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Understanding How Soils Affect Grazing

Understanding How Soils Affect Grazing. Bob Hendershot State Grassland Conservationist USDA-Natural Resources Conservation Service. Text available online at http://www.statlab.iastate.edu/soils/soildiv/ surveys/onlineman.html#oh.

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Understanding How Soils Affect Grazing

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  1. Understanding How Soils Affect Grazing Bob Hendershot State Grassland Conservationist USDA-Natural Resources Conservation Service

  2. Text available onlineat http://www.statlab.iastate.edu/soils/soildiv/ surveys/onlineman.html#oh

  3. Managed Grazing Creates A Healthy Pasture With A Canopy Of Sod And A Thick, Deep Root System To Hold The Soil.

  4. Soil Survey Information • Flooding • Average daily temperatures • Average number of growing days • Freeze dates • Growing season • Yields per soil map unit • Monthly precipitation and snowfall

  5. SOILS FOR FORAGES Soil is a fixed resource, match the soil to: 1. Species selection

  6. SOILS FOR FORAGES Soil is a fixed resource, match the soil to: 1. Species 2. Management level

  7. SOILS FOR FORAGES Soil is a fixed resource, match the soil to: 1. Species 2. Management level 3. Grazing System

  8. SOILS FOR FORAGES Soil is a fixed resource, match the soil to: 1. Species 2. Management level 3. Grazing System 4. Hay Production

  9. Soil Suitability Group A. Few limitations

  10. Soil Suitability Group A. Few limitations B. Low AWC because of stones

  11. Soil Suitability Group A. Few limitations B. Low AWC because of stones C. Wetness limitations

  12. Soil Suitability Group A. Few limitations B. Low AWC because of stones C. Wetness limitations D. Organic Soils

  13. Soil Suitability Group A. Few limitations B. Low AWC because of stones C. Wetness limitations D. Organic Soils E. Shallow soils < 20 inches

  14. Soil Suitability Group A. Few limitations B. Low AWC because of stones C. Wetness limitations D. Organic Soils E. Shallow soils < 20 inches F. Restricted rooting depth

  15. Soil Suitability Group A. Few limitations B. Low AWC because of stones C. Wetness limitations D. Organic Soils E. Shallow soils < 20 inches F. Restricted rooting depth G. Unfavorable chemical properties

  16. Soil Suitability Group A. Few limitations B. Low AWC because of stones C. Wetness limitations D. Organic Soils E. Shallow soils < 20 inches F. Restricted rooting depth G. Unfavorable chemical properties H. Unsuitable soils

  17. Important Soil Properties for Plant Growth • Organic Matter content • Surface texture • Soil structure • Soil depth • Subsoil pH • Plant available soil water • Natural soil drainage • Topography

  18. Topography

  19. Soils affect fencing, lanes and water • Physical and chemical properties corrosion of steel and concrete • Depth of bedrock • Depth of soil water table • Rock fragment greater than 3 inches • Soil strength

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