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<p>Enhancing sustainable rice production is crucial for global food security. Here we demonstrate that 0.1 mg kg<sup>‒1</sup>selenium-engineered nanomaterials promote rice (<i>Oryza sativa L</i>.) tillering and yield by optimizing the rhizosphere microbial community, improving nitrogen use efficiency, and modulating plant hormones and growth-related genes. Using pot experiments with five different soils and field trials in China, we found that soil organic carbon strongly influences nanomaterial effectiveness. Field results demonstrated a 10.7% yield increase and a 309.8% rise in grain selenium concentration, with no adverse effects on soil quality. Predictive modeling calculated that selenium-enhanced agriculture could increase profits by +$231.5 ha<sup>−1</sup>, reduce CO<sub>2</sub> emissions by 1.12 Tons ha<sup>−1</sup>, and produce selenium-rich grains ( ~ 20 μg·100 g<sup>−1</sup>) to address dietary deficiencies. Our findings highlight the potential of selenium nanomaterials to sustainably boost rice production, urging further research across diverse ecosystems to optimize their agricultural and environmental benefits.</p><p></p>

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Application of selenium-engineered nanomaterials to paddy soil promote rice production by improving soil health

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年6月10日

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  • Chuanxi Wang,
  • Bingxu Cheng,
  • Jing Li,
  • Xiaona Li,
  • Yanfang Feng,
  • Melanie Kah,
  • Le Yue,
  • Xuesong Cao,
  • Zhanxi Fan,
  • Yahui Ji,
  • Zhenyu Wang,
  • Baoshan Xing

摘要

Enhancing sustainable rice production is crucial for global food security. Here we demonstrate that 0.1 mg kg‒1selenium-engineered nanomaterials promote rice (Oryza sativa L.) tillering and yield by optimizing the rhizosphere microbial community, improving nitrogen use efficiency, and modulating plant hormones and growth-related genes. Using pot experiments with five different soils and field trials in China, we found that soil organic carbon strongly influences nanomaterial effectiveness. Field results demonstrated a 10.7% yield increase and a 309.8% rise in grain selenium concentration, with no adverse effects on soil quality. Predictive modeling calculated that selenium-enhanced agriculture could increase profits by +$231.5 ha−1, reduce CO2 emissions by 1.12 Tons ha−1, and produce selenium-rich grains ( ~ 20 μg·100 g−1) to address dietary deficiencies. Our findings highlight the potential of selenium nanomaterials to sustainably boost rice production, urging further research across diverse ecosystems to optimize their agricultural and environmental benefits.