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Subsurface soil moisture may be measured from space

Satellite technology could help agricultural producers more accurately measure subsurface moisture.

Agricultural producers could, in the future, make use of better forecasts to more efficiently irrigate their fields using a Purdue University-developed technology that could more accurately sense soil moisture below the surface through measuring the reflections of communication satellite signals.

“The reflectivity of the surface is a function of the soil moisture, and that allows us to quantify the amount of moisture in the soil so, if necessary, growers can take corrective acti

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