细化搜索
结果 241-250 的 282
[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.
[Pollution of groundwater resources in rural areas and its impact on agriculture and health: Huaura case study, Peru]
1993
Ventura Napa, M. (Ministerio de Agricultura, Lima (Peru))
[Improving nitrogen management in irrigated, intensely cultivated areas: the approach in France]
1993
Ignazi, J.C. (Comite d'Orientation pour la Reduction de la Pollution par les Nitrates, Paris (France))
[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.)
[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))
[Health impacts related to irrigated agriculture in Latin America]
1993
Reiff, F. (Pan American Health Organization, Washington, DC (USA))
[Hazard assessment of agricultural chemicals by simple simulation models]
1993
Calamari, D. (Milan Univ. (Italy)) | Barg, U.
[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))
[Pollution of inland waters of Chile by nitrates and pesticide residues]
1993
Gonzalez Martineaux, S. (Instituto de Investigaciones Agropecuarias, Santiago (Chile))