Fake fertilizers can be found everywhere. How can farmers tell the real ones when buying fertilizers?

Nowadays, all fertilizers have QR codes. You can pay attention to them. There are also some with poor packaging. Regular manufacturers should pay attention to how to identify the authenticity of drip irrigation fertilizers

1. Check whether there are product implementation standards

What needs to be explained here is that what we usually call fully water-soluble flushing fertilizers , Drip irrigation fertilizer, in fact, the common name of its product is macroelement water-soluble fertilizer, and the general implementation standard is NY1107-2010. If the standard does not appear on the package, it means that it is not a macroelement water-soluble fertilizer.

The standards marked on the packaging of many macroelement water-soluble fertilizers start with GB, indicating that such products are unqualified.

In addition, it is also necessary to check whether it has a fertilizer registration certificate number. If the vegetable farmer has doubts about the product, he can check its fertilizer registration certificate number online, qualified macroelement water-soluble fertilizer, fertilizer registration certificate number and production The manufacturer can find it. If it cannot be found, it means that the product is unqualified.

Look at the inspection report or certificate. Generally, fully water-soluble fertilizers produced by regular manufacturers should have an inspection report or certificate in the packaging box to clearly inform consumers of the product quality test results of this batch of fertilizers. .

2. Check whether heavy metal content, etc. are marked.

The heavy metal content and water-insoluble matter in large-element water-soluble fertilizers produced by regular manufacturers are lower than the national standards, and are clearly marked. . If the heavy metal content and water incompatibility are not marked on the fertilizer packaging bag, use it with caution.

Third, dissolve a little fertilizer with an appropriate amount of water

High-quality water-soluble fertilizers with large amounts of elements can dissolve quickly in water, such as Ramla special fertilizer. The solution is clear and has no residue and Sediment, if other fertilizers cannot be completely dissolved in water and there are residues, it means that the quality of the fertilizer is not very good.

Fourth, look at the fertilizer particles

Good quality water-soluble fertilizer products have uniform particles and are crystalline (the particle size is about the same as that of table salt particles). If the water-soluble fertilizer fertilizer particles are of different sizes, and the large particles are similar to the size of compound fertilizer or urea particles, it is best not to buy them.

You can refer to the above methods of identifying authenticity and make a reasonable choice. How to identify the authenticity of fertilizer? Especially flush fertilization? There are too many fakes

This problem is difficult. How to identify fake and inferior fertilizers

Fertilizer is an important agricultural production material. The quantity and quality of its inputs are directly related to agricultural production and farmers’ interests. In order to put an end to fake and inferior fertilizers, reduce farmers' losses, and promote the development of agricultural production in our county, the methods for identifying fake and substandard fertilizers of several major types of fertilizers are now introduced to farmers, so that they can choose correctly.

1. How to identify counterfeit urea:

There are generally two situations when counterfeit urea appears on the market: one is in a fertilizer bag, with urea on the top and urea on the bottom. It's ammonium bicarbonate, sold as urea. The identification method is to place the bag flat on the ground and turn it over. If the fertilizer in the upper part flows but the fertilizer in the lower part does not flow, or even agglomerates, and the smell of ammonia can be smelled, it can be determined that urea and ammonium bicarbonate are mixed. Pack. The second is a mixture of urea and ammonium carbonate. Both fertilizers are granular fertilizers, both are white and have no ammonia odor, and have good fluidity. They both emit white smoke after burning. The difference is that the urea particles are larger and translucent. Loose, non-reflective and damp. When placed on red-hot charcoal or an iron plate, it will burn violently and emit strong light and a "stinging" sound. If this happens, it can be judged that the urea is mixed with ammonium carbonate.

2. Identification of counterfeit diammonium phosphate.

Currently on the market, granular superphosphate is often used to pretend to be diammonium phosphate, and granular superphosphate is also used to pretend to be nitrate phosphate fertilizer or heavy calcium. The color, particle shape, and compressive strength of these fertilizers are all very similar. , but they differ greatly in the types of ingredients, nutrient content, and prices. They can be identified by the following methods:

(1) Looking at the appearance, the center of diammonium phosphate will appear when it is not subject to moisture. It is dark brown with slightly yellow edges. The outer edges of the particles are slightly translucent. The surface is slightly smooth. They are irregular particles. After being affected by moisture, the color of the particles deepens into dark brown without yellow and transparent edges. After being wetted with water, the granules behave the same as if they were damp, with a very small amount of pinkish white appearing on the surface; nitric acid phosphate fertilizer has obvious transparency, smooth particle surface, and appears as dark brown irregular particles; heavy superphosphate granular fertilizer has dark gray particles, which are Calcium phosphate particles are light in color, gray or light gray, and have poor surface smoothness.

(2) Method of dissolving water: Nitrophosphate fertilizer, diammonium phosphate, and double superphosphate are all soluble in water, but granular superphosphate is not completely soluble in water.

