Choosing and evaluating soil improvements by subsoiling and compaction control.

This chapter aims to identify the basic types of soil disturbance possible with loosening equipment, how disturbance can be modified to suit requirements through implement selection and adjustment, and the extent to which field procedures can be modified for successful operation in situations with lighter tractors and less tractive power. Recent results from reduced inflation pressure and controlled traffic farming systems are reviewed and related to crop performance and environmental factors.