• Effect of tillage on soil physical properties and crop production 

        Author(s):Abdi, Abdullahi Abdurahman
        Date Issued:1989
        Format:doctoral dissertations
        The objective of this study was to determine the effect of two tillage systems -- conventional tillage (CT) and reduced tillage (RT) -- for a three-year corn-corn-watermelon rotation on: 1) biological production of corn ...