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碳酸氢铵(以下简称碳铵)是我省一种主要的氮肥。它具有生产简单、肥效好、成本低、施用后无残留酸根,因而对土壤没有不良影响等优点。但碳铵的化学性质不稳定,气温在20℃时,即开始挥发,温度超过30℃时,特别是在潮湿的环境中挥发速度更快。因此,碳铵在运输、贮存和施用过程中都能引起挥发损失。据研究,碳铵因为施用不当所造成的损失是十分惊人的:在撒施的情况下,肥料利用率只有20—30％,我省将近50个碳铵工厂,年产量约为20万吨,每年损失的碳铵约为14—16万吨。所以,合理施用碳铵,对促进农业丰收,降低生产成本有着重要的意义。
Ammonium bicarbonate (hereinafter referred to as ammonium bicarbonate) is a major nitrogen fertilizer in our province. It has the advantages of simple production, good fertilizer efficiency, low cost, no residual acid root after application and no adverse effect on soil. However, the chemical nature of ammonium bicarbonate instability, the temperature at 20 ℃, that is, began to evaporate, the temperature exceeds 30 ℃, especially in humid environments volatile faster. Therefore, ammonium bicarbonate can cause loss of volatility during shipping, storage and application. According to the research, the loss caused by the improper application of ammonium bicarbonate is quite alarming: in the case of spreading, the fertilizer utilization rate is only 20-30%, nearly 50 ammonium bicarbonate plants in our province and the annual output is about 200,000 tons, The annual loss of ammonium bicarbonate is about 14-16 million tons. Therefore, the rational use of ammonium bicarbonate, to promote agricultural harvest, reduce production costs is of great significance.