修改了制造工艺,以长时间释放的利格宁-蒙特莫里隆尼特生物复合物封装尿素
Mohamed I D Helal1, Zhaohui Tong2, Hassan A Khater1
1Soil Sciences Department, Faculty of Agriculture, Cairo University, Giza 12613, Egypt.
Nanomaterials (Basel, Switzerland)
|June 27, 2023
概括
这项研究开发了新的慢释放肥料 (SRFs),使用木质素和粘土制造可控释放尿素 (CRU) 珠. 这些环保的SRF显著扩大了释放,提高了作物效率,减少了肥料的使用.
科学领域:
- 农业科学 农业科学
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
背景情况:
- 农作物生产因肥料使用效率低而扎,导致营养损失.
- 慢释放肥料 (SRFs) 减轻了因浸出,排水和挥发而导致的营养损失.
- 基于生物聚合物的SRF为以石油为基础的聚合物提供了可持续的替代品,有利于土壤健康.
研究的目的:
- 开发一种生物复合物,用于缓释肥料 (SRFs),使用木质素和蒙莫里隆土.
- 为了创建可控释放尿素 (CRU) 珠子,增加 (N) 含量和延长释放.
- 评估基于生物聚合物的SRF对可持续农业的环境效益.
主要方法:
- 从生物废物宁和蒙特莫里隆土制造生物复合材料.
- 在生物复合材料中封装尿素以形成CRU珠 (20-30重量%N).
- 使用X射线衍射 (XRD),里埃变换红外光谱 (FTIR) 和扫描电子显微镜 (SEM) 的表征.
主要成果:
- 成功开发出具有高含量 (20-30%重量) 的CRU珠.
- 延长释放周期在水中为20天,在土壤中为32天.
- 鉴定证实了生物复合材料CRU的结构完整性和性能.
结论:
- 开发的CRU珠子为提高植物利用效率提供了可持续的解决方案.
- 长时间的释放减少了肥料消耗和环境影响.
- 这项研究通过创新的生物复合肥开发,为可持续的农业实践做出贡献.
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