Fertilizer, an essential element for high crop yield, can improve soil properties and plant growth, thereby increasing yield and improving quality.
Although the use of fertilizer is large, but the fertilizer is rich in types, the quality is different, fake and shoddy fertilizer floods the agricultural consumer market, flooded.
Counterfeit fertilizer traders are deeply tempted by high operating profits, resulting in a large amount of low-quality fertilizer flowing into the market, which is a disaster for grassroots agricultural producers.
These fake and inferior fertilizers can not supplement the nutrients in the process of plant growth, and the deficiency of nutrients is frequent, and may also harm the plant and cause economic losses.
In order to avoid the purchase of fake and inferior fertilizers into the agricultural materials market, delay the normal order of agricultural production, it is necessary to understand the use of fertilizers, fertilizer counterfeiting technology and identification methods.
Pseudofertilizer characteristics
As long as there is a slight negligence, it may become an old turtle in the urn, be slaughtered fiercely, and become a victim of the fake fat industry chain.
Falsely labeled nutrient content. High nutrient content is the key to obtaining high fertilizer efficiency, and national standards for nutrient content vary for different types of fertilizers.
Some fertilizer manufacturers falsely standard fertilizer nutrient content to make it meet or even exceed the standard regulations, some calculate the nutrient content of medium and trace elements, confuse the public, win the trust of consumers, and some even use expired fertilizers.
Boasting of fertilizer efficacy. The purpose of fertilizer is to supplement nutrients and avoid the lack of nutrients during the growth period of plants.
Common problems have no actual efficacy, but promote drought resistance, disease resistance, there are names containing Quan, Wang, Bao and other words that obviously do not meet the requirements, useful enterprise standards counterfeit national standards, with domestic fertilizer pretending to be imported fertilizer.
Mixed fertilizer, fake fertilizer. Choose fertilizers with similar appearance but different quality, and mix low-end and cheap fertilizers with genuine high-specification fertilizers, in an attempt to deceive consumers with the method of repairing plank roads in the open and darkening warehouses to obtain higher profits.
For example, urea mixed with ammonium sulfate, diammonium phosphate mixed with magnesium sulfate, and potassium sulfate mixed with calcium carbonate, all of which are commonly used by counterfeit companies to fake high-quality fertilizer methods, and it is difficult to distinguish the real from the fake with the naked eye.
Identification of packaging
Fertilizer packaging is the most intuitive feeling of consumers, and it is also the most basic link in the counterfeiting industry chain, and consumers should be able to distinguish through price and packaging.
Observe the selling price. The higher the quality, the higher the selling price, and conversely, the lower the selling price of the fertilizer.
If the sales price is much lower than the market sales price, and all kinds of gifts are also included, even if you see rave reviews, you must be wary of buying shoddy products.
Observe the quality of the packaging. The fertilizer produced by regular manufacturers has a systematic and complete packaging line, which can ensure that the packaging bag is completely sealed, and the packaging bag is unpacked, which may be mixed and faked.
The handwriting on the package should be clearly printed, so that the relevant introduction of the fertilizer can be displayed correctly, and there are no errors, omissions, typos and unclear expressions.
Observe the package instructions. For fertilizer packaging, the relevant departments require that the name of the fertilizer, production address, contact information, nutrient content, production standards, etc. be clearly marked, and if the information is not perfect, it may be fraudulent.
Discern quality
Quality identification, which has higher requirements than packaging identification, is for the identification of the physical and chemical properties of fertilizers, including looking, touching, burning, dissolving and testing.
Look at the appearance. The appearance of fertilizer is a direct trait manifestation, and the appearance of different types of fertilizer is different. Such as nitrogen fertilizer, urea is translucent colorless and odorless particles, with no reflection on the surface;
Phosphate fertilizer and general calcium are mostly dark gray and gray-white, in a loose state, exuding a sour taste, while potassium fertilizer, the particle size tends to be the same, and it is a white crystal particle with high smoothness.
Feel the touch. The raw materials and process levels of the fertilizer processing process are different, and the state of the fertilizer is different when you use your hands to feel it, which can reflect the smoothness, hygroscopicity and fluidity of the true and false indicators.
Common fertilizers, such as urea, are dry to the touch, no dampness, smooth and loose, and general calcium feels heavy to the touch, greasy and not frivolous, and feels very cool.
Burn performance. When the fertilizer is placed on an iron plate and a flame, there is a difference in the state it shows. When urea is burned by fire, it can melt quickly, and white smoke and ammonia odor will be emitted;
The potash granules are placed on the iron plate, and the burning process can make a faint crackling sound, but it does not melt, and burns when it is fired, showing a light purple flame.
Smell the smell. After the deep processing process, the smell that chemical fertilizers can emit has its own characteristics, and the analysis of the taste of fertilizers can distinguish the true from the fake.
Real urea has no taste under normal conditions, improper storage, and ammonia smell when encountering humidity and high temperature; phosphate fertilizer has a sour taste, no acid indicates that the active ingredient is low, and excessive acid indicates that the free acid content is high, and it is easy to burn the root system.
Dissolution reaction. Select a fertilizer sample, place it in water, observe the reaction between fertilizer and water, and distinguish whether there is precipitation and flocculent residue.
If the solubility of potassium fertilizer in water is strong, there are no impurities after stirring, it is true potassium fertilizer that can be dissolved into water, and there are impurities that are unqualified potassium fertilizer, phosphate fertilizer, and some fertilizers that can be dissolved in water are genuine.
Measure the content. If it is difficult to distinguish the authenticity of the fertilizer, it cannot be identified by a simple method, or it is necessary to show the relevant testing certificate, the sample fertilizer should be sent to a fixed testing institution.
This kind of detection can accurately determine the authenticity of fertilizer, with high authority, but the disadvantage is that the detection cycle is long, time-consuming and laborious, and the cost is too high.
Therefore, counterfeit and shoddy fertilizers are prevalent, and businesses that make and sell counterfeit fertilizers take advantage of the psychology of grassroots producers to be greedy for cheapness, sell cheap and low-quality fertilizers, and delay agricultural work.
Moreover, the most noteworthy thing is that the fertilizer effect is cyclical, when it is found that the fertilizer is ineffective, the merchants who sell fake and shoddy fertilizers have gone to the empty building, and there is no way to defend their rights, so they can only eat Coptis chinensis dumbly.
Then the purchase of fertilizer, to master the basic method of distinguishing the true and false fertilizer, choose a regular, high brand reputation of agricultural stores, do not go to the business hours of short, poor business stability of the store, online purchase of agricultural materials to choose reliable merchants.