Fuente: WIPO "tomato" The present invention is directed to agricultural mixtures comprising one or more diazotrophs and one or more arbuscular mycorrhizal fungi. The present invention is further directed to compositions comprising one or more diazotrophs, one or more arbuscular mycorrhizal fungi and one or more agriculturally acceptable carriers. The present invention is further directed to methods of improving plant growth, yield and/or quality comprising applying an effective amount of a mixture or composition of the present invention to a plant, plant propagation material or an area where a plant will grow.