Effect of single and dual bio-inoculants on chemical properties and nutrient availability in soil after harvest of sunflower

Abstract

Biofertilizers are the alternate sources to meet the nutrient requirement of crops). Biofertilizer like Azotobacter fix atmospheric nitrogen. PSB plays a vital role for making unavailable phosphorus to available phosphorus by mineralization of organic phosphate or by solubilization of inorganic phosphate by production of acids. The nutrient availability after harvest of sunflower noted significantly better in bioinoculant treated plots as compared to uninoculated control and only RDF. Through, liquid inoculants showed better performance but carrier based bioinoculants were also found equally at par with the respective N-fixer and P-solubilizer treatments).