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来自废物的功能化生物炭作为缓释营养源:用于番茄植物的应用

Domenico Rosa¹, Valerio Petruccelli², Maria Cristina Iacobbi¹

¹Department of Chemical Engineering Materials Environment & UdR INSTM, Sapienza-Università di Roma, Via Eudossiana 18, 00184, Roma, Italy.

|April 22, 2024

概括

甘废弃物生物炭在500°C下进行热解,作为西红植物有效的缓释肥料. 这种生物炭 (BC500) 增强了营养吸收和植物生长,显示了可持续农业的潜力.

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:

农业废弃物 (甘加工残留物) 的利用为生物炭.
生物炭作为缓释肥料的潜力,以改善土壤特性和植物营养.

研究的目的:

从甘废物中生产和特征化生物炭,用于缓释肥料应用.
评估番茄 (Solanum lycopersicum) 生长中的生物炭的营养释放动力学和性能.

主要方法:

在500°C和700°C的甘废物的热解以产生生物炭 (BC500,BC700).
使用BET,SEM,元素分析和零电荷点 (pHzc) 的表征.
使用NPK的功能化,不同pH值的脱吸试验,以及使用不同生物炭剂量和NPK比率的温室试验.

主要成果:

与BC700 (10天) 相比,BC500表现出较慢的营养释放动力学 (14天平衡),这是由于孔径较小而造成的.
功能化的BC500显示了较高的NPK含量和较低的脱吸率 (Kdes).
优化治疗 (25%BC500,NPK比为4:1:3) 在番茄植物中显著增加了总叶绿素 (+38%) 和胡卜素 (+15%).

结论:

甘衍生生物炭,特别是BC500,是缓释肥料的一个有希望的材料.
生物炭的应用可以通过改善营养素的可用性和植物生理学来提高作物产量和质量.
用农业废物生产生物炭为废物管理和土壤修改提供了一种可持续的方法.

关键词:

循环经济是一个循环经济.脱吸方式脱吸方式功能化的生物炭.植物营养植物营养缓释化肥是一种缓释化肥.这种植物是Solanum lycopersicum.

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