Processing tomato (Lycopersicon esculentum Miller) yield and quality in arid regions through micro-nano aerated drip irrigation coupled with humic acid application

作者：Jiaying Ma, Rui Chen, Yue Wen, Jinzhu Zhang, Feihu Yin, Tehseen Javed, Jiliang Zheng, Zhenhua Wang · 发表于：Agricultural Water Management · 年份：2025 · DOI：10.1016/j.agwat.2025.109317 · 被引用次数：17 · 研究领域：Plant Growth Enhancement Techniques、Innovations in Aquaponics and Hydroponics Systems、Composting and Vermicomposting Techniques

The long-term, extensive use of mulched drip irrigation has effectively mitigated water scarcity. However, it has led to reduced soil aeration, with a negative impact on crop growth and yield. Our study aims to tackle this issue by investigating the arid region of Northwest China, focusing on how humic acid (HA)-based water-fertilizer-gas coupled drip irrigation influences soil aeration, as well as the yield and quality of processing tomatoes. The experiment involved two irrigation amounts (W1:450 mm, W2:380 mm), three HA application rates (H1: 0 %, H2: 0.25 %, H3: 0.5 %), and two aeration methods (A1: non-aerated, A2: micro-nano aerated). The finding of the study revealed that compared to the conventional treatment (W1H1A1), the synergistic application of 0.5 % HA combined with micro-nano aeration significantly improved both the yield and quality (vitamin C, soluble sugars, lycopene, and soluble solids, increased by 102.97 %, 38.95 %, 104.69 %, and 21.16 %, respectively) of processing tomatoes under low irrigation stress (380 mm) in the first year. Although the effect diminished under two years of low water irrigation, the treatment maintained a high yield (147.96 t ha–1). SEM analysis revealed that coupled water-fertilizer-gas drip irrigation directly enhanced soil oxygen content while negatively affecting soil water-filled porosity and evapotranspiration, thus indirectly influencing the growth, yield, and quality of processing tomatoes. Multiple regression and spatial anal...