近年来,我省化肥工业得到迅速发展,对促进农业增产起着重要作用。但是,化肥不论在数量、质量和品种上,都远不能满足农业增产的需要。我省化肥厂生产的基本上是碳铵或氨水。碳铵是一种性质不稳定、容易挥发的化肥.因搬运、贮存、保管不善、施肥方法不当,肥份损失很严重。若用粉状碳铵撒施被庄稼利用的氮素一般在30％左右, In recent years, the rapid development of fertilizer industry in our province has played an important role in boosting agricultural production. However, fertilizers are far from meeting the needs of agricultural production in terms of quantity, quality and variety. Fertilizer plant in our province is basically ammonium bicarbonate or ammonia. Ammonium bicarbonate is a kind of chemical fertilizer which is unstable in nature and easy to volatilize.As a result of improper handling, storage and storage, improper fertilization methods, the loss of fertilizer is very serious. If the use of powdered ammonium bicarbonate is crop utilization of nitrogen is generally about 30%