In recent years, mineral-source humic acid products have attracted attention and are widely used in agriculture, livestock breeding, industry and other fields due to their unique and obvious advantages. It has also greatly promoted the development of these industries. In the previous article “What is mineral source humic acid and the formation process of mineral source humic acid” I explained what mineral source humic acid is and its formation process. Now I will solve a more common problem for you – how to judge the quality of mineral source humic acid products.
Judging the quality of mineral humic acid products is mainly based on the following aspects:
1. Types of raw material sources: The raw materials are generally peat, lignite, and weathered coal. Because peat is protected by the state and it is difficult to extract humic acid, lignite has become one of the main raw materials for producing humic acid. Weathered coal can also be used as a raw material for extracting humic acid. The quality of humic acid extracted from high-quality weathered coal is still acceptable.
2. Production process: Mineral humic acid is originally a weakly acidic organic matter. In production, strong alkali such as potassium hydroxide, sodium hydroxide or ammonia water is usually used to react with humic acid, and is formed into flakes, granules, etc. through various processing techniques. Crystalline and powder form can better retain the active ingredients of humic acid. There is no deep connection between the quality of mineral humic acid and its appearance.
3. Product solubility or anti-flocculation: look at the water solubility of the product and the degree of stratification when placed in water. A good mineral humic acid product should have good water solubility so that it can be more easily absorbed and utilized by the soil.
4. Humic acid content and quality: High-quality mineral-source humic acid products usually contain higher levels of humic acid, and the humic acid quality is good. High-quality humic acid has better effects on soil improvement and plant growth promotion.
5. pH value: The pH value of humic acid products is also an important evaluation index. A high-quality product should have an appropriate pH value, which will not have an overly acidic or alkaline impact on the soil, and will be conducive to the activity of soil microorganisms.
6. Compound stability: not only the mixture with N, P, and K, but also the ability to solidify microorganisms and heavy metals in soil.
Taking the above factors into consideration, you can better judge the pros and cons of mineral-source humic acid products and choose products that suit your needs.