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| Web URL(s): | http://usgatero.msu.edu/v06/n10.pdf
Last checked: 05/18/2007
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Author(s): | St. John, Rodney;
Christians, Nick |
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| Author Affiliation: | St. John: Assistant Professor and Turfgrass Extension Specialist, Horticulture and Forestry Department, Kansas State University, Olathe, Kansas; Christians: Professor, Horticulture, Department of Horticulture, Iowa State University, Ames, Iowa |
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| Title: | Basic Cation ratios for sand-based greens |
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| Source: | USGA Turfgrass and Environmental Research Online. Vol. 6, No. 10, May 15 2007, p. [1-9]. |
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| Publishing Information: | Far Hills, NJ: United States Golf Association, Green Section |
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| # of Pages: | 11 |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Calcareous sands; Silica sands; Sand composition; Soil analysis; Cation exchange capacity; Cation exchange; Nutrient balance; Sand-based golf greens
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| Abstract/Contents: | "Recently, there has been an increased use of the Basic Cation Saturation Ratio (BCSR) theory for calcium (Ca), magnesium (Mg), and potassium (K) fertilizer recommendations for sand-based putting greens. The theory states that there is an "ideal-ratio" of the basic cations Ca, Mg, and K, and when the ratio is not "ideal", fertilizer applications must be made to correct the imbalance and promote plant health. The objective of this research was to determine if the BCSR theory applies to creeping bentgrass established on either calcareous or silica sand-based rootzones. The study's findings include: Sand-based putting greens have such low cation exchange capacities (CEC), that basic cation ratios are often misleading. Due to the dissolution of calcareous sand particles during the soil testing procedure, basic cation ratios created from calcareous sands will also be erroneous and misleading. From this research, it appears that creeping bentgrass can tolerate a wide range of basic cation saturation ratios and percentages in soil solution. In most cases, using the SLAN (sufficiency level of available nutrients) method of soil test interpretation would give better recommendations for Ca, Mg, and K fertility requirements of sand-based putting greens than the BCSR method." |
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| Language: | English |
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| References: | 12 |
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| See Also: | Other Reports from this USGA research project: 2003-02-243 |
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| Note: | Summary as abstract
Pictures, color
Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
St. John, R., and N. Christians. 2007. Basic Cation ratios for sand-based greens. USGA Turfgrass Environ. Res. Online. 6(10):p. [1-9]. |
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| Web URL(s):
http://usgatero.msu.edu/v06/n10.pdf
Last checked: 05/18/2007
Requires: PDF Reader |
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MSU catalog number: SB 433 .A1 A65 [online] |
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