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| Web URL(s): | http://archive.lib.msu.edu/tic/rpr/1985/7701,%20Michigan%20State,%20Branham.PDF
Last checked: 02/04/2015
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Material Type: | Manuscript |
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| Monographic Author(s): | Branham, Bruce; Gaussoin, Roch |
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| Author Affiliation: | Department of Crop & Soil Science, Michigan State University, East Lansing, Michigan |
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| Monograph Title: | The Effect of Seven Management Factors and Their Interaction on the Competitive Ability of Annual Bluegrass and Creeping Bentgrass: [1985 Annual Progress Report], 1985. |
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| Publishing Information: | East Lansing, Michigan: Department of Crop & Soil Science, Michigan State University |
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| # of Pages: | 11 |
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| Collation: | [11] pp. |
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| Abstract/Contents: | "Annual bluegrass is the predominant turfgrass found on golf courses in the Northeastern region of the United States. Annual bluegrass is not planted intentionally but is a weed that is very competitive under golf course management. The preferred species for golf course greens and fairway is creeping bentgrass. These studies were designed to measure the influence of seven management factors and their interactions on the competitive balance between the two species. Two main field studies are being conducted to examine these seven factors. One study contains five factors of irrigation (daily, 3 times per week, or irrigation at wilt); fertility (2 lbs N/M/YR or 6 lbs N/M/YR); clipping removal or return; plant growth regulator (flurprimidol at 1 lb AI/A, mefluidide at 0.125 lb AI/A, or a check); and overseeding with bentgrass or no overseeding. This five factor study has been conducted for two years at the Hancock Turfgrass Research Center in East Lansing, MI. The results indicate that removing clippings causes the greatest reduction in annual bluegrass population with a 14.2% decrease. The only other factor that caused a significant decrease in annual bluegrass populations was low nitrogen fertility, 2 lbs N/M/YR, which caused a 12.2% decrease in annual bluegrass. There was, however, a significant three interaction between clipping removal, irrigation, and fertility. Plots where clippings were removed, fertility was at 2 lbs N/M/YR and irrigation occurred at wilt had a significantly lower amount of annual bluegrass with a 22.8% decline. The other interesting aspect of this three way interaction was that where irrigation was applied daily and fertility was low, the clipping treatment was not significant. Whether clippings are removed or returned, significant reductions in the annual bluegrass population can be achieved with low fertility and daily irrigation. A second study examining the same irrigation and clipping treatments along with compaction and coring treatments found only compaction to be significant. Compacted plots has a 9.6% increase in annual bluegrass while noncompacted plots had a 5.4% decrease. A final field study was designed to determine the effects of flurprimidol, a plant growth regulator which is claimed to give a competitive advantage to creeping bentgrass, on the rate of spread of creeping bentgrass. Results are preliminary but seem to indicate that flurprimidol does not encourage the spread of creeping bentgrass in an annual bluegrass turf." |
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| Language: | English |
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| References: | 0 |
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| See Also: | See also related summary article "The effect of seven management factors and their interaction on the competitive ability of annual bluegrass and creeping bentgrass" Annual Turfgrass Research Report [USGA/GCSAA], 1985, p. 5-6, R=7701. R=7701 |
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| Note: | "November 1, 1985"
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
No defined citation format for TGIF #: 254071 |
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| Web URL(s):
http://archive.lib.msu.edu/tic/rpr/1985/7701,%20Michigan%20State,%20Branham.PDF
Last checked: 02/04/2015
Requires: PDF Reader |
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