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从外观上鉴别真假化肥,可以选择三种方法。一是包装鉴别法。1、检查标志:国家有关部门规定,化肥包装袋上必须注明产品名称、养分含量、等级、商标、净重,标准代号、厂名、厂址、生产许可证号标识。如果没有上述标志或标识不完整,则可能是假冒或劣质化肥。2、检查包装袋封口:对包装封口有明显拆封痕迹的化肥要特别注意,出现这种现象有可能是掺假所致。二是形状、颜色鉴别法。1、尿素为白色或淡黄色,呈颗粒状、针状或棱柱状结晶体,无粉末或少有粉末。2、硫酸铵为白色晶体。3、氯化铵为白色或淡黄色结晶。4、碳酸氢铵呈
From the appearance of genuine and fake fertilizers, you can choose from three methods. First, the package identification method. 1, check mark: the provisions of the relevant state departments, fertilizer bags must indicate the product name, nutrient content, grade, trademark, net weight, standard code, name, address, production license number identification. If there is no sign or logo is not complete, it may be fake or inferior fertilizer. 2, check the packaging bag seal: There is a clear seal on the packaging seal fertilizer should pay special attention to this phenomenon may be caused by adulteration. Second, shape, color identification method. 1, urea is white or light yellow, granular, acicular or prismatic crystals, no powder or less powder. 2, ammonium sulfate is white crystal. 3, ammonium chloride is white or light yellow crystal. 4, ammonium bicarbonate was