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| DOI: | 10.4141/cjps75-084 |
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| Web URL(s): | http://pubs.aic.ca/doi/pdf/10.4141/cjps75-084
Last checked: 08/06/2013
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Smith, A. D.;
Lutwick, L. E. |
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| Author Affiliation: | Research Station, Agriculture Canada, Lethbridge, Alberta |
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| Title: | Effects of N fertilizer on total-N and NO3-N content of six grass species |
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| Section: | Forage
Other records with the "Forage" Section
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| Source: | Canadian Journal of Plant Science. Vol. 55, No. 2, April 1975, p. 573-577. |
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| Publishing Information: | Ottawa, Ontario, Canada: Agricultural Institute of Canada |
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| # of Pages: | 5 |
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| Related Web URL: | http://pubs.aic.ca/doi/abs/10.4141/cjps75-084
Last checked: 08/06/2013
Notes: English abstract only |
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| Keywords: | TIC Keywords: Grasses; Nitrogen fertilizers; Plant response; Nitrogen level
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| Abstract/Contents: | "Total-N and NO3-N content of forage were determined for six grass species - timothy (Phleum pratense L.); crested wheatgrass (Agropyron cristatum (L.) Gaertn.); intermediate wheatgrass (Agropyron intermedium (Host) Beauv.); stream-bank wheatgrass (Agropyron riparium Scribn. and Smith); bromegrass (Bromus inermis Leyss.); and Russian wild ryegrass (Elymus junceus Fisch.). The grasses were fertilized with ammonium nitrate in early spring and were sampled at four levels of applied N - 0, 185, 550, and 940 kg/ha - and at three stages of maturity - early heading, anthesis, and seed-set. Total-N and NO3-N increased in all grasses with increasing levels of N fertilizer; Russian wild ryegrass showed the greatest increase and timothy the least. As maturity advanced, total-N content decreased. Total-N contents were similar in crested wheatgrass, intermediate wheatgrass, and streambank wheatgrass. As maturity advanced, the NO3-N content of fertilized timothy, crested wheatgrass, and bromegrass decreased while that of Russian wild ryegrass increased. The NO3-N content of intermediate wheatgrass and of stream-bank wheatgrass was highest at anthesis. At 0 and 185 kg N/ha, the NO3-N content was well below the lethal level for ruminants, but at the two higher N fertilizer levels it often exceeded the lethal level. Timothy can be considered a low, Russian wild ryegrass a very high, and the other four grasses high, NO3-N accumulators." |
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| Language: | English |
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| References: | 13 |
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| Note: | Abstract also appears in French
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Smith, A. D., and L. E. Lutwick. 1975. Effects of N fertilizer on total-N and NO3-N content of six grass species. Can. J. Plant Sci. 55(2):p. 573-577. |
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| DOI: 10.4141/cjps75-084 |
| Web URL(s):
http://pubs.aic.ca/doi/pdf/10.4141/cjps75-084
Last checked: 08/06/2013
Requires: PDF Reader |
| 
MSU catalog number: b2210781a |
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