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| Web URL(s): | https://www.dl.sciencesocieties.org/publications/cs/articles/43/1/272
Last checked: 05/05/2017
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https://www.dl.sciencesocieties.org/publications/cs/pdfs/41/1/272
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| Publication Type:
| Refereed |
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| Author(s): | Guillard, Karl;
Dest, William M. |
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| Author Affiliation: | Department of Plant Science, University of Connecticut, Storrs, CT |
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| Title: | Extractable soil phosphorus concentrations and creeping bentgrass response on sand greens |
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| Section: | Turfgrass science
Other records with the "Turfgrass science" Section
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| Source: | Crop Science. Vol. 43, No. 1, January/February 2003, p. 272-281. |
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| Publishing Information: | Madison, WI: Crop Science Society of America |
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| # of Pages: | 10 |
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| Keywords: | TIC Keywords: Sand-based golf greens; Root weight; Shoot density; Thatch; Phosphorus; Chemical properties of soil; Agrostis stolonifera; Golf greens; Growth; Nutrient availability; Fertilization
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| Abstract/Contents: | "Few studies have directly related turfgrass growth and quality responses to extractable soil P concentrations in sand greens. A 3-yr field experiment was conducted on a sand-based putting green to determine creeping bentgrass (Agrostis stolonifera L.) growth and quality responses to extractable soil P. Extractable soil P concentrations were obtained by using the modified-Morgan, Mehlich-1, and Bray-1 extractants. Critical extractable P concentrations (above which there is a low probability of response to increasing soil P concentrations) for shoot counts, thatch thickness, relative clipping yields, quality ratings, P deficiency ratings, tissue P concentrations, and root weights were determined using Cate-Nelson (CN) and quadratic response and plateau (QRP) models. Both models fit the data relatively well in most cases (R2 values from 0.12 to 0.89), and critical concentrations for the QRP models were always greater than the CN models. Critical extractable P concentrations were lowest for the modified-Morgan extractant (1.4 to 12.0 mg kg-1) and greatest for the Mehlich-1 extractant (14.1 to 63.6 mg kg-1). Application of estimated critical extractable P concentrations in this study could be used to substantiate observed responses or explain lack of responses in other previously reported creeping bentgrass P studies. We found better model fits with modified-Morgan extractable P for bentgrass quality ratings, deficiency ratings, and tissue P concentrations than with P extracted by the Mehlich or Bray methods. This suggests that the modified-Morgan extractant may have advantages over stronger-acid extractants when used on sand-based media. The results can be used to revise or update existing P fertilization recommendations for bentgrass grown on sand-based media." |
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| Language: | English |
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| References: | 31 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Guillard, K., and W. M. Dest. 2003. Extractable soil phosphorus concentrations and creeping bentgrass response on sand greens. Crop Sci. 43(1):p. 272-281. |
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| Web URL(s):
https://www.dl.sciencesocieties.org/publications/cs/articles/43/1/272
Last checked: 05/05/2017
Access conditions: Item is within a limited-access website
https://www.dl.sciencesocieties.org/publications/cs/pdfs/41/1/272
Last checked: 05/05/2017
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: SB 183 .C7 |
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