Full TGIF Record # 86464
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Web URL(s):https://d.lib.msu.edu/etd/31741/OBJ/view/
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    Last checked: 04/09/2018
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Publication Type:
Material Type:Dissertation
Monographic Author(s):Nikolai, Thomas Anthony
Author Affiliation:Michigan State University
Monograph Title:Effects of Rolling and Fertility on Different Root Zones, 2002.
# of Pages:117
Publishing Information:Ph.D. Dissertation: Michigan State University
Collation:xiii, 104 pp.
Related Web URL:https://d.lib.msu.edu/etd/31741
    Last checked: 03/06/2020
    Notes: Item description page
Keywords:TIC Keywords: Golf courses; Greens mix; Dollar spot; Disease severity; Rolling; Golf greens; Root zone mixture; Physical properties of soil; Golf green construction; Topdressing; USGA recommendations; Organic matter; Fertilization program; Fertility; Phosphorus; Root zone; Nitrogen; Potassium; Calcium; Magnesium
Abstract/Contents:"Research greens constructed with different root zones: an 80:20 (sand: peat v/v) mixture constructed to USGA recommendations; an 80:10:10 (sand: soil: peat v/v) mixture 0.3m deep built with subsurface tile drainage; and an undisturbed sandy clay loam native soil green were established in 1993 with the specific purpose to compare among different soils managed under similar management regimes. Each green was split for lightweight green rolling that was split for fertility treatments. Rolling treatments consisted of rolled 3x/week and not rolled. Fertility treatments consisted of two nitrogen rates (146 and 293 kg ha-1 year-1 ) and three potassium rates (0, 195, and 390 K2O kg ha-1 year-1 ). The study took place 3-7 years after the greens were seeded with 'Penncross' creeping bentgrass (Agrostis palustris Huds.). All root zones were on a frequent sand topdressing program. The native soil root zone had higher levels of total-N, and available P, K, Ca, and Mg, than the soil-less 80:20 root zone. However, few significant differences resulted between the 80:20 root zone and the 80:10:10 root zone. The native soil root zone resulted in significantly more plant tissue K than the 80:20 root zone from 1997-1999. In 2000 no significant differences resulted from any of the root zones for any of the plant tissue nutrients. At that time the mean sand topdressing layer (STL) was 43mm deep and approximately 75% of the roots were located in the STL regardless of root zone. Additionally, there was an inverse relationship between the amount of fines in the root zone and dollar spot (Sclerotinia homoeocarpa) severity. Lightweight green rolling three times per week resulted in few statistically significant differences in soil physical properties. Lightweight rolling significantly increased ball roll distance and root mass in the STL, and reduced dollar spot, bird beak intrusions, broadleaf weeds, and localized dry spot. Nitrogen rate consistently resulted in significant differences in dollar spot counts, but the amount of time passing after nitrogen application appeared to be a factor. The higher rate of N resulted in fewer dollar spot counts when N fertility averaged 14 days after application while the lower N rate had less dollar spot when N fertility averaged 32 days after application. The lower rate of N had significantly greater ball roll distance than the higher N rate and the differences increased between the two N rates with differences of 8cm in 1998, 10 cm in 1999, and 19 cm in 2000. The higher N rate decreased soil test K and P from 1998-2000. Clipping yields and plant tissue analyses indicate that the decrease in soil K may be the result of increased growth and nutrient uptake related to the higher N rate. Results of plant tissue P were not consistent. Soil test K increased with increasing K2O fertility rates. Potassium had no effect on clipping weights but did result in increased root growth one year in the STL. Potassium had no effect on ball roll distance, dollar spot, color, quality, or localized dry spot."
Library of Congress
Subject Headings:
Turfgrasses -- Roots; Turfgrasses -- Fertilizers; Turf management
References:Chapter refs.
Resulting Publications:R=74233
See Also:See also related book, The Superintendent's Guide to Controlling Putting Green Speed, 2005, R=94696. R=94696
Note:"UMI Number: 3064284"
Variant title: Effects of Rolling and Fertility on Putting Green Root Zone Mixes
Advisor: Paul E. Rieke
Includes acknowledgments; p. v
Includes "List of tables"; pp. viii-xi
Includes "List of figures"; p. xii
Includes "Key to symbols or abbreviations"; p. xiii
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Nikolai, Thomas Anthony 2002. Effects of Rolling and Fertility on Different Root Zones. Ph.D. Dissertation: Michigan State University.
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    Last checked: 03/06/2020
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Special thanks for copyright permission granted by Thomas A. Nikolai

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