“…Unfortunately, they are lost or forgotten. For example, in Africa, lots of efficient isolates belonging to Azospirillum, Rhizobia, Cyanobacteria, Azotobacter (for N 2 fixation), Pseudomonas, Bacillus, Aspergillus, Penicillium (for P solubilization and PGPR), Bacillus (K solubilization), and arbuscular mycorrhiza (for P mobilization) are described in literature (Hamdali et al, 2012;Ndoye et al, 2013;Barka et al, 2016;Berruti et al, 2016;Hassimi et al, 2017;Soumare et al, 2017) but none of them (or only very few) has been formulated and marketed. This observation can be extended to many other countries and even all over the whole world.…”