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DOI: | 10.4141/cjps84-052 |
Web URL(s): | http://pubs.aic.ca/doi/pdfplus/10.4141/cjps84-052 Last checked: 09/29/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Nelson, S. H. |
Author Affiliation: | Saskatchewan University, Saskatoon, Saskatchewan, Canada |
Title: | Response of Kentucky bluegrass (Poa pratensis L.) to amount and frequency of nitrogen application |
Source: | Canadian Journal of Plant Science. Vol. 64, No. 2, 1984, p. 369-374. |
Publishing Information: | Ottawa: Agricultural Institute of Canada |
# of Pages: | 6 |
Keywords: | TIC Keywords: Poa pratensis; Nitrogen; Ammonium nitrate
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Abstract/Contents: | Ammonium nitrate, at varying rates and frequency of application between 15 May and 15 August in 1980 and 1981, and a single annual dose of triple superphosphate, was applied to established turf (equal parts of cultivars Baron, Birka and Park). An annual rate as low as 0.8 kg N/100 m2 gave satisfactory low maintenance color during summer, but even minimal color response in spring and autumn required a rate of at least 1.25 kg N/100 m2. N greater than 2.5 kg/100 m2 annually was considered excessive although color continued to increase up to the 5-kg rate before the effect started to level off. Yield showed essentially the same trend. Split applications did not appreciably affect overall yield, but are recommended to reduce growth surges from the heavier application. Very poor color and growth were noted at rates below 0.8 kg N/100 m2 annually. Root growth declined markedly as the N rates increased from 0.8 kg to 3.33 kg/100 m2 annually then declined at a reduced rate. |
Language: | English |
References: | Unknown |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Nelson, S. H. 1984. Response of Kentucky bluegrass (Poa pratensis L.) to amount and frequency of nitrogen application. Can. J. Plant Sci. 64(2):p. 369-374. |
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| DOI: 10.4141/cjps84-052 |
| Web URL(s): http://pubs.aic.ca/doi/pdfplus/10.4141/cjps84-052 Last checked: 09/29/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: SB 1 .C3 |
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