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| Web URL(s): | http://usgatero.msu.edu/v02/n24.pdf
Last checked: 4/2004
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Author(s): | Bigelow, Cale A.;
Bowman, Dan C.;
Cassel, D. Keith |
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| Author Affiliation: | Bigelow: Assistant Professor of Agronomy, Purdue University, West Lafayette, Indiana; Bowman: Associate Professor of Crop Science, North Carolina State University, Raleigh, North Carolina; and Cassel: Professor of Soil Science, North Carolina State University, Raleigh, North Carolina |
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| Title: | Inorganic soil amendments limit nitrogen leaching in newly constructed sand-based putting green rooting mixtures |
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| Source: | USGA Turfgrass and Environmental Research Online. Vol. 2, No. 24, December 15 2003, p. [1-11]. |
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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: Soil amendments; Inorganic amendments; Nitrogen; Leaching; Golf greens; Sand-based golf greens; Sand; Zeolites; Diatomaceous earth; Porous ceramics; Cation exchange capacity; Sphagnum peat moss
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| Abstract/Contents: | "Sand-based rootzones (> 80% by volume) are most often specified for modern golf course putting greens because they resist compaction and maintain drainage and air-filled porosity even under heavy traffic. Although sands provide favorable physical properties, nutrient retention is generally poor and soluble nutrients like nitrogen (N) are prone to leaching which can pollute the environment. Laboratory experiments were conducted at the North Carolina State University to evaluate several commercially available inorganic soil amendments: clinoptilolite zeolite, diatomaceous earth, two porous ceramics varying in cation exchange capacity (CEC), and sphagnum peat moss for their ability to limit N leaching in newly constructed sand rootzone mixtures. Findings include: All amendments significantly decreased ammonium (NH4+ ) leaching when incorporated at the 20% by volume rate. Ammonium losses could be decreased 27% to 88%, compared to unamended quartz sand and effects were directly proportional to the CEC of the amendments. Nitrate (NO3- ) losses were consistently high, and no amendment effectively decreased loss compared to unamended sand. Clinoptilolite zeolite and a calcined porous ceramic, which had the highest CECs, were selected to further study the effects of amendment incorporation rate and depth on N leaching. At the 10% amendment rate, only 17% to 33 % of applied NH4+ leached from the amended sands and uniform distribution through the entire 12-inch rootzone depth was more effective than placement within the upper 1 or 6 inches." |
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| Language: | English |
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| References: | 28 |
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| See Also: | Other Reports from this USGA research project: 1996-07-094 |
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| Note: | Tables
Pictures, color
Summary as abstract |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Bigelow, C. A., D. C. Bowman, and D. K. Cassel. 2003. Inorganic soil amendments limit nitrogen leaching in newly constructed sand-based putting green rooting mixtures. USGA Turfgrass Environ. Res. Online. 2(24):p. [1-11]. |
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| Web URL(s):
http://usgatero.msu.edu/v02/n24.pdf
Last checked: 4/2004
Requires: PDF Reader |
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MSU catalog number: SB 433 .A1 A65 [online] |
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