Can compound fertilizer be used as water-soluble fertilizer (can compound fertilizer be dissolved in water and then drip-irrigated)

Can compound fertilizer be made into water-soluble fertilizer?

Compound fertilizer and water-soluble fertilizer are two different fertilizers. Compound fertilizer is chemically synthesized, while water-soluble fertilizer is physically mixed. Compound fertilizer has process limitations, low content, and relatively backward process .

Water-soluble fertilizers have good water solubility, high content, and good effect . Today I will explain to you how to use compound fertilizers and water-soluble fertilizers.

There are many main processes for compound fertilizers on the market now, including drum granulation, disc granulation, spray granulation, ammoniation granulation and high tower granulation.

The most water-soluble compound fertilizer is high tower granulation. When using it, no matter what kind of granulation, a certain amount of fillers and adhesives will be added.

These processes have limited the water solubility of compound fertilizers, and there will be a lot of impurities in the aqueous solution after the compound fertilizers are melted. Drip irrigation of compound fertilizers is not feasible, as it is easy to clog the nozzles.

However, compound fertilizer can be dissolved in water and directly applied to the soil during flooding. However, the absorption and utilization rate of compound fertilizer is low when used in this way.

Although the process of water-soluble fertilizer is relatively simple, the raw materials are relatively good and can be completely water-soluble. When the water-soluble fertilizer is melted, the solution can be clear to the bottom.

Only fertilizers whose solution is crystal clear can be called water-soluble fertilizers. No matter what kind of water-soluble fertilizer it is, it is suitable for drip irrigation, direct flushing, and foliar spraying.

Both compound fertilizer and water-soluble fertilizer have their own characteristics. Although compound fertilizer is less water-soluble, it is most suitable for use as base fertilizer to provide nutrients to the root system for a long time.

The effect of compound fertilizer generally lasts for about 60 to 90 days. Water-soluble fertilizer is a quick-acting fertilizer with good water solubility and is easily absorbed by plant roots. Its effect generally lasts for about 20 to 25 days.

In terms of drip irrigation, conventional compound fertilizer products are not recommended for use as water-soluble fertilizers because they dissolve slowly, contain a large amount of insoluble matter, and can clog the nozzles if sprinkler or drip irrigation equipment is used.

After all, compound fertilizer products dissolve slowly. Today's compound fertilizer products all have a certain slow-release or controlled-release capability. Some are achieved through coating technology, while others are achieved by adding other media to achieve the ability of fertilizers to slowly dissolve and release nutrients.

In summary, after comparison, compound fertilizer is best used as base fertilizer and cannot replace water-soluble fertilizer for topdressing . Simply put, compound fertilizer is suitable for base fertilizer, and water-soluble fertilizer is suitable for topdressing .