三料磷肥和磷酸铵大多是进口的,商品为褐色或灰色颗粒,施用方便。这两种磷肥中的磷素都是水溶性的有效成份,肥效很高,深受广大农户欢迎。三料磷肥和磷酸铵在施用方法和用量上有很大差别。由于包装、运输、供应等方面的原因,有时失去标签,不易区别,往往造成经济上的损失和施用上的错误。为了快速识别这两种肥料,可采取下述方法加以鉴别:将一小捏肥料放在烧红的铁片上,肥料颗粒无任何变化的是三料磷肥,而融 Sanyuan phosphate fertilizer and ammonium phosphate are mostly imported, the product is brown or gray particles, easy to apply. The two kinds of phosphorus in the phosphorus are water-soluble active ingredients, high efficiency, welcomed by the majority of farmers. Sanfen phosphate and ammonium phosphate in the application methods and dosage are very different. Due to packaging, transportation, supply and other reasons, sometimes lose the label, not easy to distinguish, often resulting in economic losses and mistakes in the application. In order to quickly identify these two kinds of fertilizers, can be identified as follows: A small pinch of fertilizer on the red iron pieces, fertilizer particles without any change is the three fertilizer, and financial