Wetting Agents for Turf
Wetting Agents (Wetters) are surfactants. They reduce the surface tension of water, helping it to spread further and 'wet' surfaces. A wetting agent enables the water to penetrate the soil faster, moving it away from the sward and deeper into the rootzone. When used in foliar fertiliser applications they improve liquid contact with the leaf and the take up of nutrients.
Wetting Agents can improve the ability of soil to retain moisture. With effective use of wetting agents, irrigation may be reduced and sports pitches will can benefit from firmer playing surfaces and more consistent turf.
Dry Patch (water repellent soil) is a common problem of turf, with a number of possible causes. The most common reason for soils becoming water-repellent (hydrophobic) is through the natural build-up of waxy organic coatings on soil particles (usually through the action of fungal mycelium).