Controlled nutrient release for more efficient agricultural water use and reduced environmental insult

控制养分释放，提高农业用水效率并减少环境污染

• 批准号: LP0882618
• 负责人: Prof Robert Gilbert
• 金额: $ 16.69万
• 依托单位: The University of Queensland
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2008
• 资助国家: 澳大利亚
• 起止时间: 2008-06-03 至 2011-06-02
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP0882618
• 关键词: Controlled; nutrient; release; more; efficient

We will create a completely new type of coating for fertilizer granules. Clays that adsorb and slowly release phosphates and/or other nutrients will be exfoliated with cationic organic reagents to produce organoclay nanoparticles of greatly increased surface area. These will be polymerized with current and novel monomers to form nanocomposites, encasing the clay in a water-swellable matrix by polymerization; this will enable both slow water perfusion and strong binding to the granules. The polymer and nanoclay properties will be tuneable to release targeted nutrients at an optimal rate for uptake by crops, reducing nutrient seepage into the environment.

我们将创造一种全新的肥料颗粒包衣。吸附并缓慢释放磷酸盐和/或其他营养物质的粘土将被阳离子有机试剂剥离，生成表面积大大增加的有机粘土纳米颗粒。这些将与现有的和新型的单体聚合，形成纳米复合材料，通过聚合将粘土包裹在可水膨胀的基质中；这将使缓慢的水灌流和与颗粒的强烈结合成为可能。聚合物和纳米粘土的性质将是可调的，以最优速度释放作物吸收的目标营养物质，减少营养物质渗入环境。