The interaction effect of FYM, fertilizers and bio-fertilizers on yield attributes of onion

The studied carried out interaction effect of FYM, fertilizers (inorganic fertilizers-NPK) and bio-fertilizers (PSB inoculation and Azospirillum inoculation) on Yield attributes (neck thickness, Equatorial diameter and Polar diameter) of bulbs of 12 onion cultivars. The effect of organic manure M0 (Control), M1 (FYM 10 t ha-1) and M2 (FYM 20 t ha-1) and effect of inorganic fertilizers at F0 (0% RD of NPK), F1 (50% RD of NPK) and F2 (100% RD of NPK) and effect of bio-fertilizers at B0 (No-inoculation), B1 (PSB inoculation) and B2 (Azospirillum inoculation) observed varied in onion bulbs. The result of present study clearly revealed that the neck thickness, equatorial and polar diameter of bulb, bulb yield of onion crop increased significantly with the application of FYM, significantly affected by 100% RDF of inorganic fertilizers and less significantly due to inoculation of Azospirillum and PSB respectively. The experiment was laid out at College Farm, College of Agriculture, S.K. Rajasthan Agricultural University, Bikaner, during “Rabi” season of 2015-16 and 2016-17.