在我省所用的氮肥品种中,碳酸氢铵占总用量的三分之一。碳酸氢铵化学性质不稳定,温度增高氨损失增大,湿度增加又易潮解造成氮素损失,生产上常因施用不当使碳铵肥效降低。合理施用碳铵提高碳铵的利用率,既可降低农业成本,又利于增产。为此,特设置本试验。 In the nitrogenous fertilizer varieties used in our province, ammonium bicarbonate accounts for one third of the total amount. The chemical nature of ammonium bicarbonate is unstable, the ammonia loss increases with the increase of temperature, and the loss of nitrogen is easily caused by the increase of humidity. The production of ammonium bicarbonate is often reduced due to improper application in production. Rational use of ammonium bicarbonate to improve the utilization of ammonium bicarbonate, both to reduce agricultural costs, but also conducive to increasing production. To this end, special set the test.