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  "Title": "Soil Iron Oxides via Diffuse Reflectance",
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  "Description": "Calculate the ratio of iron oxides, hematite and goethite,\nin soil using the diffuse reflectance technique. The\nKubelka-Munk theory, second derivative analysis, and spectral\nregion amplitudes related to hematite and goethite content are\nused for quantification (Torrent, J., & Barron, V. (2008)\n<doi:10.2136/sssabookser5.5.c13>). Additionally, the package\ncalculates soil color in the visible spectrum using Munsell and\nRGB color spaces, based on color theory (Viscarra et al. (2006)\n<doi:10.1016/j.geoderma.2005.07.017>).",
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