Thesis - Open Access
Master of Science (MS)
The impervious nature of claypan soils decreases the rate of water infiltration, air exchange, and root penetration. As a result, these soils are recognized as “problem soils” by farmers and research workers because of the associated tillage difficulties and low crop yields. Several methods or approaches have been devised in an attempt to overcome this inherent handicap to crop production. The methods presently used are most often centered around the planting of legumes in a crop rotation or the use of a subsoiler to mechanically break up the claypan. The purpose of this study was to measure the effect of holding open the mechanically fractured claypan with a wedge of organic matter.
Library of Congress Subject Headings
Soils -- South Dakota
Includes bibliographical references
Number of Pages
Kingsley, Quentin S., "The Effect of Organic Trenching on Grain Yields, Soil Moisture and Root Penetration on Claypan Soils in South Dakota" (1963). Electronic Theses and Dissertations. 2901.