. ② Fluid compound fertilizer: a mixed aqueous solution of nitrogen, phosphorus, and potassium fertilizers (salts) or a suspension containing solid fertilizers (salts). One of the keys to its technological development is to find phosphate fertilizer raw materials with high solubility and no precipitation, as well as measures that can make solid particles relatively stable and suspended in solution. The earliest source of phosphorus in fluid composite fertilizers was the relatively pure crystalline ammonium phosphate, which was made from ammonia neutralized thermal phosphoric acid or purified wet process phosphoric acid and was expensive. In recent years, multi Ammonium phosphate solution has been used, and its solubility is higher than that of diammonium phosphate. Polyphosphate ions have the function of chelating metal ions, which can keep metal ion impurities and trace element ions brought in from the raw material in the solution, preventing them from becoming phosphate precipitates. The specifications of multi Ammonium phosphate solution (percentage of N-P2O5-K2O) are 10-34-0, 11-37-0, etc., which are widely used to prepare fluid compound fertilizers. It can be mixed with nitrogen containing solution and Potassium chloride to form products of various specifications.
Shandong Dove Agriculture has been committed to the production and scientific research of liquid fertilizers for more than 20 years. Its main products are: oligosaccharide calcium magnesium boron, potassium Phosphorous acid, seaweed boron, sugar alcohol calcium magnesium, seaweed calcium magnesium, polyphenol phosphorus potassium, seaweed boron, liquid boron, twelve elements, boron molybdenum mixture, sugar alcohol zinc, organic potassium, calcium magnesium boron iron zinc, water soluble fertilizer containing Humic acid, phosphorus calcium zinc silicon mixture, sugar alcohol iron, etc.
Detailed inquiry: Zhang 13583696935 (same WeChat account)