Vol. 11, Issue 9 (2022)

During the session 2021–2022, the experiment on “Effect of foliar spray of Bio-inoculants and Ammonium molybdate on growth and yield of Broccoli (Brassica oleracea var. italica)” was conducted at the Centre of Excellence on Protected Cultivation and Precision Farming (COEPCPF), while laboratory work was done at the Department of Agricultural Microbiology, IGKV, Raipur (Chhattisgarh), with the objective to see the effect of foliar spray of Bio-inoculants and Ammonium molybdate on Broccoli (TSX-2004). The experiment was laid out in Complete Randomized Design (CRD) with 7 treatments and 4 replications. Foliar spray of Bio-inoculants (Azotobacter + Azospirillum) at 30, 45 and 60 DAT and foliar application of Ammonium molybdate at three different concentrations (C) @ 0.10%, 0.20% and 0.40% solution was given after 06 days gap of spraying bio-inoculants. The experimental results revealed that significantly maximum plant height (28.5cm), number of leaves/ plant (21.8), total chlorophyll content (13.78 mg g-1 of leaves), dry shoot biomass (16.6 g/plant), dry root biomass (8.6 g/plant) were noted under T4 (IF + Foliar Application of Bio-inoculants and Ammonium molybdate 0.2%) at 60DAT, while minimum plant height (23.8 cm), number of leaves (16.0), total chlorophyll content (8.20 mg/g of leaves), dry shoot biomass (9.6 g/plant), dry root biomass (7.4 g/plant) were under T1 (IF). Treatments T4 (IF + Foliar Application of Bio-inoculants and Ammonium molybdate 0.2%), and T3 (IF + Foliar Application of Bio-inoculants and Ammonium molybdate 0.1%) were recorded significantly highest yield attributes viz. fruit diameter and fruit weight per plant (359.0 g and 349.8 g) which proved the best treatment combination in comparison to other treatments.