Agriculture & Soil

Basic

Soil Moisture Content

Gravimetric water content of soil by weight.

Formula

\theta = \frac{m_w - m_d}{m_d} \times 100

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Variables

θMoisture (%)

m_wWet mass

m_dDry mass

Example

Wet 240 g, dry 200 g: θ = 20%

Did You Know?

Knowing soil moisture stops farmers watering land that's already wet enough — saving water and roots.

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