Ammonium sulfate is also used as a fertilizer (although in much higher concentrations), but it only contains nitrogen but neither phosphorus nor potassium.
作为肥料应用的硫酸铵浓度会更高，但其中只有氮的成分，没有磷或钾。
3
When feeding the moisture-absorbing and moistened ammonium bicarbonate, the most of available fertilizer feeders are liable to make the fertilizer bridging, adhering and blocking up.