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| Web URL(s): | https://gsrpdf.lib.msu.edu/?file=/2000s/2004/040509.pdf
Last checked: 01/25/2017
Requires: PDF Reader |
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| Publication Type:
| Professional |
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| Author(s): | Hartwiger, Chris |
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| Author Affiliation: | Agronomist, Southeast Region, USGA Green Section |
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| Title: | The importance of organic matter dynamics: How research uncovered the primary cause of secondary problems |
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| Source: | USGA Green Section Record. Vol. 42, No. 3, May/June 2004, p. 9-11. |
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| Publishing Information: | Far Hills, NJ: United States Golf Association, Green Section |
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| # of Pages: | 3 |
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| Keywords: | TIC Keywords: Organic matter; Golf greens; Golf green construction; Root zone; Physical properties of soil; Aerification; Sand topdressings; Golf green maintenance
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| Abstract/Contents: | Discusses the history of aeration on putting greens. Presents issues faced by superintendents in the 1990's when dealing with aeration and the demands of golfers and improved play quality. Discusses Dr. Bob Carrow's hypothesis for the cause of summer bentgrass decline. Explains that the formation of a rootzone and organic matter layer and includes several factors which may inhibit the rate of development. Discusses the problem of having too much organic matter which leads to poor oxygen content in the soil. Defines two problems caused by high organic matter content as "oxygen content to decrease, saturated hydraulic conductivity (SHC) to decrease, and water content to increase" and "rapid change in the `nature' of the organic matter from structured OM [organic matter] in the form of live roots to an unstructured frorm in dead roots." Describes the process which occurs when temperatures remain high causing root systems to die. Lists Dr. Carrow's goals for a five-year project when dealing with determining the best aeration processes and cultivation. States that "the surface zone in a sand-based putting green, where most roots grow and the majority of fresh organic matter is deposited, controls the SHC [saturated hydraulic conductivity] for the root zone". Finds that core aeration was the best treatment for reducing the amount of organic matter in the rootzone. States cultivation with one-quarter inch diameter holes increases the SHC in the rootzone. Suggests non-disruptive cultivation during periods of high temperatures. Presents an improved SHC for 5 to 8 weeks when using hollow-tine aeration and half-inch to 5/8 inch diameter holes. Lists examples of ways information given in this article can be used by you. |
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| Language: | English |
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| References: | 7 |
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| See Also: | Other items relating to: TOPDRS |
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| Note: | Pictures, color |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hartwiger, C. 2004. The importance of organic matter dynamics: How research uncovered the primary cause of secondary problems. USGA Green Sec. Rec. 42(3):p. 9-11. |
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| Web URL(s):
https://gsrpdf.lib.msu.edu/?file=/2000s/2004/040509.pdf
Last checked: 01/25/2017
Requires: PDF Reader |
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MSU catalog number: SB 433.15 .U84 |
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