Full TGIF Record # 69957
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Web URL(s):http://www.tandfonline.com/doi/pdf/10.1080/00103620009370633
    Last checked: 10/13/2015
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Publication Type:
i
Report
Author(s):Bailey, John S.
Author Affiliation:Department of Agriculture for Northern Ireland, Agricultural and Environmental Science Division, Belfast, United Kingdom
Title:Influence of sward botanical composition on performance of cool temperate grassland under contrasting nitrogen fertilization regimes
Source:Communications in Soil Science and Plant Analysis. Vol. 31, No. 17/18, 2000, p. 2855-2864.
# of Pages:10
Publishing Information:New York, NY: Marcel Dekker
Keywords:TIC Keywords: Fertilization rates; Botanical composition; Temperate zones; Grasslands; Nitrogen fertilization; Lime; Phosphorus; Application rates; Dry weight; Lolium perenne; Agrostis stolonifera; Poa trivialis; Root-shoot ratio; Comparisons; Drainage; Sandy soils; Silty soils; Clay soils; Carbon; Nitrogen; Carbon to nitrogen ratio
Abstract/Contents:"Eight field experiments, which tested the effects of lime, phosphorus (P), and two rates of nitrogen (N) on a range of permanent grassland swards in Northern Ireland (NI), were re-examined to investigate the influence of sward botanical composition on aerial dry matter (DM) productivity under 'low'and 'high' levels of N input. The aim of the investigation was to verify results previously obtained using 'pure' single-species swards, which suggested that secondary grasses are more productive than perennial ryegrass at low levels of N input (i.e., <100 kg ha⁻¹ a ^D-^D[1). The swards used in the investigation varied considerably in botanical composition, but were largely dominated by three main species: perennial ryegrass (Lolium perenne L.), creeping bent (Agrostis stolonifera L.), and rough stalked meadow grass (Poa trivialis L.), all of which were characteristic of fertile habitats. The results confirmed that under reduced N input management, swards dominated by these secondary grasses are capable of out-performing those in which perennial ryegrass is a major component. The superior (aerial) productivity of the secondary grasses was attributed to their ability to conserve resources and maintain high shoot-to-root ratios under 'moderate' N stress conditions."
Language:English
References:26
Note:Tables
Graphs
Geographic Terms:Northern Ireland
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Bailey, J. S. 2000. Influence of sward botanical composition on performance of cool temperate grassland under contrasting nitrogen fertilization regimes. Commun. Soil. Sci. Plant Anal. 31(17/18):p. 2855-2864.
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http://www.tandfonline.com/doi/pdf/10.1080/00103620009370633
    Last checked: 10/13/2015
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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