How to Identify Humic Acid Fertilizer?

Humic acid fertilizer is the most prominent fertilizer on the market. Nowadays, the fertilizer market is very large, many unscrupulous companies are likely to take the opportunity to use fake humic acid fertilizer to cheat customers. How to identify the humic acid fertilizer? True or false? Here to tell you about it.

How to identify the true and false of humic acid fertilizer?

First, check the implementation standards. There are a variety of humic acid products currently on the market but there is no uniform standard. NY / T1106-2010 “water-soluble fertilizer containing humic acid” is the standard book released by Ministry of Agriculture of our country, the rest is the corporate standard. If humic acid is added to the compound fertilizer or bulk blending fertilizer, the humic acid content can only be indicated at the package contents, but the name on the fertilizer package can not be changed, that is, the package must be marked with compound fertilizer or bulk blending fertilizer, but not humic acid compound (bulk blending) fertilizer. At the same time, nitrogen, phosphorus, potassium content of fertilizer must also meet the fertilizer standard.

Second, check the bag mark of humic acid content.

According to the relevant regulations, humic acid fertilizer bags should be clearly marked the content of humic acid. If there is only marked with humic acid words, but not specifically marked with the amount of how much must be taken, it is not standard.

Finally, check the product instructions.

Different crops of different periods, the use of humic acid fertilizer is different. therefore, fertilizer instructions must be comprehensive and detailed. If the description is written roughly, and there is no professional technical staff to guide, it is not recommended to buy.

Identify humic acid fertilizer is good or bad, according to its water-soluble, color, etc. to be judged.

Take the humic acid fertilizer into the water, observe the speed of dissolution and look over whether it is all dissolved and whether there is precipitate. Usually good humic acid fertilizer performance also is good. Pour a small amount of humic acid water-soluble fertilizer in water, if the color is very dark, it may be dyed. If it is humic acid fertilizer granules, you can rub hard by hand. If the color fade or the color is difficult to wash off with water, it may also be dyed. You can also crush the particles to see if the inside and outside colors are uniform dark brown, and if only the outside is black and the inside is white (or other colors), it is also suspected of staining. Special emphasis is that currently there is a kind of fertilizer on the market, it is white particles. Why it is white? Someone said that it is because it is added inside the white humic acid. In fact, such statement is wrong because there is no white humic acid.

Some humic acid fertilizers are added raw materials which is not activated or low degree of activation, and this kind of humic acid fertilizer has low effect. Taking phosphate powder as an example, although the phosphate powder also has phosphorus element, the effect is very slow and poor. It can achieve the best effect only when it is produced into superphosphate. Humic acid fertilizer must be activated before it can achieve its effect. If the humic acid fertilizer price is very low, it most likely be added raw humic acid fertilizer.

The above are ways to identify humic acid fertilizer, we can refer to these methods when we buy humic acid fertilizer.

The article is quoted from: https://www.fert.cn/news/2017/11/03/121430448084.shtml

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