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Stamp out soil compaction

“The ‘stamp out soil compaction’ campaign has been launched to demonstrate how the right choice of tyres and maintaining tyre pressures can help to minimise soil compaction. The first machinery test used a KUHN Optimer XL 5000 to show how reducing pressures by almost half the recommended road inflation reduced soil compaction and improved the operating efficiency of the tractor and the cultivator.

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“The ‘stamp out soil compaction’ campaign has been launched to demonstrate how the right choice of tyres and maintaining tyre pressures can help to minimise soil compaction. Continental has also developed a mobile app to help operators choose the correct pressure for any given load,” says Continental’s agricultural tyre specialist, Richard Hutchins.

Working with ADAS soil scientist John Williams, Continental has highlighted that up to 30% of soils in the UK are severely degraded and that 39% of the cost attributed to compaction could be reduced by choosing the correct tyres and running machines at the optimum pressure for load.

The first machinery test used a KUHN Optimer XL 5000 to show how reducing pressures by almost half the recommended road inflation reduced soil compaction and improved the operating efficiency of the tractor and the cultivator.

On a stubble field, the rear tyres of a Fendt 720 were set to 9 psi and the front to 12 psi. “This is less than half what the tractor could operate with on the road, and it demonstrates the difference needed to operate at the right pressure for load when using large implements,” he says.

In contrast, the same tractor was also run at 21 psi in both the front and rear tyres. “The tyre slip increased dramatically when the pressures were increased, rising from below 10% to above 40%. The tractor was visibly struggling for grip and was leaving skid marks in the soil. A greater percentage of the overall weight was being applied to a smaller surface area which severely compacted the soil,” he says.

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