[ Published in: Pollution ]
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Reducing the impact of crop nutrients on the environment
1993
Steen, I. | Williams, T. (European Fertilizer Manufacturers Association, Brussels (Belgium))
Department for Environment, Food and Rural Affairs - United Kingdom
Plant nutrient management and the environment
1993
Joly, C.
Food and Agriculture Organization of the United Nations - Italy
[Discharge waters in the watersheds of the States of Mexico and Hidalgo]
1993
Ortega, E.M. | Diaz, E.L.F. (Centro de Hidrociencias, Montecillo (Mexico))
Food and Agriculture Organization of the United Nations - Italy