1 resultado para Terbruggen, A. J. L., Baron Van den Bogaerde Van, 1787-1855,

em Digital Repository at Iowa State University


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The project goal was to compare yields of three different tillage systems on a sloping, moderately well drained soil (Nira) and on a nearly level, poorly drained soil (Kalona) in a continuous corn and a corn-soybean system. The plots began in 1990.