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Water-soluble fertilizer is a nutrient supplement that can be completely dissolved in water and is often used for irrigation or foliar spraying. It contains abundant essential elements for plant growth, such as nitrogen, phosphorus, potassium, etc., and trace elements are also included. This type of fertilizer is easy for plants to quickly absorb and utilize, improve fertilizer utilization efficiency, and promote plant growth and development.

Foam may be generated during the dissolution of water-soluble fertilizers, which is usually caused by the following factors:

1. Surfactants: Such substances are added to some water-soluble fertilizers to reduce the surface tension of the liquid, thus causing foam to form.

2. Gas release during dissolution: Some ingredients may release gas when they dissolve, forming bubbles.

3. Stirring or mixing: When stirring or mixing fertilizers, air is mixed into the liquid, which also causes foam.

Water-soluble fertilizer defoamers are additives that reduce or eliminate foam on the surface of the liquid. They have the following advantages:

1. Improve work efficiency: Reducing foam helps improve irrigation or spraying efficiency and avoids foam interfering with operations.

2. Improve product quality: Defoamers maintain liquid uniformity, ensure uniform distribution of fertilizer active ingredients, and improve crop absorption.

3. Reduce losses: Excessive foaming can easily lead to fertilizer waste. Defoamers help reduce fertilizer losses and improve economic benefits.

4. Enhance stability: Defoamers improve the stability of fertilizer solutions and prevent precipitation or stratification.

Water-soluble fertilizers are popular for their high efficiency and convenience. Only by understanding the causes of foaming and making good use of water solvents can the fertilizers be fully utilized.