加氧滴灌已成为协同提升作物产量、品质与水肥利用效率的有效途径。前期探索性研究发现随着加氧浓度增加作物产量与品质呈现先升高后降低的单峰变化，但作用机制不明。众多研究从作物生理、水肥高效利用等角度阐述了加氧滴灌的增产提质机理，对作物生长基础-土壤肥力的影响还仅有零星报道，但已显示加氧滴灌对土壤肥力具有促进作用。为此，本研究借助16S和ITS rRNA扩增子测序、宏基因组高通量测序、微生物分子生态网络等精细测试技术与分析方法，融合农田水利学、土壤学、分子微生物学、基因组学等多学科知识，力求回答不同加氧浓度条件下土壤微生物-土壤肥力-作物产量/品质的动态响应关系，解析加氧滴灌调控土壤肥力的微生物分子生态学机制，创建面向协同提升土壤肥力、作物产量与品质的加氧滴灌技术应用模式。旨在为加氧滴灌技术的推广应用与作物高效生产策略的制定提供科技支撑。

Aerated drip irrigation (ADI) has been demonstrated to be an effective way to synergistically improve crop yield, quality, and water and fertilizer use efficiency. Our previous exploratory studies have found that crop yield and quality tended to increase first and then decrease with the increase of oxygen concentration in ADI. However, the underlying mechanism is still unknown. Several studies have stated the mechanism of ADI increasing crop yield and quality from the perspectives of crop physiology and water and fertilizer use efficiency. Research focus on the effect of ADI on soil fertility, the foundation of plant growth, is still limited, while it has shown that ADI had a positive effect on soil fertility. By use of 16S and ITS rRNA amplicon sequencing, metagenomic sequencing and microbial co-occurrence network, and integration of multidisciplinary knowledge such as irrigation and drainage engineering, edaphology, molecular microbiology, genomics, the study aims to explore the interactions between soil microorganisms-soil fertility-crop yield/quality under ADI, and reveal the mechanism of microbiological molecular ecology on ADI regulating soil fertility, and then establish an ADI application mode on the basis of synergistically improving soil fertility and crop yield and quality. It is expected to publish 3-5 papers and apply 1 patent for invention. The study is potential to provide scientific and technological support for the popularization and application of ADI and the strategies for efficient crop production.