خيارات البحث
النتائج 1 - 10 من 11
[To much nitrogen, aci and ozone: pollutant immissions are over the critical threshold]. | Trop d'azote, d'acide et d'ozone: les immissions polluantes depassent le seuil critique.
1997
Voltz, R. | Baumgartner, H.
Effects of rooting medium and fertilizer rate on response of white clover to tropospheric ozone
1996
Heagle, A.S. | Miller, J.E. (Plant Pathology Department, USDA-ARS, North Carolina State University, Raleigh, NC 27695 (USA))
Turnover of carbon and nitrogen in coniferous forest soils of different N-status and under different 15NH4-N application rate
1998
Sjoberg, R.M. | Persson, T. (Department of Ecology and Environmental Research, Swedish University of Agricultural Sciences, P.O. Box 7072, S-750 07 Uppsala (Sweden))
Fly ash application on two acid soils and its effect on soil salinity, pH, B, P and on ryegrass growth and composition
1999
Matsi, T. | Keramidas, V.Z. (Soil Science Laboratory, Aristotle University, Thessaloniki, 54006 (Greece))
The manure model: manure, minerals (N, P and K), ammonia emission, heavy metals and the use of fertiliser in Dutch agriculture
1998
Oudendag, D.A. | Luesink, H.H. (Agricultural Economics Research Institute [LEI-DLO], The Hague (Netherlands))
Seasonal variability and mitigation options for N2O emissions from differently managed grasslands
1998
Kammann, C. | Grunhage, L. | Muller, C. | Jacobi, S. | Jager, H.J. (Institute for Plant Ecology, University of Giessen, Heinrich-Buff-Ring 38, D-35392 Giessen, Germany)
Possibilities of using ground basic rock flours in forestry
1998
Vavricek, D. (Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic))
Surface liming even in higher doses did not affected soil Ph and improving the content of Mg and Ca was only temporary. Spot fertilization by fine-ground amphibolite is significant particularly from the aspect of long-term affects. Short-term affects manifested themselves slightly but in the whole system of particular parameters. Application of higher amounts (3 kg.ha-1) of amphibolite has its substantiation in the future.
اظهر المزيد [+] اقل [-]Effects of various doses of surface liming on particular components of Norway spruce ecosystems in the air polluted regions in the Beskids [Czech Republic]
1995
Vavricek, D. | Betusova, M. (Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Ustav Ekologie Lesa)
The influence of nitrogen fertilization on assimilatory apparatus and growth increment of spruce growing in different densities
1999
Pokorny, R. | Salanska, P. (Akademie Ved, Brno (Czech Republic). Ustav Ekologie Krajiny)
Runoff pesticides from golf links
2000
Sasaki, K. (Nagano-ken. Research Inst. for Health and Pollution (Japan)) | Terasawa, J. | Yoshida, H.
