Theses and Dissertations


Apisit Boupai

Issuing Body

Mississippi State University


Varco, Jac J.

Committee Member

Nagel, David

Committee Member

Cox, Michael S.

Committee Member

Barickman, T. Casey

Date of Degree


Document Type

Graduate Thesis - Open Access

Degree Name

Master of Science


College of Agriculture and Life Sciences


Department of Plant and Soil Sciences


Soil quality and health indicators are necessary to monitor and improve the agricultural sustainability. This experiment was conducted at Mississippi State, MS between 2015 and 2016. Soil samples were taken to determine bulk density, enzymatic activity, and total C and N. Results indicated greater bulk density, total C and N, and enzymatic activity for inter-row position than for within the corn row which was disturbed by strip-tillage. Soil bulk density tended to increase with soil depth; however, total C and N and total microbial activity decreased with depth both years. Total soil C and N increased from 2015 to 2016. Enzymatic activity was greatest at corn planting and decreased up thru four weeks apparently due to total C and N decomposition. Total C and N were related to bulk density and enzymatic activity because increase in soil C and N decreased the bulk density and increased the enzymatic activity values.