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Browsing by Author "Cassel, D. K."

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  • Ridge tillage and contour natural grass barrier strips reduce tillage erosion
    Thapa, B. B.; Cassel, D. K.; Garrity, Dennis P. (Elsevier B.V., 1999)
    This study compares the effects of four tillage systems on tillage erosion (downslope soil translocation): moldboard plough versus ridge tillage combined with an open field or contour natural grass barrier strips. The results show that both ridge tillage and the grass barrier strips significantly reduce soil loss.
  • Tillage effects on corn production and soil physical conditions
    Cassel, D. K.; Raczkowski, C. W.; Denton, H. P. (Madison, WI: Soil Science Society of America, 1995)
    This study compares four tillage methods on a highly-erodible soil in the Piedmont of the southeastern United States. The tillage methods left varying levels of surface residue: no-till (NT) had 75-87% residue coverage; 38-27% for chisel plow (CP), and 1% residue cover with moldboard plow-disk (MP) treatment. Due to decreased crusting and runoff and increased infiltration for conservation tillage practices, yields increased. Average yields were 1.23 Mg ha:1 (MP); 2.97 Mg ha:1 (NT); 2.44 Mg ha:1 (CP); and 3.69 Mg ha:1 (In-row subsoiling; one year only)