识别化肥的简单方法可以概括为五个字“看、摸、嗅、烧、湿”。一看包装。正规厂家生产的化肥外包装规范,注有商标、产品名称、净重、厂址等。假冒伪劣化肥的包装粗糙,信息标识不清,印刷质量差。二看粒度。氮肥(除石灰氮外)和钾肥多为结晶体,磷肥多为块状或粉末状的非晶体。三看颜色。氮肥(除石灰氮外)几乎全为白色,钾肥为白色或略带红色。二摸质感。将肥料放在手心用力握住或按压转动。利用这种方法辨别磷酸二铵较为有效,抓一把肥料用力握几次,有“油湿”感的即为正品,干燥的则很可能是假冒的。三嗅气味。通过肥料的特殊气味来判断。如碳酸氢铵有强烈氨臭味;硫酸铵略有酸味;过磷酸钙有酸味。而假冒伪劣肥料气味不明显。四是将化肥样品加热或燃烧。碳酸氢铵经过燃烧可直接分解并产生大量白烟,有强烈的氨味,无残留物; A simple way to identify fertilizers can be summarized as five words “look, touch, smell, burn, wet.” A look at the packaging. Regular manufacturers of fertilizer packaging specifications, note the trademark, product name, net weight, site address. The packaging of fake and shoddy fertilizers is rough, the information is not clear, and the printing quality is poor. Second, see the granularity. Nitrogen (except lime nitrogen) and potassium are mostly crystalline, mostly phosphorus-based bulk or powder amorphous. Third look at the color. Nitrogen (except lime nitrogen) is almost all white, potassium is white or slightly red. Two touch texture. Put the fertilizer in your palm and hold it firmly or press it. Use this method to identify diammonium phosphate is more effective, grasping a fertilizer force grip several times, there is “oil wet ” sense is authentic, dry is likely to be fake. Three sniff smell. Judge by the special smell of fertilizer. Such as ammonium bicarbonate has a strong ammonia odor; Sour slightly acidic; SSP has sour. The fake and shoddy fertilizer odor is not obvious. Fourth, heating or burning fertilizer samples. After burning ammonium bicarbonate can be directly decomposed and produce a large number of white smoke, a strong ammonia flavor, no residue;