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The global nitrogen cycle: changes and consequences

1998

Galloway, J.N. (Department of Environmental Sciences, University of Virginia, Charlottesville, VA 22903 (USA))

nitrogen suelo leguminosas ecosystems vegetation riz nitrogeno denitrificacion region marine ecosysteme fijacion del nitrogeno vegetacion ...
Department for Environment, Food and Rural Affairs - United Kingdom
Analysis of environmental policy measures aimed at reducing nitrogen leaching at the farm level

1998

Hasler, B. (National Environmental Research Institute, Department for Policy Analysis, P.O. Box 358, 4000 Roskilde (Denmark))

politique de l'environnement nitrogen catch crops leaching cultivos intermedios economie nitrogeno betail plante de culture derobee lixiviacion cereale manures ...
Department for Environment, Food and Rural Affairs - United Kingdom
Effects of ozone on yield, growth, and root starch concentrations of two alfalfa (Medicago sativa L.) cultivars

1997

Renaud, J.P. | Allard, G. | Mauffette, Y. (Centre de recherche acericole, MAPAQ, 2700 rue Einstein, Ste-Foy, QC, G1P 3W8 (Canada))

leguminosas ozono growth cultivars legumes ozone pollution atmospherique variete polucion del aire legumineuse almidon ...
Department for Environment, Food and Rural Affairs - United Kingdom