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27
2020
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Chemically synthesized compound fertilizer
Chemically synthesized compound fertilizer refers to the compound fertilizer that is made through chemical (chemical) action or ammoniation granulation process and is synthesized through obvious chemical reaction. Common types mainly include diammonium phosphate, monoammonium phosphate, phosphate nitrate, potassium nitrate and potassium dihydrogen phosphate.
Chemically synthesized compound fertilizer refers to the compound fertilizer that is made through chemical (chemical) action or ammoniation granulation process and is synthesized through obvious chemical reaction. Common types mainly include diammonium phosphate, monoammonium phosphate, phosphate nitrate, potassium nitrate and potassium dihydrogen phosphate. This kind of compound fertilizer contains elements required by two or more crops, with high nutrient content, which can supply nutrients required by crops in a balanced and long-term manner, and improve the effect of fertilization and yield increase.
Secondly, this kind of compound fertilizer is mostly granular, with small moisture absorption, no caking and good physical properties, which can improve the bad properties of some simple fertilizers, and is also convenient for storage, especially for mechanized fertilization. Finally, this kind of fertilizer can be used not only as seed fertilizer, but also as base fertilizer and topdressing, with a wide range of applications.
However, there are also some shortcomings in compound fertilizer. For example, the proportion of nitrogen, phosphorus and potassium nutrients is relatively fixed, which cannot be applied to the nutrient requirements of various soils and crops. Therefore, in the process of compound fertilizer application, it is generally necessary to cooperate with the application of simple fertilizers in order to meet the needs of various crops in different growth stages for nutrient types and quantities, and to achieve the balanced needs of crops for high-yield nutrients.
In addition, the compound fertilizer is formed by chemical reaction of different simple substances and compound fertilizers, so it is difficult to meet the requirements of crops for different nutrient fertilization technologies in the fertilizer application process, and cannot obtain the best application effect of various nutrients contained in itself.
Secondly, this kind of compound fertilizer is mostly granular, with small moisture absorption, no caking and good physical properties, which can improve the bad properties of some simple fertilizers, and is also convenient for storage, especially for mechanized fertilization. Finally, this kind of fertilizer can be used not only as seed fertilizer, but also as base fertilizer and topdressing, with a wide range of applications.
However, there are also some shortcomings in compound fertilizer. For example, the proportion of nitrogen, phosphorus and potassium nutrients is relatively fixed, which cannot be applied to the nutrient requirements of various soils and crops. Therefore, in the process of compound fertilizer application, it is generally necessary to cooperate with the application of simple fertilizers in order to meet the needs of various crops in different growth stages for nutrient types and quantities, and to achieve the balanced needs of crops for high-yield nutrients.
In addition, the compound fertilizer is formed by chemical reaction of different simple substances and compound fertilizers, so it is difficult to meet the requirements of crops for different nutrient fertilization technologies in the fertilizer application process, and cannot obtain the best application effect of various nutrients contained in itself.
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