There are many types of chemical fertilizers, and the letters on the fertilizer bags are also diverse. Many farmers’ friends don’t know much about the letters on the fertilizer bags. I don’t know what the letters mean. Today’s small series will check out the common fertilizer bags for you. What do those letters mean?

Common fertilizer package letter summary

HNK

In the process of using chemical fertilizers, we sometimes see some words on the market that are marked with HNK on the fertilizer bag. After consulting the relevant materials, there is no such fertilizer. Usually, the compound fertilizer we encounter is labeled with NPK, N for nitrogen, P for phosphorus, P2O5, and K for potassium, expressed as K2O.

2. TE

TE means that the fertilizer contains trace elements. In fertilizer production, manufacturers often describe in the technical manual what the content of trace elements in fertilizers is, and what form. The added trace elements are boron, iron, zinc, copper, and molybdenum, among which the chelating trace elements are optimally added.

For example, balanced water soluble fertilizer: 20-20-20+TE. It means that the total nitrogen content in this water-soluble fertilizer is 20%, the phosphorus pentoxide content is 20%, the potassium oxide content is 20%, and TE means that the fertilizer contains trace elements.

3. EM

EM is a complex flora, which should be very common for this letter, and the EM microbial agent is marked on the bag. It is mainly composed of several large microflora and plays a big role in various microorganisms. Its core function is mainly Leading photosynthetic bacteria and Lactobacillus acidophilus. Its composition includes:

(1) Photosynthetic bacteria

It can use the solar heat received by the soil or use ultraviolet energy as the energy source to separate the hydrogen sulfide from the soil and the hydrogen in the hydrocarbon. The harmful substances are harmless substances, which are the main force for fertile soil and the growth of animals and plants.

(2) Lactic acid bacteria

Lactic acid bacteria (anaerobic type), which mainly releases lactic acid based on the sugar produced by the photosynthetic bacteria yeast. It converts the decomposed organic matter into effective nutrients for animals and plants, which can inhibit the proliferation of pathogenic bacteria caused by continuous cropping disorders.

(3) Yeast group

Yeast (aerobic type) uses an amino acid, a saccharide, and other organic substances to produce an activated substance that promotes cell division by fermentation.

(4) Gram-positive actinomycetes (aerobic)

It takes amino acids, nitrogen and the like from photosynthetic bacteria as a substrate to produce various anti-biomass, vitamins and enzymes, which can directly inhibit pathogenic bacteria. It can enhance the resistance and immunity of plants and animals to various diseases.

(5) Filamentous flora of the fermentation system (animality)

It is mainly composed of Aspergillus used in fermenting alcohol, and it can coexist with other microorganisms, especially for the formation of esters in soil.

4. HFK

After relevant information, the meaning of this letter was not found. Xiaobian thinks that it may be the exclusive fertilizer of some manufacturers, or some small manufacturers to carry out the edge ball fertilizer. If you see this letter when you buy fertilizer, be cautious. It is best to go to a regular farmer's shop to buy fertilizer and safety insurance.

5. HAK

HAK is a potassium humate, and occasionally a compound fertilizer with the HAK letter printed on the market is seen. In fact, it is a compound fertilizer containing potassium humate. The main function is to prevent the soil from being lost with water, and also to prevent the fixation of potassium in the viscous soil because it has the function of absorbing and storing potassium ions.

In addition, potassium humate or low-molecular humic acid such as fulvic acid has a dissolution effect on minerals such as potassium silicate and potassium feldspar, which can effectively alleviate potassium release and increase potassium content.

6. HA

HA is humic acid. Most of the humic acids in the market contain yellow humic acid, black humic acid and brown humic acid. Among them, yellow humic acid has a regulating effect, which is similar to a growth regulator, and has the effect of promoting and expanding stomata for crop growth.

In addition, yellow humic acid and potassium oxide extracted from humic acid can be made into potassium fulate. According to current research, the fertility of soil is largely derived from the content of humic acid.

7. FA

FA is fulvic acid, which is a plant growth regulator, which can promote plant growth, and can effectively control the openness of crop leaf stomata, and has a great effect on drought resistance. It can also improve the plant's resistance to stress, greatly improve the plant's yield and quality, and it can also be mixed with some non-alkaline pesticides, with synergistic effects.

8. TM and R

TM is a trademark that is being accepted. As long as it is accepted, it will be successful. Others cannot use it. R is accepted successfully and cannot be used by others.

Fertilizer purchase pay special attention to the following points

When buying fertilizer on the market, the general compound fertilizer is labeled N, P2O5, K2O. If you encounter such a mark, you should be very careful.

For example, some fertilizers are marked with compound fertilizer on the package, but in the column of total nutrients, it is labeled: N-P2O5-Kom or N-P2O5-HAK, and maybe the last one is something else, but It is not K2O.

In the market, some composite fertilizers are marked with the word “Kom” on the outer packaging, which is generally understood to contain potassium fertilizer, which is said by the manufacturer or dealer. But professionals don't think so. "Kom" has nothing to do with potash. Kom is just a soil conditioning substance. So if you encounter such fertilizer, you should pay attention.

The above is the explanation of the common letters on some fertilizer bags that are common when you buy fertilizer. How many brands have you bought? Have you seen several letters? What other letters did not appear above? Welcome to share the message.

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