To Squat or Not to Squat: How Low can you Go?

The impact of farm equipment causing soil compaction is primarily a function of soil moisture at the time of traffic coupled with the total weight, axle load and tire pressure of the implement. By lowering the tire pressure, we reduce the impact of soil compaction up to a point which is a function of the ability of a tire to tolerate the load and speed in an under-inflated state.

 

Tire pressures in bias tires cannot be reduced for many reasons including the technology of the tire, how it stays on the bead, etc. Radial tires have the ability to reduce tire pressure and keep the integrity of the tire so long as it occurs under slow speeds operating in a straight line. Reducing tire pressures and running on the road greatly reduces safety and increases fuel consumption and tire wear. Although central inflation/deflation systems (CTIS) are becoming more common, the tire industry is still adjusting to farmers demand for reduced soil compaction through reduced tire pressures during field operations. Many producers are incorporating these reduced tire pressures as a whole or with CTIS systems and accepting that they may be voiding the warranty on the tires.