Production and application of water soluble fertilizer

September 23, 2020

Definition of water soluble fertilizer
The broad-based water-soluble fertilizer refers to a large amount of elemental water-soluble fertilizer, water-soluble compound fertilizer, and water-soluble fertilizer and organic water-soluble fertilizer specified by the Ministry of Agriculture.

In the narrow sense, water-soluble fertilizer refers to a multi-element fertilizer or a functional organic compound fertilizer that is completely and rapidly dissolved in water, especially the water-soluble fertilizer product specified by the Ministry of Agriculture industry standard.

Characteristics of water soluble fertilizer
Product features: limited water insoluble content; high degree of compounding, complete nutrient types; rich product range.

Application characteristics: integrated water and fertilizer, easy to use, safe, labor saving; nutrient forms are diverse, fertilizer utilization is high; fertilizer types are selected according to the application method.

Classification of water soluble fertilizer
According to the physical form, it is divided into solid water soluble fertilizer and liquid water soluble fertilizer.

According to the registration requirements, it can be divided into: NY1107-2010, a large amount of elemental water soluble fertilizer; NY2266-2012, medium amount of elemental water soluble fertilizer; Y1429-2010, containing amino acid water soluble fertilizer; NY1428-2010, trace element water soluble fertilizer; NY1106-2010, including Humic acid water soluble fertilizer.

According to the type of active substance, it is divided into natural active compounds, natural plant growth regulators, and functional microorganisms.

Solid water soluble fertilizer is divided into physical mixing and chemical synthesis. The raw materials for production are elemental fertilizers, compound fertilizers and some synergists. The key factors in the production of solid water-soluble fertilizers are the screening of raw materials and the selection of auxiliary substances. The choice of raw materials determines the quality and physicochemical properties of the products, including the grade of raw materials, nutrient types and content, which affect the quality of fertilizers.

In recent years, international solid fertilizers have been increasingly replaced by composite liquid fertilizers. More than 40% of all chemical fertilizers sold in the United States are liquid fertilizers; more than 30% of Russia's liquid fertilizers; Israel's liquid fertilizers account for more than 90%. With the promotion of water and fertilizer integration technology and the rapid development of water-soluble fertilizers, China's liquid fertilizer industry is also developing rapidly.

Liquid water soluble fertilizer has the advantages of energy saving, environmental protection, convenient application, direct absorption and precise fertilization. Its development has the characteristics of speciality, versatility and high nutrient concentration. The selection of additives in the production process is particularly important, including three major categories: anti-crystallization agents, stabilizers, and synergists.

The most scientific application method of water soluble fertilizer is to use water and fertilizer integration technology.
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