Document Type

Thesis - Open Access

Award Date

1963

Degree Name

Master of Science (MS)

Department

Agronomy

Abstract

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
Soil moisture
Soil percolation

Description

Includes bibliographical references

Format

application/pdf

Number of Pages

63

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