This thesis examined the effect of continuous row-cropping on soil structure measured by bulk density and compaction ratings. Undisturbed core samples were collected from the selected sample sites to determine the bulk density. Compaction ratings were obtained by using a Proctor Penetrometer. A total of 192 soil samples were collected for this investigation. Comparisons of mean bulk densities, mean compaction ratings, and mean moisture percentages of the surface and Bt horizons of Blount and Pewamo soils in Delaware County, Indiana under three different field conditions: woods (untilled), field cultivated fields (continuous row-cropped), and plowed fields (continuous row-cropped) were made. This was done by calculating F-ratios and Bayesian Least Significant Difference ratios. Pearson's Product Moment Correlation' Coefficients were also calculated between selected parameters of the data. Conclusions drawn from these statistical analysis were discussed.
| Identifer | oai:union.ndltd.org:BSU/oai:cardinalscholar.bsu.edu:handle/181645 |
| Date | January 1977 |
| Creators | Maddox, Barbara Anne |
| Contributors | Van Meter, Donald E. |
| Source Sets | Ball State University |
| Detected Language | English |
| Format | vi, 62 leaves : ill. ; 28 cm. |
| Source | Virtual Press |
| Coverage | n-us-in |
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