[ 发表于: Pollution ]
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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))
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))
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))
Department for Environment, Food and Rural Affairs - United Kingdom