The appliance of science (not my choice of title!)

Greenkeeper International

This article reviewed the issue of the relationship between soil phosphorus and Poa annua and in particular criticised the research which had been carried out into it. It annoyed the eminent agronomist Jim Arthur who believed that stopping phosphorus applications would reduce annual meadow grass in golf greens. My argument was that since phosphorus was retained in the soil for centuries, this would have no effect on soils with a phosphorus content that was already high.

Download Soil phosphorus and annual meadow grass (10 MB)