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| Web URL(s): | http://turf.rutgers.edu/research/abstracts/symposium2007.pdf#page=43
Last checked: 11/28/2007
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Hamel, Stephanie C.;
Provance-Bowley, Mary;
Heckman, Joseph R. |
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| Author Affiliation: | Department of Plant Biology and Pathology, Rutgers University |
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| Title: | Predicting need for phosphorus by soil testing during seeding of cool-season grasses |
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| Section: | Poster presentations
Other records with the "Poster presentations" Section
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| Meeting Info.: | Cook College, Rutgers, NJ: January 11-12, 2007 |
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| Source: | Proceedings of the Sixteenth Annual Rutgers Turfgrass Symposium. Vol. 16, 2007, p. 42. |
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| Publishing Information: | New Brunswick, NJ: Center for Turfgrass Science, Cook College, Rutgers, The State University of New Jersey |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Soil testing; Phosphorus; Seeding; Cool season turfgrasses; Nutrient availability; Poa pratensis; Festuca arundinacea; Lolium perenne; Phosphorus fertilizers
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| Abstract/Contents: | "Recent changes in soil testing methodology, the important role of P fertilization in early establishment and soil coverage, and new restrictions on P applications to turf suggest a need for soil test calibration research on Kentucky bluegrass (Poa pratensis L.), tall fescue (Festuca arundinacea Schreb), and perennial ryegrass (Lolium perenne L.). Greenhouse and field studies were conducted for 42 days to examine the relationship between soil test P levels and P needs for rapid grass establishment using 23 New Jersey soils with Mehlich-3 extractable P levels ranging from 6 to 1238 mg kg-1. Soil tests (Mehlich-1, Mehlich-3, and Bray-1) for extractable P were performed by inductively coupled plasma-atomic emission spectroscopy (ICP) (only Mehlich-3 data is shown). Mehlich-3 extractable P and Al were measured to evaluate the ratio of P to Al as a predictor of need for P fertilizer. Kentucky bluegrass establishment was more sensitive to low soil P availability than tall fescue or perennial ryegrass. Soil test extractants chlich-1, Bray-1 or Mehlich-3 were each effective predictors of the need for P fertilization (only Mehlich-3 data is shown). The ratio of P to Al (Mechlich-3 P/Al %) was a better predictor of tall fescue and perennial ryegrass establishment response to P fertilization than soil test P alone. The Mehlich-1, Bray-1, and Mehlich-3 soil test P critical levels for clipping yield response were in the range of 170 to 280 mg kg-1, depending on the soil test extractant, for tall fescue and perennial ryegrass (only Mehlich-3 data is shown). The Mehlich-3 P/Al (%) critical level was 42% for tall fescue and 33% for perennial ryegrass. Soil test critical levels, based on estimates from clipping yield data, could not be determined for Kentucky bluegrass using the soils in this study. Soil testing for P has the potential to aid in protection of water quality by helping to identify sites where P fertilization can accelerate grass establishment and thereby prevent soil erosion, and by identifying sites that do not need P fertilization, thereby preventing further P enrichment of soil and runoff. Since different grass species have varying critical P levels for establishment, both soil test P and the species should be incorporated into the decision-making process regarding P fertilization." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hamel, S. C., M. Provance-Bowley, and J. R. Heckman. 2007. Predicting need for phosphorus by soil testing during seeding of cool-season grasses. Proc. Annu. Rutgers Turfgrass Symp. 16:p. 42. |
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| Web URL(s):
http://turf.rutgers.edu/research/abstracts/symposium2007.pdf#page=43
Last checked: 11/28/2007
Requires: PDF Reader |
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MSU catalog number: SB 433 .R88 |
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