[Permanent field trials as a research basis for sustainable land use - Documents of the conference - Abridged versions of the papers and posters]

agriculture extensive amendement du sol analyse de sol berlin biologie du sol brandenbourg brandenburg brandenburgo climatic factors conservation de la nature conservation des ressources conservation des sols continuous cropping crop yield cultivation cultivo cultivo al aire libre cultivo continuo cultivo secuencial culture continue culture en plein air data analysis data collection ecologia ecologie ecology encuestas enmiendas del suelo evaluation experimentation extensive farming facteur climatique facteur de rendement factores de rendimiento ferme pilote fertilidad del suelo fertilisation fertilizer application fincas experimentales land use manejo del suelo mise en valeur du sol monitoring nature conservation outdoor cropping pilot farms plant production pratique culturale rendement des cultures rendimiento de cultivos resource conservation rotation culturale rotational cropping sequential cropping site factors soil amendments soil biology soil chemicophysical properties soil conservation soil fertility soil management soil testing soil treatment sostenibilidad surveys sustainability traitement du sol tratamiento del suelo universidades universities utilisation des terres valeur d'estimation valuation vigilancia yield factors