Following up on potassium

Last week, we discussed the role of potassium in high quality turf (see the July 14 PACE Turf Update), indicating that a target of 110 ppm potassium in the soil was desirable. More recent data analyses indicate that only 37 ppm Mehlich-3 K is needed for healthy turfgrass growth.

Some of you are interested in the level of potassium not only in the soil, but also in the tissues of good-performing turf. In this graph, we show that from our…