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Properties of Coated Controlled Release Diammonium Phosphate Fertilizers Prepared with the Use of Bio‐based Amino Oil
The Journal of the American Oil Chemists’ Society ( IF 1.9 ) Pub Date : 2020-05-06 , DOI: 10.1002/aocs.12360 Asma Sofyane 1 , Mohammed Lahcini 1 , Abdellatif El Meziane 2 , Mehdi Khouloud 3 , Abdelmalek Dahchour 4 , Sylvain Caillol 5 , Mustapha Raihane 1
The Journal of the American Oil Chemists’ Society ( IF 1.9 ) Pub Date : 2020-05-06 , DOI: 10.1002/aocs.12360 Asma Sofyane 1 , Mohammed Lahcini 1 , Abdellatif El Meziane 2 , Mehdi Khouloud 3 , Abdelmalek Dahchour 4 , Sylvain Caillol 5 , Mustapha Raihane 1
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In an effort to enhance the efficiency of fertilizer use and minimize their negative impact on the environment, a novel biomass‐based, functional controlled‐release fertilizer was used to improve nutrient use efficiency and increase crop production systems for more sustainable agriculture practices. Here, bio‐based amino‐oil (Priamine) mixtures were proposed as an outer coating with different layers for the control of phosphorus release from diammonium Phosphate (DAP). These hydrophobic coatings conferred excellent barrier properties and flexibility to coatings. The morphological characterization of the coated fertilizer was performed by scanning electronic microscopy (SEM), electronic diffraction X‐ray (EDX) and mapping, and revealed the formation of a cohesive film and a good adhesion between DAP fertilizer and coating film. The release rate of nutrients (phosphate) in water was investigated by UV–Vis spectrophotometer. The effect of coating thickness was investigated on release time and diffusion coefficient of phosphor release in distilled water. Release time increased with the coating thickness. The diffusion coefficient of nutrient release decreased with the coating thickness. Compared with uncoated granule which is totally solubilized after less than 2 hours, the P release profiles of the coated granules reached the equilibrium stage approximately after 98 and 126 hours when the DAP is coated with only Priamine single‐layer (1L) and double‐layer (2L), respectively. Moreover, the strategy adopted has successfully provided a very slow release and long‐term availability of nutrient sources with bio‐based coating oil compared to uncoated fertilizer (DAP) and therefore exhibited promising application for sustainable development of modern agriculture and circular economic.
中文翻译：
生物基氨基油制备的控释磷酸氢二铵肥料的性质
为了提高肥料使用效率并最大程度地减少其对环境的不利影响，使用了一种新型的基于生物质的功能性控释肥料，以提高养分利用效率并增加作物生产体系，以实现更可持续的农业实践。在此，提出了一种生物基氨基油（丙胺）混合物作为具有不同层的外涂层，以控制磷酸二铵（DAP）中磷的释放。这些疏水性涂料赋予涂料优异的阻隔性能和柔韧性。包衣肥料的形态特征通过扫描电子显微镜（SEM），电子衍射X射线（EDX）和作图进行，并揭示了粘结膜的形成以及DAP肥料与包膜之间的良好粘附性。紫外-可见分光光度计研究了水中养分（磷酸盐）的释放速率。研究了涂层厚度对蒸馏水中磷的释放时间和磷扩散系数的影响。释放时间随着涂层厚度的增加而增加。养分释放的扩散系数随涂层厚度的增加而降低。与不到2小时后完全溶解的未包衣颗粒相比，当DAP仅分别用Priamine单层（1L）和双层（2L）涂覆时，包衣颗粒的P释放曲线大约在98和126小时后达到平衡阶段。此外，与未包衣肥料（DAP）相比，采用的策略已成功提供了生物基包衣油非常缓慢的释放和长期可利用的营养源，因此在现代农业的可持续发展和循环经济方面具有广阔的应用前景。
更新日期：2020-07-08
中文翻译：
生物基氨基油制备的控释磷酸氢二铵肥料的性质
为了提高肥料使用效率并最大程度地减少其对环境的不利影响，使用了一种新型的基于生物质的功能性控释肥料，以提高养分利用效率并增加作物生产体系，以实现更可持续的农业实践。在此，提出了一种生物基氨基油（丙胺）混合物作为具有不同层的外涂层，以控制磷酸二铵（DAP）中磷的释放。这些疏水性涂料赋予涂料优异的阻隔性能和柔韧性。包衣肥料的形态特征通过扫描电子显微镜（SEM），电子衍射X射线（EDX）和作图进行，并揭示了粘结膜的形成以及DAP肥料与包膜之间的良好粘附性。紫外-可见分光光度计研究了水中养分（磷酸盐）的释放速率。研究了涂层厚度对蒸馏水中磷的释放时间和磷扩散系数的影响。释放时间随着涂层厚度的增加而增加。养分释放的扩散系数随涂层厚度的增加而降低。与不到2小时后完全溶解的未包衣颗粒相比，当DAP仅分别用Priamine单层（1L）和双层（2L）涂覆时，包衣颗粒的P释放曲线大约在98和126小时后达到平衡阶段。此外，与未包衣肥料（DAP）相比，采用的策略已成功提供了生物基包衣油非常缓慢的释放和长期可利用的营养源，因此在现代农业的可持续发展和循环经济方面具有广阔的应用前景。
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