农家肥虽然比化学肥料有很多优势，但也存在着有效成分含量低、肥效迟缓的缺点。如果给农家肥加一点“添加剂”，不仅能有效地防止肥分挥发流失，而且还可使肥效成倍地提高。人粪尿添加硫酸亚铁。在每百公斤人粪尿中加硫酸亚铁500~600克，可使人粪尿中碳酸铵转化成性质稳定的硫 Although farmyard manure has many advantages over chemical fertilizers, there are also shortcomings of low active ingredient content and slow fertilizer efficiency. If you add a little fat “additives”, not only can effectively prevent the volatile loss of fertilizer, but also can double the efficiency of fertilizer. Human waste added ferrous sulfate. In every one hundred kilograms of human excrement plus ferrous sulfate 500 ~ 600 grams, can make the human excrement of ammonium carbonate into stable sulfur