Document Type

Thesis - University Access Only

Award Date


Degree Name

Master of Science (MS)

Department / School



The Homestead Acts of the early 19th century resulted in the formation of 65 ha (160 acre) farms. Many of these farms had small areas where livestock were confined. Early livestock activities near these building sites may have a large impact on soil phosphorus (P) concentrations for a half-century or longer. Present-day soil fertility management decisions may be affected by these building site locations. This study examines the relationship of farm building site locations, landscape positions, and soil electrical conductivity to elevated soil P levels. Topography, soil electrical conductivity, soil grid information, and historical data were collected for twelve fields in eastern South Dakota. Analysis revealed that both past and present building site locations have an impact on soil P. A relationship between landscape position and soil P was not observed. Research from this project indicates that soil P recommendations can be improved with the knowledge of previous field history.

Library of Congress Subject Headings

Soils -- Phosphorus content -- South Dakota Soils -- Sampling -- South Dakota Soil fertility Soil mapping



Number of Pages



South Dakota State University