碳酸氢铵肥料因肥效期短、易挥发、氮素利用率低、易结块等缺点 ,使其生产和利用受到很大的影响 ;在其生产过程中加入氮素稳定剂ＤＣＤ有机化合物后成为长效碳铵 ,则可克服普通碳酸氢铵的上述缺点 ,肥效期延长到 6 0～ 70ｄ ,氮素利用率提高 10 %,年贮存损失降至 2 %～ 5 %,从 Ammonium bicarbonate fertilizer due to short effective period, volatile, low nitrogen utilization, easy caking and other shortcomings, its production and utilization are greatly affected; in its production process by adding nitrogen stabilizer DCD organic compounds become Long-acting ammonium bicarbonate can overcome the above shortcomings of ordinary ammonium bicarbonate, the fertilizer period is extended to 60 ~ 70d, nitrogen utilization rate increased by 10%, annual storage loss reduced to 2% to 5%, from