Nutrient-impregnated charcoal: An environmentally friendly slow-release fertilizer

被引：95

作者：

Khan M.A. ^{[1
]}

Kim K.-W. ^{[1
]}

Mingzhi W. ^{[1
]}

Lim B.-K. ^{[1
]}

Lee W.-H. ^{[1
]}

Lee J.-Y. ^{[1
]}

机构：

[1] Department of Wood Science and Technology, College of Agriculture and Life Sciences, Kyungpook National University

来源：

The Environmentalist | 2008年 / 28卷 / 3期

关键词：

Charcoal; Fertilizer; Impregnation; Slow-release;

D O I：

10.1007/s10669-007-9133-5

中图分类号：

学科分类号：

摘要：

The widespread contamination of surface and ground water quality from the heavy use of fertilizer in modern agriculture is the current concern. Therefore, this study was carried out to develop a slow-release fertilizer using charcoal. The morphology of the charcoal impregnated fertilizer was investigated by scanning electron microscopy (SEM). This study also evaluated the release patterns of N, P, and K from impregnated charcoal using a simulated soil solution and distilled water as leaching solutions. The patterns of N, P, and K releases were examined in both static and continuous-flow conditions for 360 h. Releases of N, P, and K from impregnated charcoal were found to be slow and steady. However, the release trends of N, P, and K were higher in soil solution than distilled water under both the above conditions. Dissolution occurred when N, P, and K were released in the above leached solutions. As a result, the fertilizer impregnated charcoal could be developed as slow-release type fertilizer to minimize the contamination. © 2007 Springer Science+Business Media, LLC.

引用

页码：231 / 235

页数：4

共 12 条

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