觀guan察cha顏yan色se和he形xing態tai，磷lin肥fei的de顏yan色se應ying該gai是shi灰hui白bai色se，形xing態tai是shi粉fen末mo狀zhuang，如ru果guo顏yan色se是shi白bai色se或huo黃huang色se，可ke能neng是shi因yin為wei酸suan處chu理li不bu完wan全quan，其qi含han磷lin量liang低di。聞wen氣qi味wei
，磷lin肥fei應ying稍shao有you酸suan味wei
，如ru果guo無wu此ci味wei，則ze說shuo明ming在zai生sheng產chan過guo程cheng中zhong使shi用yong硫liu酸suan量liang不bu足zu，反fan應ying不bu完wan全quan，其qi有you效xiao成cheng分fen含han量liang低di
；如ru果guo酸suan味wei過guo濃nong，說shuo明ming遊you離li酸suan含han量liang過guo高gao
，其qi肥fei效xiao低di，並bing且qie施shi用yong以yi後hou會hui抑yi製zhi土tu壤rang中zhong微wei生sheng物wu的de活huo動dong，燒shao壞huai作zuo物wu的de苗miao根gen，造zao成cheng種zhong子zi不bu發fa芽ya等deng後hou果guo。

 

    磷肥的水分含量一般為8%～14%，yongshoumoyihouganjiaoliangshuang
，danwushuiji。ruguoyongshouniehouchushui，zebiaomingqishuifenhanliangguogao，cizhonglinfeidezhiliangjiucha。ruguoyongshoumoqilaisigantu，shuomingsuanchulibuchedi
，qiyouxiaochengfenhanliangdi。chouyanghuayan
，tongguoyouguanbumenjinxingchouyanghuayan，quedinglinfeideyoulie。