碳酸氢铵(简称碳铵)是我国当前生产最多、施用最广的一个氮肥品种,由于碳铵(粉状)容易吸湿、分解挥发。在运输、贮存和施用过程中,若措施不当,氮肥的一部分甚至大部分,往往被挥发,并因硝化—还原作用而流失,通常被作物利用的不超过百分之三十。在施用方法上贫下中农的实践经验和科学理论都证明碳铵必须深施才能提高肥效和增产。南京土壤研究所长效肥研究组,于一九七一年起开展了以碳铵为主要对象的长效肥的研究工作,他们在毛主席革命路线指引下,走出实验室,拜工农为师,总结群众施用碳铵的经验。在有 Ammonium bicarbonate (referred to as ammonium bicarbonate) is currently China’s largest production, the most widely used a nitrogen fertilizer varieties, due to ammonium bicarbonate (powder) is easy to moisture, decomposition volatile. In the course of transport, storage and application, if improper measures are taken, some or most of the nitrogenous fertilizer, which is often volatilized and lost by nitrification-reduction, is normally used by crops not more than 30%. The practical experience and scientific theories of poor middle peasants in the application methods all prove that ammonium bicarbonate must be applied in a deep-seated manner to improve fertilizer efficiency and yield. In 1991, the research team on long-acting fertilizers of Nanjing Institute of Soil Science carried out research on long-acting fertilizers with ammonium bicarbonate as the main target. They guided the revolutionary line of Chairman Mao out of the laboratory and worshiped workers and peasants , Summed up the experience of people using ammonium bicarbonate. In There