Farmer invents tyre pressure system to boost soil health

摘要

Running tyres at lower pressures can slash the risk of soil damage. In the second part of our Canada special, Richard Allison visits one farmer who invented his own auto-inflation system to keep all his farm tyres at the optimum pressure.It just takes Ontario farmer Jake Kraayenbrink a few seconds to change the tyre pressures on his tractor and 24t twin-axle slurry tanker, ready to tread lightly across the field. High tyre pressures are necessary for travelling on roads between fields, but hard tyres are highly damaging to soils. Therefore, he reduces the pressure to increase the area of tyre in contact with the soil.