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  1. Proceedings.
    By: Alberta Soil Science Workshop. - Soil Science Workshop - Western Canada Nitrogen Symposium - Western Canada Phosphate Symposium
    Publication info: [Edmonton, Alta. :Alberta Agriculture],1962-
    Contributed by: University of Alberta Libraries (archive.org)
    Subjects: Alberta  Congresses  Fixation  Nitrogen  Nitrogen content  Nitrogen fertilizers  Research  Soil acidity  Soil erosion  Soil management  Soil microbiology  Soil science  Soils  Soils, Salts in  
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  2. Efficient use of nitrogen on crop land in the Northeast /
    By: Barker, Allen V.,
    Publication info: New Haven :Connecticut Agricultural Experiment Station,1980.
    Contributed by: University of Connecticut Libraries (archive.org)
    Subjects: Effect of nitrogen on  Nitrogen content  Northeastern States  Plants  Soils  
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  3. The importance of runoff and winter anoxia to P and N dynamics of a beaver pond / report prepared by Kevin J. Devito and Peter J. Dillon.
    By: Devito, Kevin John, - Dillon, P. J. - Ontario.
    Publication info: [Toronto] :Queen's Printer for Ontario,1992.
    Contributed by: Ontario Ministry of the Environment (archive.org)
    Subjects: Environment aspects  Lake ecology  Nitrogen  Nitrogen content  Ontario  Phosphorus  Phosphorus content  Stream ecology  Water  
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  4. Effects of prescribed fire on soil nitrogen levels in a cutover Douglas-fir/western larch forest /
    By: Jurgensen, Martin F. - Harvey, A. E. - Larsen, Michael J. - Forestry Sciences Laboratory (Missoula, Mont.)
    Publication info: [Ogden, Utah] :U.S. Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station,1981.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Forest site quality  Forest soils  Nitrogen content  Prescribed burning  Soils  
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  5. Determinations of nitrogen in the soils of some of the experimental fields at Rothamsted and the bearing of the results on the question of the sources of the nitrogen of our crops / by Sir John Bennet Lawes and Joseph Henry Gilbert.
    By: Lawes, J. B. - Gilbert, J. H. - American Association for the Advancement of Science.
    Publication info: London :Harrison,1883.
    Contributed by: Canadiana.org (archive.org)
    Subjects: Experimentation  Nitrogen  Nitrogen content  Soils  
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  1. Induced responses in the subtropical evergreen, broad-leaf tree Schima superba: Effects of simulated herbivory on leaf quality and subsequent insect attack during leaf expansion
    By: Liu,ZG - Cai,YL - Li,K
    Type: Article
    In: Phyton (Buenos Aires)
    Date: 2010-06-01
    Subjects: herbivory  Induced response  Nitrogen content  Schima superba  Simulated herbivory  
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  2. Response of Dalbergia miscolobium Benth. seedlings, a cerrado tree species, to mineral nutrient supply
    By: Sassaki,Regina M. - Felippe,G.M.
    Type: Article
    In: Sociedade Botânica de São Paulo
    Date: 1998-04-01
    Publication info: Sociedade Botânica de São Paulo
    Subjects: carbohydrate content  Dalbergia miscolobium  early growth  Nitrogen content  nutrient solution  
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