soil conservation, erosion, soil managemant
Cooperative Extension Service, U.S. Dept. of Agriculture, South Dakota State University
Wind Erosion Emergency Tillage
Know Your Soil: Your Soil is a Factory. Factory or Soil, Both Need Management. Plant Nutrient Storehouse.
Erosion Cuts New Return: Why Erosion Occurs-How to Prevent It.
Erosion Control Methods and Structures:Strip Cropping. Barrier Strips. Contouring. Terraces. Stubble Mulching. How Much Residue.
Cropping Practices and Rotations: Crops and Cropping Systems. Tillage--Good and Bad. Rotation System.
Machines, Costs and Returns: A Choice of Implements. Planning Your Program. Tillage Considerations. Seeding Equipment. Not Enough Residue? Too Much Residue?
Examples of Programs.
Williamson, Edward J., "Conservation Tillage" (1976). SDSU Extension Circulars. 438.