PJB-2012-121
FACTOR ANALYSIS OF TILLAGE EFFECTS ON SOIL PROPERTIES OF GRANTSBURG SOILS IN SOUTHERN ILLINOIS UNDER CORN AND SOYBEAN
IMTIAZ HUSSAIN1 AND K.R. OLSON2
Abstract
Adoption of conservation tillage resulted in changes in soil properties, soil organic matter, soil nutrients. These soil variables were strongly correlated and could not be explained independently by the univariate analysis. The objectives of the study were to use the factor analysis for the identification of the factor pattern in soil properties and to examine the changes in factor scores in no-till (NT), chisel plow (CP) and moldboard plow (MP) tillage systems at different depths after 8 years of the tillage application and planting of corn and soybean on a sloping and previously eroded with a root restricting fragipan Grantsburg soil. The soil samples from the 0 to -5 and -5 to -15 cm soil depths were analyzed for the Ca, Mg, K, P, aggregate stability, particulate organic C, N and humified organic C and N. With factor analysis
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