Full TGIF Record # 31690
Item 1 of 1
Publication Type:
i
Refereed
Author(s):Olff, Han; Pegtel, Dick M.
Author Affiliation:Laboratory for Plant Ecology, Department of Plant Ecology, University of Groningen, Haren, The Netherlands
Title:Characterisation of the type and extent of nutrient limitation in grassland vegetation using a bioassay with intact sods
Source:Plant and Soil. Vol. 163, No. 2, 1994, p. 217-224.
# of Pages:8
Publishing Information:Dordrecht, Netherland: Martinus Nijhoff Publishers
Related Web URL:http://link.springer.com/article/10.1007/BF00007971
    Last checked: 10/14/2015
    Notes: Abstract only
Keywords:TIC Keywords: Nutrient availability; Chemical composition; Test reports; Bioassay; Nitrogen; Phosphorus; Potassium; Fertilizers; Plant ecology
Abstract/Contents:"An important methodological problem in plant ecology concerns the way in which the type and extent of nutrient limitation in terrestrial communities should be assessed. Conclusions on nutrient limitation have been found mainly on soil extractions, fertiliser [fertilizer] trials and tissue nutrient concentrations. In order to avoid some of the problems associated with these methods, we employed a special technique using intact sods which rooted both in the intact soil and in a nutrient solution, from which N, P and K were omitted stepwise . The method was applied to hay-field communities which differed in their history of fertiliser [fertilizer] application. Four fields were compared which were not fertilised [fertilized] for 2, 6, 19 or 45 years, while hay making continued. This was done to restore former species-rich grassland communities. We tested the hypothesis that the increase in species diversity in these grasslands was attended by an increase in the number of limiting nutrients. We observed clear shifts in the type and extent of nutrient limitation. Fields which were recently fertilised [fertilized] were characterised [characterized] by nitrogen and potassium limitation, while phosphorus limitation increased in importance towards the later stages of succession. In the last field (45 years unfertilised [unfertilized]) N, P and K equally limited production at the community level. These conclusions differed from those drawn from a fertiliser [fertilizer] trial in these same four fields, which failed to detect phosphorus limitation. It is concluded that the use of this method provides a valuable extra source of information while studying relationships between nutrient limitation and species diversity in grassland communities."
Language:English
References:Unknown
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Olff, H., and D. M. Pegtel. 1994. Characterisation of the type and extent of nutrient limitation in grassland vegetation using a bioassay with intact sods. Plant Soil. 163(2):p. 217-224.
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