Polymeric materials with high capacity for water absorption, biodegradable and low cost, are versatile materials with great potential in the agricultural sector.This material can be used for the development of new technologies aimed at increasing productivity and reducing costs of crops.Thus, the objective of this work was to develop two artificial microbial growth systems based on biodegradable hydrogels that allow their use as inoculants of plant growth promoting microorganisms (PGPM).For this, dextrose, starch, agar, citric acid and sorbitol were used as polymer precursors.The obtained polymers were structurally and functionally characterized by: infrared spectroscopy, elemental analysis, thermogravimetric analysis, nuclear magnetic resonance, water absorption capacity and swelling volume.On the other hand, the construction of the bacterial inoculum was carried Bacterial inocule Hydrogel AzotobacterInoculos bacterianos hidrogeles Azotobacter