AQUEOUS SOLUTION COMPRISING AN INCLUSION COMPLEX, METHOD FOR OBTAINING SAME AND USE THEREOF FOR APPLICATION IN CROPS TO IMPROVE THEIR YIELD

The invention relates to an aqueous solution of an inclusion complex which comprises: a chitosan with a molecular weight comprised between 100,000 and 300,000 g/mol as a carrier agent and at least one biologically active compound applicable in agriculture selected from the group formed by: Equisetum arvense (Horsetail), Urtica spp (Nettle) extract, an amino acid, and any combination thereof. In addition, the invention relates to the method for obtaining the aqueous solution of the complex through the sonication of a gel previously obtained (also by sonication) from a chitosan gel with a carboxylic acid with the ABC. The invention further relates to the use of the aqueous solution to promote plant growth and to prevent pathogenic diseases in plants, uses which are significantly improved with respect to known compounds due to the synergistic effect found among their components.