Full TGIF Record # 310250
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Web URL(s):https://scisoc.confex.com/crops/2019am/meetingapp.cgi/Paper/121244
    Last checked: 01/31/2020
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Patton, Aaron J.; Braun, Ross C.
Author Affiliation:Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN
Title:Measurement of turf height using a laser distance device
Section:C05 turfgrass science
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Turf ecology and management oral III: Culture, stress & rhizosphere ecology
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Meeting Info.:San Antonio, Texas: November 10-13, 2019
Source:ASA, CSSA and SSSA International Annual Meetings. 2019, p. 121244.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Keywords:TIC Keywords: Clipping weight; Crown height; Equipment design; Equipment evaluation; Equipment modification; Laser levelling; Measurement; Mowing height; Yield response
Abstract/Contents:"Growth or yield is an important characteristic to measure in crop science experiments. Turf researchers often use rulers or harvest clippings with mowers to measure growth and yield, respectively. Rising plate meters or disk meters are used as a non-destructive measurement of forage canopy height to estimate herbage biomass available for livestock feeding. Using the rising plate concept and new technology, our objective was to develop an easy-to-construct, low-cost device that could rapidly and accurately measure canopy height (>2 cm) and estimate yield in turf field experiments. A device with a floating platform and a laser distance measurement tool was constructed with a $170 budget. The device was able to measure turf canopy height of plots freshly mown from tested bench heights of 4.9 to 10.2 cm. The device was advantageous for comparing the growth of turfgrass species, the growth of cultivars with contrasting growth habits, and turf response from nitrogen fertilizer applications. The device, which outputs data via Bluetooth to the nearest 0.1 mm, correlated well with other turf canopy height measuring tools including the POGO, TurfCheck II, and a hand ruler but had a lower coefficient of variation. Further, there was a strong relationship across experiments (r2=0.66 to 0.94) between weekly growth measurements using the device and clipping yield indicating that this device that collects approximately 18 measurements per minute allowing for 1.8 s/minute data collection (includes 5 pre- and 5 post-mowing measurements) could be used instead of the more labor intensive practice of harvesting and weighing clippings at a rate of 0.2 plot/minute."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Patton, A. J., and R. C. Braun. 2019. Measurement of turf height using a laser distance device. Agron. Abr. p. 121244.
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    Last checked: 01/31/2020
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