1. Type of compound fertilizer
According to its manufacturing process, compound fertilizer can be divided into three categories: chemical fertilizer, NPK compound fertilizer and bulk blended fertilizer.
1.1 Chemical fertilizer is a compound fertilizer made by chemical methods, such as potassium dihydrogen phosphate.
1.2 NPK compound fertilizer is a kind of compound fertilizer containing many elements, which is made of two or more kinds of simple fertilizers through a certain process in the fertilizer manufacturer. Some chemical reactions take place in the process. The compound fertilizer usually refers to this kind of granular compound fertilizer. The fertilizer plant processes the compound fertilizer through the industrial NPK fertilizer production line. The fertilizer granulator makes different types of fertilizer raw materials into particles, which greatly improves the fertilizer efficiency and use value.
1.3 Bulk blended fertilizer is a kind of compound fertilizer made by mechanical mixing of several fertilizers. The processing process of the bulk blending fertilizer machine is simple mechanical mixing without chemical reaction. For example, ammonium chlorophosphate is a mixture of ammonium chloride and ammonium phosphate.
2. Characteristics of compound fertilizer
2.1 Advantages of compound fertilizer
3.1. It has high effective components and many kinds of nutrients.
3.2. Less by-component, less adverse effect on Soil
3.3. Low production cost
3.4. Good physical properties.
2.2 Disadvantages of compound fertilizer
Because of the fixed proportion of nutrients, it is difficult to meet the different needs of various soils and crops. It is often necessary to supplement and regulate with simple fertilizers. It is difficult to meet the requirements of fertilization technology. The movement rules of various nutrients in the soil and the requirements of fertilization technology are different. For example, the mobility of nitrogen fertilizer is large, the mobility of P and K fertilizer is small, but the after effect is long. In terms of application, nitrogen fertilizer is usually used as top dressing, phosphorus and potassium fertilizer is usually used as base fertilizer and seed fertilizer, while compound fertilizer is used to apply all kinds of nutrients at the same location and at the same period, so it is difficult to meet the requirements of the cooperative compound for nutrients at a certain period. Therefore, it is necessary to find out the soil conditions, growth characteristics and fertilizer requirements of various crops. NPK fertilizer production line processes compound fertilizer according to the formula, and the land uses appropriate compound fertilizer.