Résumé:
The cultivation of the olive tree constitutes the pivot of social, economic and cultural life in many regions of the world, particularly in the countries of the Mediterranean basin. However, its development is linked to several agricultural techniques, the most important of which are irrigation and fertilization techniques.
In addition to chemical fertilization which has been the most used for a long time, farmers today are becoming aware of the importance of biological fertilization
(bio- fertilization) and its positive impact on the health and production of olive trees from a point of view quantity and quality.
The objective of this work is to study the effect of using a biofertilizer: “BACOSOL” on vegetative growth in the Chemlal variety of the Oléa europea olive tree in comparison with the use of a chemical fertilizer ( mineral): UREE 46 and a control not treated with any fertilizer.
The results obtained revealed that the biofertilizer, in this case “BACOSOL” used at a dose of 10 Kg/Tree, gave the best results in terms of length of young branches with an average of 18.76 cm on all the branches taken as samples. However, Urea 46 also gave good results (average branch length = 13.49 cm) in comparison with the other doses of “BACOSOL” used. As for the controls not treated with any fertilizer, the results obtained are the least conclusive.
