The fertilizers currently being promoted or applied in China are: boron fertilizer, molybdenum fertilizer, zinc fertilizer, copper fertilizer, manganese fertilizer, and iron fertilizer. They are applied to crops, trees, pastures, fruit trees, and vegetables, and they all have irreplaceable effects. Applying trace fertilizers to nutrient-susceptible soils and sensitive plants has a significant effect on yield increase.
There are various types of fertilizers. The boron fertilizers, molybdenum fertilizers, and zinc fertilizers that are currently popularized and applied are classified according to the contained nutrient elements.
According to the nutrient composition, commonly used fertilizer can be roughly divided into three categories:
Simple fertilizer. This type of fertilizer generally contains only one trace element that the crop needs, such as zinc sulfate and ferrous sulfate. Most of these fertilizers are easily soluble in water and are easy to apply. They can be used as base fertilizers, seed fertilizers, and fertilizers.
Compound fertilizer. This kind of fertilizer is added with one or more trace elements, including the combination of a large number of elements and trace elements and trace elements and trace elements, such as ammonium zinc phosphate, manganese ammonium phosphate and so on. Once these fertilizers are applied at the same time, they are replenished with several nutrients, which is relatively labor-saving, but it is difficult to adapt them to local conditions.
Mixed fertilizer. This type of fertilizer is made by mixing various simple fertilizers according to their needs at the time of manufacture or application, and has the advantages of flexible composition. At present, most foreign countries in the fertilizer station according to the needs of users to prepare mixed fertilizer.
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