ABSTRACT
The soil quality is one of the most important limiting factors for improving agroecosystem services and sustains plant productivities, which stimulate and increase nutrient use efficiency by cropping system. Microbial biomass is considered as one of the most biological indicators for monitoring agro-environmental changes. It is also defined as an important pool for the management of land and agricultural practices especially for C and N resources. The model focusing on microorganisms and plant stocks of C and N in complex cropping covers systems appears as a strong tool to assess the exchanges of the lithosphere organisms with plant, soil, and atmosphere pools. Research studies on legume-cereal intercropping system have shown the efficient use of environmental resources by stimulating plant growth and yield in low-input soils, compared with fallow-cereal rotation practice. The MOMOS model was also used to simulate soil MB activities during crop cycle of either a maize-common bean or wheat-faba bean intercropping system.
