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<p>Global agricultural systems face unprecedented challenges in meeting rising food demand while maintaining environmental sustainability, with soil oxygen deficiency and contamination threatening both crop productivity and soil health. Nanobubble (NB) technology, featuring gas-filled spheres &lt; 1&#xa0;μm in diameter, has emerged as a promising dual-function solution for simultaneous plant growth enhancement and environmental remediation. This review systematically analyzes current knowledge on NB mechanisms in agricultural systems, identifying key factors governing their effectiveness in both plant growth promotion and soil remediation applications. We comprehensively examine NB stability and transport behaviors in soil matrices, remediation mechanisms for various contaminants, including heavy metals and organic pollutants, and plant growth enhancement pathways through rhizosphere oxygenation and nutrient transport optimization. The analysis integrates findings from recent studies (2018–2025) across laboratory, greenhouse, and limited field-scale applications. NBs demonstrate dual functionality through surface charge-mediated stability, enhanced mass transfer efficiency, and context-dependent effectiveness varying with soil properties, gas type, and application parameters. Plant growth improvements of 10–50% are commonly reported, as well as significant contaminant removal efficiencies reaching 75–98% for various pollutants. However, economic feasibility and long-term environmental impacts remain underexplored. While NB technology shows substantial promise for sustainable agricultural intensification, successful implementation requires standardized protocols, field-scale validation studies, and comprehensive economic analysis to address current knowledge gaps in scalability and long-term ecosystem effects. Overall, this review compiles scattered information on the NB application within agricultural practices, thereby providing new insight to guide future research efforts.</p>

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Dual Mechanisms of Nanobubble Technology for Plant Growth Enhancement and Soil Remediation Amid Challenges

  • 期刊论文

  • 发表日期：

    2025年11月19日

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  • Yik Tung Sham,
  • Min Pan,
  • Liwen Luo,
  • Kenrick Chun Kiu Ho,
  • Jennie Yan Ning Yu,
  • Steven Jingliang Xu

摘要

Global agricultural systems face unprecedented challenges in meeting rising food demand while maintaining environmental sustainability, with soil oxygen deficiency and contamination threatening both crop productivity and soil health. Nanobubble (NB) technology, featuring gas-filled spheres < 1 μm in diameter, has emerged as a promising dual-function solution for simultaneous plant growth enhancement and environmental remediation. This review systematically analyzes current knowledge on NB mechanisms in agricultural systems, identifying key factors governing their effectiveness in both plant growth promotion and soil remediation applications. We comprehensively examine NB stability and transport behaviors in soil matrices, remediation mechanisms for various contaminants, including heavy metals and organic pollutants, and plant growth enhancement pathways through rhizosphere oxygenation and nutrient transport optimization. The analysis integrates findings from recent studies (2018–2025) across laboratory, greenhouse, and limited field-scale applications. NBs demonstrate dual functionality through surface charge-mediated stability, enhanced mass transfer efficiency, and context-dependent effectiveness varying with soil properties, gas type, and application parameters. Plant growth improvements of 10–50% are commonly reported, as well as significant contaminant removal efficiencies reaching 75–98% for various pollutants. However, economic feasibility and long-term environmental impacts remain underexplored. While NB technology shows substantial promise for sustainable agricultural intensification, successful implementation requires standardized protocols, field-scale validation studies, and comprehensive economic analysis to address current knowledge gaps in scalability and long-term ecosystem effects. Overall, this review compiles scattered information on the NB application within agricultural practices, thereby providing new insight to guide future research efforts.