Many grain producers in Kentucky use a 3 crop in 2 year rotation of corn followed by small grain-soybeans, and commonly no-till the soybeans and corn in order to intensively use sloping land for continuous grain production. Because of the intensity of machinery traffic in this system, growers are concerned that continuous no-till management may cause compaction, and that such fields may need occasional primary tillage. In order to obtain' information regarding things situation, we conducted a test for 3 years on the farm of' Philip Lyvers, in Marion County, Kentucky, in a field which was being used in a corn-small grain-soybean rotation. Since the field had sizable areas of both Pembroke and Beasley soils, we made measurements on both soil s before beginning the study, and again, 3 years later.
Wells, Kenneth L. and Grove, John H., "The Effect of Three Tillage Systems on Bulk Density and Porosity of a Pembroke and a Beasley Soil After Three Years" (1987). Agronomy Notes. 99.