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Soils of North Dakota. Dave Franzen Professor, North Dakota State University, Fargo- Extension Soil Specialist. Green soils are Mollisols. Lakebed. Till. Residuum. YOUNG. Lakebed. Till. Residuum. OLD. All of our soils “East River” are derived from great continental glaciers.
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Soils of North Dakota Dave Franzen Professor, North Dakota State University, Fargo- Extension Soil Specialist
Lakebed Till Residuum
YOUNG Lakebed Till Residuum OLD
All of our soils “East River” are derived from great continental glaciers.
Cool/moist Cool/dryer Hot/dry Warm/moist
Slide from Hopkins, 2011 The organic carbon (OC) is: 3.07, 2.16, and 1.67 % to 26 in. That lowest horizon is > 3% SOM Bulk density values:Ap 0-6 in. 1.17 g/cm3 AB 6-13 1.31 B 13-26 1.41 CEC; 45.3 cmol (+)/kg older term (meq/100g) Ca+2= 21.8 cmol (+)/kg Mg+2=15.1 cmol (+)/kg
Red River Valley scene with Fargo soils in a corn field, early June, 2010.
Bare soil temperature at 4 inches from November 1, 2009 through March 31, 2010, Fargo, ND.
A B C Typical Barnessoil profile Mean wetting depth
Wheat field harvest, August, 2010, NW North Dakota, Bismarck Tribune photo
Williams Soils- Side slope position on many western North Dakota soils 2.2 million acres of ND is Williams loams
Salts or sodium affect many millions of acres of North Dakota farm and pasture land
6/22/99 6/22/00 6/18/96 6/15/93 6/14/94 6/23/92 Swale groundwater elevations in mid-June; 1991-2000 Drought to pluvial in southeastern North Dakota (Hopkins)
Devils Lake 1984 USGS image Devils Lake 2010 USGS image
Farmland near Forman, ND flooding due to water table rising, 2011. Photo courtesy of Kelly Cooper, Forman SCD
Crops in North Dakota have done better than their summer counterparts mostly because of the lack of 100 degree temps, but also due to the legacy of high water tables from previous years and the capillary water pull of most of our soils to supply crops during an extended dry period.