|
La Prairie Dans ses Usages Multiples: Conservation des Sols, Protection de L'Environnement, Etc. M Skouri, UNESCO |
||
|
Nitrogen Fixation, Cycling, and Utilization P M. Murphy, Agricultural and Food Development Authority, Ireland |
||
|
C Demarquilly, SRNH, INRA |
||
|
Forage Conservation and Physico-Chemical Conversion E Zimmer, FAL, Germany |
||
|
Vegetation Dynamics in Grazed Systems: A Hierarchical Perspective D D. Briske, Texas A&M University |
||
