Figure 3. An example product label identifying the micronutrient sources and application rates.
Manufacturers often rate the effectiveness of each type of spray tip
as good, very good, excellent or not recommended, for specific applications (e.g., broadcast liquid fertilizer; contact and systemic
fungicides, herbicides and insecticides; …).
Since an application may, or may not result in a visual improvement in foliage color or turfgrass health even though test results indicate that one or more micronutrients are in the low or deficient
ranges, it may be advantageous to treat a limited amount of turf
www.stma.org
with a product of interest before making a broadcast application
over the entire sports field. ■
Dr. Tom Samples is an extension specialist for turfgrass management; Dr. John Sorochan is associate professor, turfgrass science and
management; and Adam Thoms is research leader, all at the University
of Tennessee in Knoxville. Brad Jakubowski is an instructor at Doane
College, Crete, NE.
SportsTurf 13
