Mycorrhizal fungi and turf health go hand in hand. The symbiotic relationships that exist between our turf grass plants and soil fungi are critical to producing a high performance, perennial grass dominated sward. Here we look at the benefits of mycorrhizal relationships in turf and the techniques greenkeepers can employ to encourage them.
From the very beginnings of the game of bowls, most clubs bowled on a green constructed largely of local top soil, built, prepared and seeded by the club members, perhaps with the help of a local gardener or farmer. Maintenance was largely mowing, turning the rinks on flat greens, keeping the surface clear of debris and worm casts and an occasional roll before a big match. In the autumn, a squad of members would descend on the green with forks to aerate or spike the green, before putting it to bed for the winter with a final cut and perhaps a bag of fertiliser.
Over the last few decades, routine applications of fungicides, high-salt synthetic fertilisers and ever-increasing topdressings of sand have left many UK greens biologically bankrupt. I see it time and again in soil analysis reports: textural classification coming back as just “Sand”. Very little in the way of silt or clay and sparse organic matter. No biological cushion.
Winter Greenkeeping Strategies have to a large extent been based on preventative fungicide, putting the green to bed and hoping for the best. This overlooks the huge opportunity greenkeepers have to make a real difference through applying some sound Winter Greenkeeping Strategies right through the closed months.
Sand Top Dressing - that ubiquitous and apparently simple greenkeeping operation indulged in by most clubs annually is actually a much more complex operation than most give it credit for. In this article John Quinn explains the mechanics of top-dressing. He explains what it can and can't do and why you must understand some soil science before top-dressing is considered.
