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Результаты 221-230 из 266
[The influence of agriculture on water quality in Colombia]
1993
Gomez Sanchez, C.E. (Instituto Nacional de los Recursos Naturales Renovables, Santa Fe de Bogota (Colombia))
[The use of bioindicators to determine water quality]
1993
Guerrero Padilla, A.M. (Universidad Nacional de Trujillo (Peru))
[Water pollution in Costa Rica by residues from coffee processing and hog production]
1993
Coto Campos, J.M. (Universidad Nacional, Heredia (Costa Rica))
[GEMS [Global Environment Monitoring System]/WATER. Global programme of water quality monitoring and assessment]
1993
Ongley, E.D. (Canada Center for Inland Waters, Burlington, Ontario (Canada)) | Fraser, A.S. | Helmer, R. | Vandeweerd, V.
[The influence of agriculture on water quality]
1993
Andreoli, C.V. (Universidad Federal do Parana, Curitiba (Brazil). Dept. de Suelos)
[Reducing salinization of soil and water by improving irrigation and drainage management]
1993
Rhoades, J.D. (United States Dept. of Agriculture, Riverside, CA (USA). Salinity Lab.)
[Requirements by the World Bank to protect water quality in development projects]
1993
Matthews, G.J. (IBRD, Washington, DC (USA))
[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))
[Hazard assessment of agricultural chemicals by simple simulation models]
1993
Calamari, D. (Milan Univ. (Italy)) | Barg, U.
[An overview of pollution of water by agriculture]
1993
Sagardoy, J.A.