ISU: NW Iowa subsoil moisture levels remain very low

Good Big Show Buddy Gentry Sorensen, Iowa State University Extension and Outreach Field Agronomist has completed their fall survey of subsoil moisture in northwest Iowa. The survey provides a current and historical perspective on subsoil moisture levels. Soil moisture is sampled to a depth of five foot in one-foot increments at pre-determined locations in the spring and fall. Soil moisture samples are weighed wet, dried for 48 hours, and weighed dry. Soil moisture is reported in inches of plant available moisture after calculations account for plant available and plant unavailable moisture. The following are the values of plant available moisture for the fall of 2022 collected by Iowa State University Extension and Outreach field agronomists and you can see them here.


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