Full TGIF Record # 4599
Item 1 of 1
DOI:10.1007/BF02140720
Web URL(s):https://link.springer.com/content/pdf/10.1007%2FBF02140720.pdf
    Last checked: 09/19/2017
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    Notes: Item is within a limited-access website
Publication Type:
i
Refereed
Author(s):Middleton, K. R.; Smith, G. S.
Author Affiliation:Plant Nutrition Group, Ruakura Agricultural, Research Centre, Hamilton, New Zealand
Title:A comparison of ammoniacal and nitrate nutrition of perennial ryegrass through a thermodynamic model
Source:Plant and Soil. Vol. 53, No. 4, December 1979, p. 487-504.
# of Pages:18
Publishing Information:Dordrecht, Netherland: Martinus Nijhoff Publishers
Related Web URL:https://link.springer.com/article/10.1007%2FBF02140720
    Last checked: 09/19/2017
    Notes: Abstract only
Keywords:TIC Keywords: Lolium perenne; Nutrition; Nitrogen; Ammonium; Nitrates
Abstract/Contents:"The energetics of the assimilation of nitrogen by perennial ryegrass has been studied through a thermodynamic model. On a basis of equal amounts of carbohydrate consumed during assimilation, the nitrate form was found to need only 8% more energy than the ammoniacal form. Protonic exchange has been invoked to explain ionic transferences through root membranes, including cases where preferential uptake of metabolically active elements produced anion to cation imbalance. The model was also used to draw up a balance sheet for a given amount ofmetabolised carbohydrate; from this sheet it appeared that in comparison with nitrate nutrition ammoniacal nutrition needed more oxygen and produced more water. The implication of these findings is discussed in relation to shortterm fertiliser and liming trials and in relation to long-term conditions in ecosystems at an ecological climax."
Language:English
References:40
Note:Tables
Geographic Terms:New Zealand
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Middleton, K. R., and G. S. Smith. 1979. A comparison of ammoniacal and nitrate nutrition of perennial ryegrass through a thermodynamic model. Plant Soil. 53(4):p. 487-504.
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DOI: 10.1007/BF02140720
Web URL(s):
https://link.springer.com/content/pdf/10.1007%2FBF02140720.pdf
    Last checked: 09/19/2017
    Requires: PDF Reader
    Notes: Item is within a limited-access website
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MSU catalog number: SB 13 .P55
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