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| DOI: | 10.4141/cjps89-061 |
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| Web URL(s): | http://pubs.aic.ca/doi/pdfplus/10.4141/cjps89-061
Last checked: 10/01/2015
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Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Belanger, G.;
Richards, J. E.;
Walton, R. B. |
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| Author Affiliation: | Research Station, Agriculture Canada,New Brunswick Canada |
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| Title: | Effects of 25 Years of N, P and K Fertilization on Yield, Persistence and Nutritive Value of a Timothy Sward. |
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| Source: | Canadian Journal of Plant Science. Vol. 69, April 1989, p. 501-512. |
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| Publishing Information: | Ottawa: Agricultural Institute of Canada |
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| # of Pages: | 13 |
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| Keywords: | TIC Keywords: Nitrogen; Phosphorus; Potassium; Fertilization; Persistence; Phleum pratense
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| Abstract/Contents: | "The effects of over 25 yr of levels of applied N, P and K on forage DM yield, crude protein content, in vitro digestibility (IVD), botanical composition and persistence of a timothy (Phleum pratense L.) sward were assessed in a long-term field experiment on an acidic Riverbank L. Ammonium nitrate (0, 90, 180, 270 kg N ha-1), superphosphate (0, 15, 29, 44 kg P ha-1) and muriate of potash (0, 47, 94, 141 kg K ha-1) were applied annually in all possible combinations to a timothy sward since 1960. In the first 3 yr of the experiment, only N and K were required for maximum yield and persistence of timothy. The requirement for applied P, however, increased with time; able forage DM yield increases. After 25 yr, the productivity of the timothy sward was dependent upon a balanced application of all three macronutrients; absence of any one nutrient resulted in little or no response to applications of the other nutrients. The long-term persistence of timothy was solely dependent on K fertilization. The proportion of bentgrass and bluegrass species declined with increasing levels of applied K while that of timothy increased. The change in botanical composition due to applied N and K significantly affected IVD and crude protein content." |
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| Language: | English |
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| References: | 24 |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Belanger, G., J. E. Richards, and R. B. Walton. 1989. Effects of 25 Years of N, P and K Fertilization on Yield, Persistence and Nutritive Value of a Timothy Sward.. Can. J. Plant Sci. 69:p. 501-512. |
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| DOI: 10.4141/cjps89-061 |
| Web URL(s):
http://pubs.aic.ca/doi/pdfplus/10.4141/cjps89-061
Last checked: 10/01/2015
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: SB 1 .C3 |
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