P, Poa, and bentgrass
May 13, 2026
If you are interested in phosphorus (P) and the competition between bentgrass and Poa annua, our Super Journal article on the "Role of phosphorus in suppression of Poa annua on bentgrass greens" tells the story of bentgrass greens at Talega Golf Club.
No P was applied for five years after planting. By the fifth year after planting, Mehlich-3 P dropped below 20 ppm and Olsen P was below 5 ppm. At that time, the bentgrass showed classic P deficiency symptoms.…