Q: As we all know, the most authoritative and scientific means to identify the composition and content of chemical fertilizers is the product quality inspection report of the national quality inspection department. However, in daily life, is there any simple way to help farmers to identify true and false fertilizers?
A: Farmer friends can consider the following aspects to identify the true and false of fertilizer:
(1) First look at the packaging. According to the national standards for solid chemical fertilizer packaging, chemical fertilizers should be packaged in multi-layer bags or composite bags. The outer bags of multi-layer bags are plastic woven bags, and the inner bags are plastic film bags. The composite bags are generally compounded with plastic woven cloth and film. together. The upper mouth of the fertilizer package should be stitched with a seam of 10 mm; the seam should be made of synthetic fiber. The packaging should not be broken and not lost.
(2) The second look at the bag skin logo. For domestic fertilizers, the name of the fertilizer, the trademark, the specification grade, the net content and the nutrient content should be included in the fertilizer fertilizer bag. The domestic fertilizer should also indicate the manufacturer’s address and batch number, and the implemented fertilizer standards. The imported fertilizer should also indicate the name and address of the importer. . Farmer friends can check the information on the bag.
Q: In addition to the packaging and bag labeling as a reference element for identifying the true and false of fertilizer, is there a relatively simple identification method for fertilizer products?
A: After opening the fertilizer packaging bag, first look at the appearance of the fertilizer, see the color, shape (particles, powder), the size, hardness, uniformity of the particles, whether it is agglomerated. For example, urea has small particles and large particles. Potassium fertilizer has powder and granular content. The compound fertilizer mainly depends on the hardness of the particles and whether the particles are uniform.
Q: It is only a way to identify the true and false fertilizer by appearance. Is there any other simple identification method?
A: Different fertilizer products have different physical and chemical properties. We can also test the true and false fertilizers by using two methods: water soluble and burning odor.
(1) It is soluble in water. The general nitrogen fertilizer, urea, ammonium bicarbonate, ammonium chloride, ammonium nitrate, ammonium sulfate is a fully water-soluble fertilizer. After the fertilizer is placed in water, it is substantially completely dissolved, while the pseudo-urea contains a large amount of insoluble matter.
(2) Flammability and odor. When the fertilizer is burned on the iron piece, the nitrogen fertilizer can be mostly melted, and the ammonium nitrogen fertilizer has an ammonia odor, and only the ammonium carbonate is directly vaporized without melting. Potassium fertilizer does not melt and the particles will beat. Phosphate fertilizer neither melts nor beats. Some fake fertilizers have a pesticide smell.
It should be emphasized that the above simple method for identifying the true and false fertilizers can only be used as an auxiliary means to identify true and false fertilizers. To truly identify true and false fertilizers, it is necessary to pass the examination of the authoritative quality inspection department.
In order to prevent being deceived, farmers must pay attention to the following two points when purchasing chemical fertilizers: (1) When purchasing chemical fertilizers, you should choose well-known brands. Buying fertilizers and farming fields is a year-long plan. You should not buy miscellaneous or fake fake fertilizers for cheaper. (2) Pay attention to the choice of regular sales channels to purchase, choose large dealers with good reputation, strong strength and good reputation, and avoid buying cheap fertilizers from unlicensed mobile traders. Generally speaking, the fertilizer quality of large enterprises with relatively large scale and strong strength and national chain operation is relatively guaranteed.
Expert tips
When identifying true and false fertilizers, first look at the packaging and bag markings of the fertilizer.
After opening the package, you should see the appearance of the product.
It can be identified by dissolving in water and burning.
Buying fertilizers requires choosing well-known brands and formal channels. It is most easy to be deceived when you are cheap.
A: Farmer friends can consider the following aspects to identify the true and false of fertilizer:
(1) First look at the packaging. According to the national standards for solid chemical fertilizer packaging, chemical fertilizers should be packaged in multi-layer bags or composite bags. The outer bags of multi-layer bags are plastic woven bags, and the inner bags are plastic film bags. The composite bags are generally compounded with plastic woven cloth and film. together. The upper mouth of the fertilizer package should be stitched with a seam of 10 mm; the seam should be made of synthetic fiber. The packaging should not be broken and not lost.
(2) The second look at the bag skin logo. For domestic fertilizers, the name of the fertilizer, the trademark, the specification grade, the net content and the nutrient content should be included in the fertilizer fertilizer bag. The domestic fertilizer should also indicate the manufacturer’s address and batch number, and the implemented fertilizer standards. The imported fertilizer should also indicate the name and address of the importer. . Farmer friends can check the information on the bag.
Q: In addition to the packaging and bag labeling as a reference element for identifying the true and false of fertilizer, is there a relatively simple identification method for fertilizer products?
A: After opening the fertilizer packaging bag, first look at the appearance of the fertilizer, see the color, shape (particles, powder), the size, hardness, uniformity of the particles, whether it is agglomerated. For example, urea has small particles and large particles. Potassium fertilizer has powder and granular content. The compound fertilizer mainly depends on the hardness of the particles and whether the particles are uniform.
Q: It is only a way to identify the true and false fertilizer by appearance. Is there any other simple identification method?
A: Different fertilizer products have different physical and chemical properties. We can also test the true and false fertilizers by using two methods: water soluble and burning odor.
(1) It is soluble in water. The general nitrogen fertilizer, urea, ammonium bicarbonate, ammonium chloride, ammonium nitrate, ammonium sulfate is a fully water-soluble fertilizer. After the fertilizer is placed in water, it is substantially completely dissolved, while the pseudo-urea contains a large amount of insoluble matter.
(2) Flammability and odor. When the fertilizer is burned on the iron piece, the nitrogen fertilizer can be mostly melted, and the ammonium nitrogen fertilizer has an ammonia odor, and only the ammonium carbonate is directly vaporized without melting. Potassium fertilizer does not melt and the particles will beat. Phosphate fertilizer neither melts nor beats. Some fake fertilizers have a pesticide smell.
It should be emphasized that the above simple method for identifying the true and false fertilizers can only be used as an auxiliary means to identify true and false fertilizers. To truly identify true and false fertilizers, it is necessary to pass the examination of the authoritative quality inspection department.
In order to prevent being deceived, farmers must pay attention to the following two points when purchasing chemical fertilizers: (1) When purchasing chemical fertilizers, you should choose well-known brands. Buying fertilizers and farming fields is a year-long plan. You should not buy miscellaneous or fake fake fertilizers for cheaper. (2) Pay attention to the choice of regular sales channels to purchase, choose large dealers with good reputation, strong strength and good reputation, and avoid buying cheap fertilizers from unlicensed mobile traders. Generally speaking, the fertilizer quality of large enterprises with relatively large scale and strong strength and national chain operation is relatively guaranteed.
Expert tips
When identifying true and false fertilizers, first look at the packaging and bag markings of the fertilizer.
After opening the package, you should see the appearance of the product.
It can be identified by dissolving in water and burning.
Buying fertilizers requires choosing well-known brands and formal channels. It is most easy to be deceived when you are cheap.
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