人粪尿里含有多种肥分,主要是氮、磷、鉀,尤其含氮素比較多,是庄稼很好的肥料。但是人粪尿如果保存得不好,肥分是很容易跑掉的。因为人粪里的蛋白質态氮素,受微生物作用,会轉变成醯胺,最后变成氨态氮素。人尿里面的尿素等,最后也会轉变成氨态氮素。氨态氮素很容易揮發掉。 Human manure contains a variety of fertilizer, mainly nitrogen, phosphorus and potassium, especially nitrogen-containing more, is a good crop fertilizer. But if the human waste is not well preserved, fat is very easy to run away. Because of human protein in the excretion of nitrogen, by the role of microorganisms, will be converted into amine amine, and finally into ammonia nitrogen. Urea in human urine, etc., will eventually be transformed into ammonia nitrogen. Ammonia nitrogen is very easy to evaporate.