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Custom Soil Resource Report <br /> Mean annual air temperature: 50 to 54 degrees F <br /> Frost-free period: 135 to 160 days <br /> Farmland classification: Prime farmland if irrigated <br /> Map Unit Composition <br /> Nunn and similar soils: 85 percent <br /> Minor components: 15 percent <br /> Estimates are based on observations, descriptions, and transects of the mapunit. <br /> Description of Nunn <br /> Setting <br /> Landform: Terraces <br /> Landform position (three-dimensional): Tread <br /> Down-slope shape: Linear <br /> Across-slope shape: Linear <br /> Parent material: Pleistocene aged alluvium and/or eolian deposits <br /> Typical profile <br /> Ap- 0 to 9 inches: clay loam <br /> Bt-9 to 13 inches: clay loam <br /> Btk- 13 to 25 inches: clay loam <br /> Bk1 -25 to 38 inches: clay loam <br /> Bk2-38 to 80 inches: clay loam <br /> Properties and qualities <br /> Slope: 1 to 3 percent <br /> Depth to restrictive feature: More than 80 inches <br /> Natural drainage class: Well drained <br /> Runoff class: Medium <br /> Capacity of the most limiting layer to transmit water(Ksat): Moderately low to <br /> moderately high (0.06 to 0.20 in/hr) <br /> Depth to water table: More than 80 inches <br /> Frequency of flooding: None <br /> Frequency of ponding: None <br /> Calcium carbonate, maximum in profile: 7 percent <br /> Salinity, maximum in profile: Nonsaline to very slightly saline (0.1 to 2.0 <br /> mmhos/cm) <br /> Sodium adsorption ratio, maximum in profile: 0.5 <br /> Available water storage in profile: High (about 9.9 inches) <br /> Interpretive groups <br /> Land capability classification (irrigated): 2e <br /> Land capability classification (nonirrigated): 3e <br /> Hydrologic Soil Group: C <br /> Ecological site: Clayey Plains (R067BY042CO) <br /> Hydric soil rating: No <br /> Minor Components <br /> Heldt <br /> Percent of map unit: 10 percent <br /> Landform: Terraces <br /> Landform position (three-dimensional): Tread <br /> Down-slope shape: Linear <br /> Across-slope shape: Linear <br /> Ecological site: Clayey Plains (R067BY042CO) <br /> 52 <br />