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碳酸氢铵(简称碳铵)含氮17%和二氧化碳53.2%,其水溶液呈碱性(pH8.2～8.4)。我国年产碳氨3200～4000万吨,按含氮量折算,约占我国氮素总量半数以上。但碳铵肥效低,利用率仅25～30%。使用中造成碳铵肥效降低的致命弱点是,碳铵分子结构不紧密,化学性质极不稳定,在高温潮湿的环境中,极易吸潮结块,氨大量挥发损失。施用不当氨气挥发,会灼伤禾苗。但碳铵也有许多优点,如早春低温时期碳铵比
Ammonium bicarbonate (referred to as ammonium bicarbonate) containing 17% nitrogen and 53.2% carbon dioxide, the aqueous solution was alkaline (pH8.2 ~ 8.4). China’s annual output of 3200 ~ 40 million tons of carbon ammonia, converted by nitrogen, accounting for about half of China’s total nitrogen. However, low-carbon ammonium fertilizer, the utilization rate of only 25 to 30%. Ammonium bicarbonate fertilizer caused by the use of a fatal weakness is reduced, ammonium bicarbonate molecular structure is not tight, very unstable chemical properties, in high temperature and humidity environment, easy to absorb moisture agglomeration, a large number of volatile ammonia loss. Improper application of ammonia volatilization, burns seedlings. However, ammonium bicarbonate also has many advantages, such as the early spring low temperature ammonium bicarbonate ratio