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Measuring Potassium in Soil with a Spectroradiometer

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Measuring Potassium in Soil with a Spectroradiometer

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Potassium (K) is a vital macronutrient critical for plant water regulation, enzyme activation, photosynthate transport, and stress tolerance. Traditional methods for determining soil K such as flame photometry or atomic absorption require chemical reagents, lab time, and infrastructure. Spectroradiometers offer a fast, field-capable alternative by detecting K-bearing minerals (like feldspars, micas, and clays) via their spectral signatures.

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