Loads applied to soil by agricultural machines can increase soil bulk density and reduce crop, production. Over 80% of a field may be trafficked at least once each year when producing corn or soybeans. When most field operations are performed, soil has a moisture content near field capacity and, therefore, is in a compactable condition. Changes in bulk density, cone index, and surface elevation caused by traffic were found to depend upon the tillage system used. Combine wheels depressed the soil surface from 1 to 4 cm. Reductions in growth rate and yield of corn indicate that tillage for seedbed preparation does not remove the effect of wheel tracks made during that tillage. Lighter machines, lower ground pressures, appropriate tillage, and controlled traffic can minimize soil compaction effects on crop production.


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    Title :

    Farm Equipment and Soil Compaction


    Additional title:

    Sae Technical Papers


    Contributors:
    Erbach, Don (author)

    Conference:

    37th Annual Earthmoving Industry Conference ; 1986



    Publication date :

    1986-04-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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