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开发和评估一种使用功能化生物固体作为支矩阵的缓释封闭化肥

Rodrigo Ramírez Palacios¹, Nora Restrepo-Sánchez¹, Rosember Ramirez²

¹Interdisciplinary Group of Molecular Studies (GIEM), Chemistry Institute, Faculty of Exact and Natural Sciences, University of Antioquia, Street 67 No. 53-108, Medellín 050010, Colombia.

Plants (Basel, Switzerland)

|October 29, 2025

概括

这项研究使用生物固体开发了两种缓释肥料 (SRF). 用生物固体/纸制成的FOMI SRF证明了受控的营养物质释放,并符合欧洲标准,提供环保肥料选项.

科学领域:

农业科学农业科学
环境科学环境科学
材料科学材料科学材料科学

背景情况:

未涂层的矿物肥会导致快速的营养损失和环境问题.
开发高效的缓释肥 (SRF) 对可持续农业至关重要.
生物固体为可生物降解的SRF提供了一个潜在的矩阵.

研究的目的:

用生物固体作为矩阵创建和评估两个新的SRF.
为了比较SRF的营养释放概况与未涂层肥料.
根据欧洲标准化委员会 (CEN) 的标准来评估SRF的性能.

主要方法:

NPK 10-10-10肥料被封闭在两个矩阵中:FOMI (生物固体/纸,3: 1 w/w) 和FOMII (生物固体/粘土,1: 1 w/w).
材料和颗粒的物理化学和微生物学表征.
在水和土壤柱中评估的营养物质释放动力学;与未涂层肥料 (F) 相比,释放率.

主要成果:

没有涂层的肥料 (F) 呈现出快速释放的营养物质.
与F.相比,FOMI和FOMII都减缓了营养释放的速度.
福米显示释放速度最慢,符合CEN SRF标准 (在48小时释放率<15%,在30天释放率<75%).
FOMI显示出更高的水容量和阴离子交换能力.
FOMII提供了中间释放率,比F慢,但比FOMI快.

结论:

FOMI是一种可生物降解,低成本的SRF,可提高肥料使用效率和土壤有机物质.
FOMI符合欧洲SRF标准,提供了一个可持续的农业解决方案.
FOMII提供了中间效益,表明了量身定制的肥料释放的潜力.

关键词:

生物固体是一种生物固体.粘土的粘土,就是粘土.有机物有机物是有机物.纸张污泥的污泥,是纸张污泥中的一种.放缓释放的肥料缓慢释放的肥料

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