Full TGIF Record # 19928
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Web URL(s):http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1990.tb01966.x/epdf
    Last checked: 10/02/2015
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Publication Type:
i
Refereed
Author(s):Davidson, I. A.; Robson, M. J.
Author Affiliation:AFRC Institute of Grassland and Environmental Research, Hurley, UK
Title:Short-term effects of nitrogen on the growth and nitrogen nutrition of small swards of white clover and perennial ryegrass in spring
Source:Grass and Forage Science. Vol. 45, No. 4, December 1990, p. 413-421.
Publishing Information:Oxford, Blackwell Scientific Publications
Keywords:TIC Keywords: Trifolium repens; Lolium perenne; Nitrogen; Growth; Leaf area index
Abstract/Contents:"Small swards of white clover and perennial ryegrass were established in Perlite in a heated glasshouse, as either monocultures or mixtures of equal plant numbers. On 26th March, 1984 the swards were moved outside and their growth studied over the period to 29th May. All swards received a basal level of nitrate N to simulate soil mineralization and two-thirds received additionally the equivalent of 80 kg N/ha. Over the experimental period (26th March-29th May) clover maintained its proportion of total mixture dry weight in swards given 'fertilizer'-N and increased it proportion in those given only 'basal' N. However, clover declined as a percentage of total mixture dry weight during the first period of the experiment when total leaf area index (LAI) and ambient temperatures were low, and increased its percentage later when temperature and LAI had risen. Changes in tiller and stolon growing point numbers were not good indicators of changes in dry weight. Relative yields and relative replacement rates also were not good indicators of relative performance in mixture. Where 'fertilizer'-N was applied, clover derived less of its nitrogen from that source than grass although their uptakes per unit shoot dry weight were similar."
Language:English
References:19
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Davidson, I. A., and M. J. Robson. 1990. Short-term effects of nitrogen on the growth and nitrogen nutrition of small swards of white clover and perennial ryegrass in spring. Grass Forage Sci. 45(4):p. 413-421.
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Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1990.tb01966.x/epdf
    Last checked: 10/02/2015
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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