Livres et chapitres d'ouvrages (10) Articles (4) Textes imprimés (1)
Ouest (1) Instruction and study (1) Preservation (1) Conservation (1) Employment (1) Observations (1) Surveys (1) Observations (1) Agricultural intensification (1) Water (1) Strategy (1) Service life (Engineering) (1) Seeds (1) Runoff (1) Production (Economic theory) (1) Pressure (1) Necessity (Philosophy) (1) Natural resources (1) Grain (1) Food relief (1) Farm produce (1) Curves (1) Circle (1) Agricultural systems (1) Adoption (1) Management (1) Research (1) Yields (1) Texture (1) Soils (1)
Afrique (8) Afrique (8) Management (7) Gestion (7) Soils (6) Suelos (6) Sols (6) Agriculture (5) Peasants (5) Technological innovations (5) Agricultura (5) Agriculture (5) Compétence (5) Innovations (5) Agriculture (5) Paysannerie (5) agriculture (5) Preservation (4) Conservation (4) Adaptation (4) Possibility (4) Licenses (4) Agricultural systems (4) Adoption (4) Technique (4) Autorizaciones (4) Posibilidad (4) Adopción (4) Protection du patrimoine (4) Pédologie (4)