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<p>This study presents an advancement in sustainable agriculture through the development of controlled-release fertilizers based on micronutrient-enriched phosphate glasses in the <i>P</i><sub>2</sub><i>O</i><sub>5</sub><i>-K</i><sub>2</sub><i>O-CaO-MgO-Fe</i><sub>2</sub><i>O</i><sub>3</sub><i>-ZnO-CuO</i> and <i>P</i><sub>2</sub><i>O</i><sub>5</sub><i>-K</i><sub>2</sub><i>O-CaO-MgO-Fe</i><sub>2</sub><i>O</i><sub>3</sub><i>-MnO</i> systems. Addressing the increasing challenges of global food security, our research focuses on innovative materials with measurable benefits compared to conventional fertilizers. The synthesized phosphate glasses were characterized using XRD, DTA, and spectroscopic methods, showing high chemical durability and stability. Incorporating micronutrients into the glass matrix enhanced its structural properties, ensuring controlled nutrient release over time. Dissolution studies in distilled water demonstrated efficient nutrient delivery, reducing environmental impact and nutrient wastage. Greenhouse experiments on maize growth indicated that these vitreous formulations performed better in key growth parameters than traditional NPK fertilizers. Notable results included a 20% increase in plant height, a 15% increase in root length, a 25% increase in shoot weight, a 30% increase in root weight, and a 10% increase in photosynthesis rates. These findings highlight the potential of controlled-release materials for improving the sustainability and efficiency of modern agricultural practices, particularly in regions like Africa where food security is a pressing concern.</p>

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Exploring Micronutrient-Enriched Phosphate Glasses as Controlled-Release Materials for Maize Agriculture

  • 期刊论文

  • 发表日期：

    2025年6月2日

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  • Noureddine El Binna,
  • Tariq Labbilta,
  • Chaima Assamadi,
  • Mohamed El Masloumi,
  • Majdouline Belaqziz,
  • Abdelaziz El Abaid,
  • Hakima Aouad

摘要

This study presents an advancement in sustainable agriculture through the development of controlled-release fertilizers based on micronutrient-enriched phosphate glasses in the P2O5-K2O-CaO-MgO-Fe2O3-ZnO-CuO and P2O5-K2O-CaO-MgO-Fe2O3-MnO systems. Addressing the increasing challenges of global food security, our research focuses on innovative materials with measurable benefits compared to conventional fertilizers. The synthesized phosphate glasses were characterized using XRD, DTA, and spectroscopic methods, showing high chemical durability and stability. Incorporating micronutrients into the glass matrix enhanced its structural properties, ensuring controlled nutrient release over time. Dissolution studies in distilled water demonstrated efficient nutrient delivery, reducing environmental impact and nutrient wastage. Greenhouse experiments on maize growth indicated that these vitreous formulations performed better in key growth parameters than traditional NPK fertilizers. Notable results included a 20% increase in plant height, a 15% increase in root length, a 25% increase in shoot weight, a 30% increase in root weight, and a 10% increase in photosynthesis rates. These findings highlight the potential of controlled-release materials for improving the sustainability and efficiency of modern agricultural practices, particularly in regions like Africa where food security is a pressing concern.