Date of this Version
Keck, M.A. 2020. Reducing Mowing Requirements in Home Lawn and Golf Course Turfgrass. MS Thesis, University of Nebraska-Lincoln, Lincoln, NE.
Turfgrass systems are routinely managed by frequent mowing to increase aesthetics and function. Mowing is resource intensive with a high labor and energy demand. Reducing the number of mowings events in a growing season will decrease the labor and energy but may reduce quality as well. Previous work has looked at reducing mowing by changing the frequency and by using a plant growth regulator (PGR). Limited information is available about how to reduce mowing while maintaining acceptable quality. We looked at two different management practices to reduce mowing and maintain quality. The first study evaluated seven different mowing frequencies at two mowing heights (7.6 cm and 5.1 cm). Dry clipping yield mass was measured and the total number of mowing events were recorded from the different treatments. Weekly visual quality ratings were recorded using the NTEP scale. Removing one-third of the leaf biomass at mowing minimized mowing requirements while it sustained turfgrass quality rating. Mowing more frequently increased further improved turfgrass quality. The second study examined lengthening the longevity of suppression from two PGRs by the inclusion of various surfactants with the application Clipping suppression was modeled with sine wave regression to determine the suppression of both PGRs and for comparison of clipping yield suppression provided by the PGR applied alone. Visual quality declined in with the straight block co-polymer surfactant.
Advisor: William C. Kreuser