Based on the foregoing it can be concluded that the management of space on the premises of sustainability (in this case the development of sustainable agriculture) first possible where all the following (environmental, economic and social) conditions. Research opportunities for development of sustainable agriculture must be based on geo system approach that includes consideration of reversible relations of agricultural activity and geographical area (regions) in which it operates. Agronomy was first defined as the science of crop production. It was mainly focussed on the study of relationships between climate, soil, cultural practices, and crop yield and quality. Agronomy integrates therefore sciences such as biology, chemistry, soil science, ecology, and genetics. Agronomists then enlarged their studies to the individuals performing the cultural practices, namely farmers. This approach raised new issues on the modelling of farmer’s practices, and on the consequences of farmer’s choices on crop production.