Effect of Soil Moisture, Tillage Speed, Depth, Ballast Weight and, Used Implement on Wheel Slippage of the Tractor: A Review

Tractor wheel slippage is a critical parameter for fuel consumption and field performance and should not exceed 15%. Several attempts have been made to study the wheel slippage of the agricultural tractor in order to minimize it to acceptable levels during the tillage operations. There are many different types of implements for soil tillage, each one of them affects the wheel slippage in a different way. Moreover, several studies have found many operating conditions that can affect the wheel slippage significantly such as: soil moisture content, tillage speed, ballast weights and the type of implement used for tillage. This article reviews the relationship between them which gives possibility for further research to focus on the potential solutions to decrease the tractor driving wheel slippage which can positively affect the fuel consumption. Increase the additional mass of the tractor, decrease the air pressure in the tires, avoid tilling the soil that is too wet or too dry and, choose the right implement, speed and depth can decrease the tractor driving wheel slippage.