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| Publication Type:
| Refereed |
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| Author(s): | Bowman, D. C.;
Paul, J. L.;
Davis, W. B.;
Nelson, S. H. |
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| Author Affiliation: | Bowman, Paul and Davis: Deptartment of Environmental Horticulture, University of California, Davis, California; Nelson: Department of Horticulture Science, University of Saskatchewan, Saskatoon, Canada |
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| Title: | Rapid Depletion of Nitrogen Applied to Kentucky Bluegrass Turf |
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| Section: | Production and culture
Other records with the "Production and culture" Section
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| Source: | Journal of the American Society for Horticultural Science. Vol. 114, No. 2, March 1989, p. 229-233. |
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| Publishing Information: | Westport, Conn.: AVI Publishing Co. |
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| # of Pages: | 5 |
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| Keywords: | TIC Keywords: Nitrogen; Nitrogen deficiency; Nitrogen fertilizers; Nitrogen uptake; Poa pratensis; Soil sampling; Thatch
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| Abstract/Contents: | "The depletion of N applied to a moderately N-deficient Kentucky bluegrass (Poa pratensis L.) turf was measured using a soil sampling procedure. Nitrogen as either Ca (NO3)2 or (NH4)2SO4 was applied in solution at 5 g N/m2 and washed into the thatch and soil with an additional 0.3 cm of water. Both N forms were located primarily in the thatch and upper 1 cm of soil. The NO3 was present in the soil solution, while the NH4 was mainly exchangeable (86%). The concentrations of NO3 and NH4 in the soil solution were 452 and 56 μg N/ml, respectively, in the upper 1 cm of soil. Depletion of both NO3 and NH4 from the turf was very rapid, with 70% to 80% of the applied N disappearing during the first 24 hr. Essentially all of the applied N was depleted by 48 hr. Results using (15 NH4)2SO4 indicate that ~75% of the NH4 depletion is attributable to absorption by the turf. Similar results were obtained following fertilization of perennial ryegrass (Lolium perenne L.), tall fescue (Festuca arundinaceae Schreb.), and creeping bentgrass (Agrostis palustris Huds.)." |
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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):
Bowman, D. C., J. L. Paul, W. B. Davis, S. H. Nelson, D. C. Bowman, J. L. Paul, et al. 1989. Rapid Depletion of Nitrogen Applied to Kentucky Bluegrass Turf. J. Am. Soc. Hortic. Sci. 114(2):p. 229-233. |
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