Full TGIF Record # 3454
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DOI:10.1007/BF02374140
Web URL(s):https://link.springer.com/content/pdf/10.1007%2FBF02374140.pdf
    Last checked: 09/19/2017
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    Access conditions: Item is within a limited-access website
Publication Type:
i
Refereed
Author(s):Skeffington, R. A.; Bradshaw, A. D.
Author Affiliation:Department of Botany, University of Liverpool, Liverpool
Title:Sward quality and the development of a nitrogen cycle
Article Series:Nitrogen accumulation in Kaolin wastes in Cornwall, part 4
Source:Plant and Soil. Vol. 62, No. 3, October 1981, p. 439-451.
# of Pages:13
Publishing Information:Dordrecht, Netherland: Martinus Nijhoff Publishers
Related Web URL:https://link.springer.com/article/10.1007%2FBF02374140
    Last checked: 09/19/2017
    Notes: Abstract only
Keywords:TIC Keywords: Nitrogen; Kaolin
Abstract/Contents:"Nitrogen accumulation and nitrogen mineralisation rates were measured in a series of waste heaps, produced by the china clay mining industry, which had been reclaimed at different times with a sward of Agrostis tenuis, Festuca rubra , and Trifolium repens. The best swards tended to have high ammonification rates and rapid N turnover (which is represented by a nitrogen turnover index) nitrification rates or nitrogen accumulation were not such good predictors of sward quality. Ammonification increased with pH and with organic nitrogen accumulation whereas N turnover was not related to these factors. Nitrification levels were generally low and it was concluded that nitrification was not important to sward health. Organic nitrogen increased with age in all swards, ammonification in certain types only and nitrification not at all. Levels of all are well short of those in adjacent grazing land. Rates of turnover had however a tendency to decline towards those in the grazings owing probably to the build up of resistant humus. The proportion of the total nitrogen which is in the biomass (30%) is also higher than in adjacent grazings (6%). Rapid nitrogen cycling is thus needed to maintain productivity and greenness, and the disadvantages of this are discussed. The adequacy of nitrogen cycle development to date is considered, and possible future strategies outlined."
Language:English
References:20
Note:Summary appears as abstract
Tables
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Geographic Terms:UK
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Skeffington, R. A., and A. D. Bradshaw. 1981. Sward quality and the development of a nitrogen cycle. Plant Soil. 62(3):p. 439-451.
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DOI: 10.1007/BF02374140
Web URL(s):
https://link.springer.com/content/pdf/10.1007%2FBF02374140.pdf
    Last checked: 09/19/2017
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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MSU catalog number: SB 13 .P55
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