What are the uses and differences of fertilizers such as compound fertilizer, compound fertilizer and foliar fertilizer?

Fertilizer is a kind of substance that provides one or more essential nutrient elements for plants, improves soil properties and soil fertility, and is one of the material bases of agricultural production. What are the uses and differences of fertilizers such as compound fertilizer, compound fertilizer and foliar fertilizer? Let's learn more about it.

In the process of agricultural production, we use many kinds of fertilizers, and all kinds of fertilizers have different uses and differences. Here is a brief introduction to the properties of various fertilizers:

(1) Formula fertilizer refers to the use of soil testing formula technology, according to the nutritional needs of different crops, soil nutrient content and fertilizer supply characteristics, using all kinds of simple chemical fertilizers as raw materials, adding appropriate amount of medium and trace elements or specific organic fertilizers, it is a special fertilizer with strong pertinence and regional characteristics, which is processed by mixing or granulation process.

(2) foliar fertilizer refers to the fertilizer applied to plant leaves and can be absorbed and utilized by it.

(3) the acid regulating agent of bed soil refers to the preparation used to adjust the acidity (or pH value) of seedling soil during the seedling period of crops.

(4) microbial fertilizer refers to the living products containing specific microorganisms that can obtain specific fertilizer effects when used in agricultural production, which not only includes the supply of soil, environment and plant nutrient elements. it also includes the beneficial effects of its metabolites on plants.

(5) Organic fertilizer refers to carbon-containing materials derived from plants or animals, which are fermented and ripened and applied to the soil to provide plant nutrients as its main effect.

(6) refined organic fertilizers refer to commercial organic fertilizers that are factory-produced and do not contain specific fertilizer effect microorganisms.

(7) compound fertilizer refers to fertilizers with at least two specified amounts of nitrogen, phosphorus and potassium, which are made by chemical methods and physical processing.

(8) compound fertilizer refers to compound fertilizer made only by chemical methods.

In addition, now that the types of fertilizers are increasing, there are often all kinds of organic fertilizers and chemical fertilizers in the fertilizer market and farmers. How to apply them together?

(1) the nutrient distribution ratio should meet the needs of crops: the nutrient distribution ratio of nitrogen, phosphorus and potassium mixed with fertilizers should meet the needs of their own crops and soil characteristics.

(2) most chemical fertilizers should be mixed and used now: most chemical fertilizers are salts and have a certain degree of hygroscopicity. After mixing, the hygroscopicity of fertilizers will be further enhanced compared with that before mixing, and most fertilizers can be mixed, but they should be mixed now.

(3) the fertilizer effect can not be reduced or lost after mixing: some fertilizers react after mixing, resulting in nutrient loss. For example, alkaline fertilizers such as plant ash will decompose when mixed with ammonium nitrogen fertilizer, resulting in nitrogen loss; the mixture of phosphate fertilizer and alkaline fertilizer will reduce the solubility of phosphate fertilizer and decrease the fertilizer efficiency.