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根际沉积氮是土壤微生物重要的营养元素来源,也是联系作物、土壤和微生物的桥梁。近年来随着对作物地上部分研究的深入,对地下部的研究日益受到重视和关注,作物根际沉积氮已成为一个重要的研究课题之一。简要介绍了国内外作物根际沉积氮的最新研究进展,包括数量评估、影响因素、研究和计算方法等,以供相关研究参考。并提出未来应加强大田原位情况下根际沉积氮量与组成的研究,明确其调控机制,以及与根际沉积碳之间的协同作用与机制。
Rhizosphere sediment nitrogen is an important source of nutrients for soil microorganisms, but also a bridge linking crops, soils and microorganisms. In recent years, with the in-depth study of above-ground parts of crops, more and more attention has been paid to the research of underground parts. Nitrogen deposition in crop rhizosphere has become an important research topic. The recent research progresses of nitrogen deposition in crop rhizosphere at home and abroad are briefly introduced, including quantitative assessment, influential factors, research and calculation methods for reference of relevant research. And put forward the research on the rhizosphere sediment nitrogen content and its composition should be strengthened in situ in the field in the future to clarify its regulatory mechanism and the synergy and mechanism between it and rhizosphere sedimentary carbon.