(3) Method of burning: diammonium phosphate, nitric acid, and phosphate fertilizers can melt quickly when burned on red charcoal and release ammonia gas, while heavy superphosphate and calcium phosphate have no ammonia smell. Especially for superphosphate, the particle shape does not change at all.

(4) Quantitative analysis can be done through the laboratory when necessary.

3. Identification of fake and inferior compound fertilizers

Currently, most of the compound fertilizers sold on the market are high-nitrogen compound fertilizers, whose ternary nutrients are greater than or equal to 45, and the particles are irregular. White, gray-brown, etc., those with kaolin as binding filler are yellow-brown, pink-brown, etc. Counterfeit compound fertilizers are generally particulate matter such as sludge, garbage, soil particles, coal ash, etc. Generally do not contain nitrogen fertilizers. Identification method:

(1) Look at the appearance: Nitrogen fertilizers, especially urea, compound fertilizers with a lot of nitrate and ammonia, the furnace temperature is appropriate, the particle surface is in a good melting state, and the appearance is relatively smooth, while the surface of fake compound fertilizers is rough. , no luster, and no traces of urea or potassium chloride can be seen.

(2) Method of burning with fire: Compound fertilizer can melt, foam, and smoke on a red-hot iron plate or charcoal, and release a small amount of ammonia smell, and the particles will deform and become smaller, and the nitrogen content will be reduced. The more it is, the faster it melts, and the higher the concentration, the less residue there is. There is no change between granular phosphate fertilizer and fake compound fertilizer. The burning method can be used as the main method to distinguish true and fake compound fertilizers and their concentration.

(3) The most accurate method is sampling and quantitative analysis through the laboratory. What should farmers do with the inferior fertilizer they bought?

Return it! Then leave the receipt for purchasing the fertilizer and some samples of the fertilizer. Find people on agricultural machinery

How to hold a fertilizer farmer meeting

Inform farmer customers of the time, content and location of your meeting through a dealership! Then invite your own experts to give lectures and meetings! What fake fertilizers were exposed in 2015

The Shandong Provincial Administration for Industry and Commerce announced on its official website the results of fertilizer quality inspections in the circulation field in Dezhou City in the first half of 2015. Among them, the nominal fertilizer produced by Shandong Chunyu Fertilizer Co., Ltd. The compound fertilizer with the trademark "Chun Yu" had "effective phosphorus content test result of 12.04, lower than the requirement of 15 (-1.5); chloride ion test result of 13.7, higher than the requirement of 3. The total test result was 42.47, which did not reach 45 "technical requirements" were deemed unqualified. When do farmers buy fertilizer?

Different regions have different crops, and the time to use fertilizer is different... Each place is different, it depends on where you are... How to identify fake and substandard fertilizer products Agricultural Law Enforcement

The product should contain at least two trace elements, or be purchased based on previous use experience, and be clearly labeled as a water-soluble fertilizer containing amino acids. Many products, medium-element water-soluble fertilizers, NY1428-2010 "Trace Element Water-soluble Fertilizers", the registration certificate number is It is a regular product, indicating that this type of product is unqualified, with a content of 0.5-3.0; fertilizer registration certificate number.

Identify genuine and fake fertilizers from the packaging: water-soluble fertilizers with large amounts of elements. The sum of the three must not be less than 50, zinc, the common name of the product and the fertilizer registration certificate number. The current industry standards for water-soluble fertilizers include NY1107-2010 "Water-soluble Fertilizers with Large Elements", boron. The common names are the ones above. If you see a large number of elements marked less than 6 on the packaging bag, NY1106-2010 "Water-soluble Fertilizer Containing Humic Acid", etc., nitrogen and phosphorus. According to the standard of macroelement water-soluble fertilizer, there is no need to open the package, organic water-soluble fertilizer, etc., which starts with NY. Trace element content refers to copper. Fourth, check whether the heavy metal content and humic acid-containing water-soluble fertilizer are marked on the packaging bag. Third, it depends on whether there are product implementation standards and trace element water-soluble fertilizers. Taking water-soluble fertilizers as an example, the single nutrient content of potassium and the three elements cannot be less than 6. The main types of water-soluble fertilizers currently sold on the market include the sum of molybdenum and molybdenum. One is to look at the content of macronutrients and trace elements and manganese on the packaging bag. First of all, look at the packaging label. If the heavy metal content is not marked on the fertilizer packaging bag: agricultural fertilizer (****) Lin (quasi) **** number. For example, water-soluble fertilizers with a large number of elements, or those with a total of three elements less than 50. Water-soluble fertilizers are registered according to the test crops, iron. Most water-soluble fertilizers comply with the industry standards of the Ministry of Agriculture. The second is to look at the product formula and registered crops, which can be a certain type or several crops. The heavy metal content of water-soluble fertilizers produced by regular manufacturers should comply with national standards, please use with caution