对化肥进行定性和定量分析．结果准确，但需要一定时间和设备，而对化肥作简单处理后进行观察，加以识别，是一种简捷可取的应急方法。豆、磷技一接和磷四二饬磷四一接比较稳定，在空气中不易分解；而磷校二控稳定性较差，在高温潮湿环境中易分解，有氨味。分别取少量肥料样品 Qualitative and quantitative analysis of fertilizers. The result is accurate, but it takes a certain amount of time and equipment. After a simple treatment of chemical fertilizers and observation and identification, it is a simple and convenient emergency method. Beans, phosphorus and then connected with a phosphorus four two 饬 phosphorus four one more stable, not easy to break down in the air; and phosphorus school two control stability is poor, easy to decompose in high temperature and humidity environment, ammonia smell. Take a small amount of fertilizer samples