Liquid Amino Acid Advantage For The Crops

Classification of amino acid water-soluble fertilizers

There are various classifications of amino acid water-soluble fertilizers. According to the product form, they can be divided into amino acid liquid water-soluble fertilizers and amino acid solid water-soluble fertilizers. According to the registration standards, they can be divided into amino acid medium-element water-soluble fertilizers and amino acid trace-element water-soluble fertilizers.

There are more ways to classify amino acids. According to the different optical activity of amino acids, they can be divided into L-amino acids and D-amino acids. According to the different sources of amino acids, they can be divided into animal-derived amino acids, plant-derived amino acids and microbial-derived amino acids.

(I) Classification by product form

At present, according to the amino acid registration standards, amino acid water-soluble fertilizers are divided into solid amino acid water-soluble fertilizers and liquid amino acid water-soluble fertilizers. Solid amino acid water-soluble fertilizers are mainly in the form of powder or granules, and generally require a moisture content of less than 4.0%.

Solid amino acid water-soluble fertilizers are generally produced by blending or drying. The blending method is to directly blend or granulate the powdered amino acid raw materials with the nutrient raw materials. The drying method is generally to prepare the amino acid liquid water-soluble fertilizer into powder or granulate after drying and enrichment. The drying methods mainly include spray drying and freeze drying. Solid amino acid water-soluble fertilizers have low water content and relatively smaller volume, making them more suitable for long-term storage and long-distance transportation. However, powdered water-soluble fertilizers often have problems such as moisture absorption and agglomeration, easy flatulence when stored in a hot environment for a long time, easy corrosion of packaging materials, and inconvenient application.

Liquid amino acid water-soluble fertilizers include clear liquid type and suspended type. Both are similar in form and are aqueous products. Clear liquid fertilizers are clear and transparent, free of impurities, and have a low nutrient content. They generally use key medium and trace nutrients required by crops and are suitable for various irrigation systems. Suspended fertilizers are highly concentrated liquid fertilizers. The nutrients are not completely dissolved in the liquid phase. They are mainly suspended in a colloidal system with the help of suspension aids (common ones include attapulgite, bentonite, kaolin, etc.) and surfactants. The basic nutrient raw materials are either water-soluble or completely insoluble (such as iron oxide, magnesium oxide, etc.).

Although liquid fertilizers are not easy to transport, water-based fertilizers are the preferred fertilizer for manual and irrigation equipment fertilization because of their ready-to-use nature and ability to dissolve without stirring. The significant advantages of water-based fertilizers are mainly reflected in the following aspects.

1. No damage to the roots and seedlings

Water-based fertilizers are easily evenly distributed in the soil after application, unlike solid fertilizers which form local concentrated nutrient concentrations and burn the roots and seedlings.

2. Clean production environment

The production of water-based fertilizers is mainly a dissolution and polymerization process, and there is no problem of emission of dust, smoke, wastewater or waste residue.

3. Quality consistency

Any drop of water-based fertilizer solution contains all the same ingredients. This feature is very beneficial for the addition of trace elements: solid granular fertilizers are usually difficult to mix macroelements and trace elements evenly.

4. Quality inspection is simple and easy

The quality of water-based fertilizers is highly uniform and can usually be monitored by measuring their specific gravity and pH value, which are very easy to determine.

5. Easy to use and high utilization rate

It can be used for spray irrigation, drip irrigation or manual irrigation, and can be mixed with pesticides, fungicides and herbicides and mixed evenly; it is easy to use, cost-effective and effective. The utilization rate of water-based fertilizer is as high as over 90%, while the utilization rate of solid fertilizer is generally only 30%~40%.

6. Develop functional fertilizers

It is convenient to add technical materials, plant growth regulators, rare earth elements or microorganisms into liquid fertilizers, making it easy to develop multifunctional fertilizers.

7. No moisture absorption and caking problems

It is easy to add some deliquescent materials, such as humic acid, amino acids, integrated trace elements, etc. into water-based fertilizers, while these materials are difficult to add into solid fertilizers.

Liquid fertilizer is the development trend of the world fertilizer industry today. At present, the annual liquid fertilizer consumption in the United States accounts for more than 68% of the total fertilizer consumption: almost all liquid fertilizers are used in Israel's fields (conservatively estimated to be 80%~90%): Australia, France, Germany, Spain, Romania and other countries are all countries that use liquid fertilizers extensively.