Nichols, Dr. Mark L.

Historically, Farm Tillage Tools Were Designed Without Scientific Knowledge Of How Tools Work The Soil. Thus, A Tool Designed To Operate In One Soil Pulled By A Mule Might Not Operate Satisfactorily In Another Soil Or When Pulled By A Tractor At Higher Speeds. Traction And Flotation Problems Appeared With The Introduction Of Tractors. The Importance Of Developing A Scientific Approach To The Study Of Tillage And Traction Became Apparent During The Transition From Animal To Mechanical Power.