Collaborative Innovation Centre of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, Jiangsu, 210044, PR China; Centre for Clean Environment and Energy, Griffith University, Gold Coast campus, QLD, 4222, Australia.
Collaborative Innovation Centre of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, Jiangsu, 210044, PR China.
Chemosphere. 2022 Sep;303(Pt 1):134944. doi: 10.1016/j.chemosphere.2022.134944. Epub 2022 May 13.
Good practices in controlling ammonia produced from the predominant agricultural contributor, crop farming, are the most direct yet effective approaches for mitigating ammonia emissions and further relieving air pollution. Of all the practices that have been investigated in recent decades, fertilizer amendment technologies are garnering increased attention as the low nitrogen use efficiency in most applied quick-acting fertilizers is the main cause of high ammonia emissions. This paper systematically reviews the fertilizer amendment technologies and associated mechanisms that have been developed for ammonia control, especially the technology development of inorganic additives-based complex fertilizers, coating-based enhanced efficiency fertilizers, organic waste-based resource fertilizers and microbial agent and algae-based biofertilizers, and their corresponding mechanisms in farmland properties shifting towards inhibiting ammonia volatilization and enhancing nitrogen use efficiency. The systematic analysis of the literature shows that both enhanced efficiency fertilizers technique and biofertilizers technique present outstanding ammonia inhibition performance with an average mitigation efficiency of 54% and 50.1%, respectively, which is mainly attributed to the slowing down in release and hydrolysis of nitrogen fertilizer, the enhancement in the adsorption and retention of NH/NH in soil, and the promotion in the microbial consumption of NH in soil. Furthermore, a combined physical and chemical means, namely membrane/film-based mulching technology, for ammonia volatilization inhibition is also evaluated, which is capable of increasing the resistance of ammonia volatilization. Finally, the review addresses the challenges of mitigating agricultural ammonia emissions with the aim of providing an outlook for future research.
控制农业氨排放的最佳实践，特别是农田施肥管理，是减少氨排放、缓解空气污染的最直接、最有效的方法。在过去几十年中，人们研究了各种实践方法，其中肥料改性技术由于大多数速效肥料的低氮利用效率是导致高氨排放的主要原因，而受到越来越多的关注。本文系统地综述了用于控制氨的肥料改性技术及相关机制，特别是基于无机添加剂的复合肥、基于包膜的增效肥料、基于有机废弃物的资源肥料以及基于微生物和藻类的生物肥料等技术的发展及其在农田性质转变方面抑制氨挥发和提高氮素利用效率的相关机制。通过对文献的系统分析，发现增效肥料技术和生物肥料技术在抑制氨挥发方面均表现出良好的性能，平均减排效率分别为 54%和 50.1%，这主要归因于减缓氮肥的释放和水解、增强土壤中 NH 3 和 NH 4 + 的吸附和保持、促进土壤中微生物对 NH 3 的消耗。此外，还评估了一种基于物理化学手段的膜/膜覆盖技术，该技术可以提高氨挥发的阻力。最后，本文讨论了减少农业氨排放的挑战，以期为未来的研究提供展望。
