خيارات البحث
النتائج 131 - 140 من 240
Current Danish policies to abate nutrient emissions from agriculture
1994
Bonde, T.A. (Royal Veterinary and Agricultural University, Department of Ecology and Molecular Biology, Microbiology Section, DK-1958 Frederiksberg C., Copenhagen (Denmark))
The role of nitrogen in crop production and losses of nitrate by leaching from agricultural soil
1994
Johnston, A.E. (IACR, Rothamsted, Harpenden (AL5 2JQ,UK))
Environmental challenges in Polish agriculture covering a main area of the Baltic Sea Basin
1994
Fotyma, M. | Terelak, H. (Institute of Soil Science and Plant Cultivation, Osada Palacowa, 24100 Pulawy (Poland))
Variations in the loadings and riverine transport of nitrate and nitrite in Latvia
1994
Laznik, M. | Matisone, G. (Hydrometeorological Agency (LHMA), 165 Maskavas Str., LV-1019, Riga (Latvia))
Germany: the Baltic Sea and its agricultural environmental status
1994
Werner, W. | Wodsak, H.P. (Agrikulturchemisches Institut, Rheinischen Friedrich-Wilhelms Universitat Bonn, Mechenheinmer Allee 176, D-5300 Bonn (Germany))
Petroleum pollution and mutation in mangroves
1994
Klekowski, E.J. Jr. | Corredor, J.E. | Morell, J.M. | Castillo, C.A. del (Biology Department, University of Massachusetts, Amherst, MA 01003 (USA))
Pollution of soils and watercourses by wastes from livestock production systems
1994
Webb, J. | Archer, J.R. (ADAS, Nobel House, 17 Smith Square, London SW1P 3JR (United Kingdom))
Water pollution | Poor quality assurance and limited pollutant coverage undermine EPA's control of toxic substances
1994
The use of animal waste as a crop fertilizer
1994
Ap Dewi, I. (School of Agricultural and Forest Sciences, University College of Wales, Bangor, Gwynedd LL57 2UW (United Kingdom))
The pollution potential and flows of nitrogen to waters and the atmosphere from grassland under grazing
1994
Jarvis, S.C. (AFRC Institute of Grassland and Environmental Research, North Wyke, Okehampton, Devon EX20 2SB (United Kingdom))
