You really know. Fertilizer supplier How can you tell whether a fertilizer is good or bad? Let’s take a quick look with the editor from Magnesium Nitrate for Agricultural Use!
1. Examine the packaging: The packaging bag of commercial fertilizers must clearly indicate the product name, nutrient composition, trademark, net weight, standard code, manufacturer’s name, factory address, production license number, and fertilizer registration certificate number. If any of these markings are missing or incomplete, the fertilizer may be counterfeit. Pay attention to the sealing. Be especially cautious with fertilizers whose packaging seals show obvious signs of having been opened—such fertilizers may have been adulterated. Check the shape: Nitrogen and potassium fertilizers are mostly crystalline. Phosphate fertilizers are typically block-shaped or amorphous powders; calcium-magnesium phosphate fertilizers are usually powdery, while superphosphate is often porous and block-like. Compound fertilizers generally have relatively uniform particle sizes, smooth surfaces, and are not prone to absorbing moisture and caking. Compound fertilizers with uneven particle sizes, rough surfaces, high moisture content, and a tendency to cake can generally be identified as counterfeit.
2. Simply judge by the odor of the fertilizer. For example, ammonium bicarbonate has a strong ammonia smell. Superphosphate has a sour odor, whereas counterfeit or substandard products have no noticeable smell. However, when waste sulfuric acid is used in the production of superphosphate, it produces a sharp, pungent, and peculiarly sour odor. Such fertilizer is highly toxic and can easily damage or burn crops.
3. Dissolution refers to dissolving fertilizer in water. Take 1 gram of chemical fertilizer, place it into a clean glass tube or other container, and add 10 milligrams of distilled water (or clean, cooled boiled water). Shake thoroughly and observe whether the fertilizer dissolves completely. Nitrogen and potassium fertilizers should all dissolve completely; if turbidity appears, the fertilizer is likely counterfeit or substandard. Superphosphate readily dissolves in water but leaves some residue. Triple superphosphate dissolves in water with little or no residue. Ammonium bicarbonate is highly soluble in water yet has a strong ammonia odor. Calcium cyanamide is insoluble in water and produces bubbles along with an acetylene-like chlorine smell.
The above is what the editor has shared about magnesium nitrate for agricultural use this time. Fertilizer supplier Some methods for identifying fertilizers—hope you can learn a bit more about them.