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1998

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Resultados 91-100 de 347

Mixed farming systems as a way towards a more efficient use of nitrogen in European Union agriculture

1998

Oomen, G.J.M. | Lantinga, E.A. | Goewie, E.A. | Hoek, K.W. van der (Department of Plant and Crop Sciences, Group of Biological Farming Systems, Wageningen Agricultural University, Haarweg 333, 6709 RZ Wageningen (Netherlands))

nitrogen cycle farms azote cycle de l'azote grazing systems hortalizas production vegetale produccion vegetal union europeenne polyculture elevage systeme de paturage paturage ...
Department for Environment, Food and Rural Affairs - United Kingdom
Critical loads for nitrogen deposition and their exceedance at European scale

1998

Kuylenstierna, J.C.I. | Hicks, W.K. | Cinderby, S. | Cambridge, H. (Stockholm Environment Institute at York, University of York, P.O. Box 373, York YO10 5YW (United Kingdom))

oxyde d'azote azote ammonia acidification distribution spatiale eutrophisation oxidos de nitrogeno eutrofizacion acidificacion distribucion espacial amoniaco nitrogeno ...
Department for Environment, Food and Rural Affairs - United Kingdom
Influence of set-aside on the nitrate content of soil profiles

1998

Clotuche, P. | Godden, B. | Bol, V. van | Peeters, A. | Penninckx, M. (Universite Catholique de Louvain, Laboratoire d'Ecologie des Prairies, Place Croix du Sud, 1348 Louvain-la-Neuve (Belgium))

sowing perfil del suelo fertilizers cropping systems lolium perenne winter lixiviacion polucion de aguas subterraneas betterave sucriere rotacion de cultivos aguas subterraneas systeme de culture ...
Department for Environment, Food and Rural Affairs - United Kingdom
Evaluation of SO2 and NO2 concentration levels in vilnius (Lithuania) using passive diffusion samplers

1998

Perkauskas, D. | Mikelinskiene, A. (Institute of Physics, Savanoriu 231, 2028 Vilnius (Lithuania))

diffusion dioxyde d'azote evaluation nitrogen dioxide temperature sulphur dioxide dioxido de azufre polucion del aire echantillonnage evaluacion difusion estaciones del ano ...
Department for Environment, Food and Rural Affairs - United Kingdom
Effects of low pH and aluminum on root morphology of Japanese red cedar saplings

1998

Hirano, Y. | Hijii, N. (Laboratory of Forest Protection, School of Agricultural Sciences, Nagoya University, Nagoya 464-8601 (Japan))

plant anatomy soil chemistry symptoms aluminium forest trees calcium ...
Department for Environment, Food and Rural Affairs - United Kingdom
Focus on emission factors: a sensitivity analysis of ammonia emission modelling in the Netherlands

1998

Leneman, H. | Oudendag, D.A. | Hoek, K.W. van der | Janssen, P.H.M. (Agricultural Economics Research Institute [LEI-DLO], The Hague (Netherlands))

ganado bovino farmyard manure application methods fumier azote liquid wastes methode d'application desechos liquidos industrie laitiere etable amoniaco manures ...
Department for Environment, Food and Rural Affairs - United Kingdom
Effects of eutrophication in drainage ditches

1998

Janse, J.H. | Puijenbroek, P.J.T.M. van (RIVM, Laboratory of Water and Drinking Water Research, P.O. Box 1, NL-3720 BA Bilthoven (Netherlands))

drainage drainage systems fitoplancton azote phosphorus drenaje biodiversite eutrofizacion drainage channels vegetacion vias de navegacion interior nitrogeno ...
Department for Environment, Food and Rural Affairs - United Kingdom
Effects of nitrogen deposition on tree growth and soil nutrients in boreal scots pine stands

1998

Nissinen, A. | Hari, P. (Department of Forest Ecology, P.O. Box 24, University of Helsinki, 00014 Helsinki (Finland))

immobilization carbono pinus sylvestris azote disponibilidad de nutrientes fertilidad del suelo disponibilite d'element nutritif arboles forestales lixiviacion materia organica degradacion matiere organique ...
Department for Environment, Food and Rural Affairs - United Kingdom
Nitrification in organic and mineral soil layers in coniferous forests in response to acidity

1998

Rudebeck, A. | Persson, T. (Department of Ecology and Environmental Research, Swedish University of Agricultural Sciences, P.O. Box 7072, S-750 07 Uppsala (Sweden))

nitrification coniferous forests nitrate nitrates uree amendement du sol foret resineuse sol de foret bosque de coniferas caracteristicas morfologicas suelo humus horizons nitrificacion ...
Department for Environment, Food and Rural Affairs - United Kingdom
Plant uptake of radionuclides in lysimeter experiments

1998

Gerzabek, M.H. | Strebl, F. | Temmel, B. (Austrian Research Centre Seibersdorf, Division of Life Sciences, A-2444 Seibersdorf (Austria))

wheats lolium perenne maize triticum aestivum caesium cesio maiz isotope radioactif betterave sucriere ble chicoree frisee et scarole polucion ...
Department for Environment, Food and Rural Affairs - United Kingdom