October 2017

SportsTurf provides current, practical and technical content on issues relevant to sports turf managers, including facilities managers. Most readers are athletic field managers from the professional level through parks and recreation, universities.

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www.spor 19 October 2017 // We are currently conducting studies to investigating how many times during the growing season this device can be used without sacrifi cing performance of the fi eld. The study is also investigating how much sand topdressing can be incorporated. Some athletic field managers will use colored sand for topdressing, especially during the season to help it blend in better with the playing surface. The most important key with using a colored sand is that the particle size will still match what is in the rootzone. Many colored sands are made up of smaller particle sizes than traditional topdressing sand, and this causes the fi eld to close off for drainage with time and repeated use of the smaller sand. Also, keep in mind that the colored sand is much more expensive than traditional sand, making one ask if the color is worth the cost? Topdressing can also dilute out the paint layer left from a logo or yard line markings on a fi eld. These layers can build up very quickly over time in the rootzone, especially in a stadium setting where the fi eld can't be shifted to move the painting around from one year to the next (Figure 7). Regular topdressing can help dilute these layers out and allow proper water infi ltration to continue. Proper topdressing rates and timing can improve the performance of any athletic fi eld as long a few simple practices are kept in mind. First, once you start never stop. Second, try to topdress with a product that will improve your drainage and not jeopardize stability. Finally, know your rates and don't apply too much sand topdressing to bury the turfgrass and cause harm on the playing surface, this is especially true during the season. When done correctly topdressing can improve the performance of an athletic fi eld for use in all weather conditions. /ST/ Adam Thoms, PhD, is assistant professor and extension specialist for turfgrass at Iowa State University; Nick Christians, PhD, is University professor of turfgrass management, in Ames. SOME ATHLETIC FIELD MANAGERS WILL PERFORM SOLID TINE AERIFICATION WEEKLY DURING THE SEASON, OR EVERY TIME THE FIELD HAS A COUPLE DAYS OF DOWNTIME. THE KEY IS BALANCING BEING AGGRESSIVE ENOUGH WITH SOLID TINE AERIFICATION, WHILE NOT BEING OVER AGGRESSIVE AND RUINING THE STABILITY OF THE FIELD. Tested for Toughness In the NFL Ideal for Football, Soccer, Baseball, Softball and Athletic Fields of All Stripes

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