International Journal of Plant & Soil Science

Field experiments were carried out to Study the Integrated Nutrient Management to increase Productivity and Profitability in Dual Purpose Oat (Avena sativa L.) at Genetics and Plant Breeding Research Farm, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya, Uttar Pradesh (UP), during Rabi season 2018-19. The experiment was laid out in Randomized block design (RBD) with three replications and nine treatments viz., T1: Control, T2: RDF (100 kg N : 40 kg P₂O₅ : 40 kg K₂O ha^-1), T3: 75 % RDN + Vermicompost @ 2t ha^-1, T4: T3 + PSB (soil application @ 1.5 kg ha^-1), T5: T4 + Azotobacter (seed treatment @10g kg^-1 seed), T6: T5 + ZnSO₄ @ 20 kg ha^-1 (soil application as basal ), T7: T5+ ZnSO₄ @ 15 kg ha^-1 (soil application as basal), T8: T6 + Foliar spray of ZnSO₄ (0.5%) at just before flowering, T9: T7 + Foliar spray of ZnSO₄ (0.5%) at just before flowering. Results revealed that higher yield attributes viz. panicle length (37.40cm), panicle weight (9.80g), number of grain panicle^-1 (56.33), test weight (48.70g), green forage yield (90.60 q ha^-1), dry matter yield (17.51 q ha^-1), yield parameters viz. grain yield (16.51 q ha^-1), straw yield (72.97 q ha^-1) and profitability viz. gross income (INR 82069.5 ha^-1), net income (INR 51605.5 ha^-1) and B:C ratio (1.69) of oat for T8: 75% RDN + Vermicompost @ 2t ha^-1 + PSB (soil) @ 1.5 kg ha^-1 + Azotobacter (seed treatment) @ 10 g kg^-1 of seed + ZnSO₄ @ 20 kg ha^-1 (basal) + foliar spray of ZnSO₄ (0.5%) at just before flowering  of oat as compared to the control. Whereas, application of organic and inorganic fertilizers in combinations viz., Nitrogen, Phosphorus, Potassium, Vermicompost, Phosphorus Solubilizing Bacteria (PSB), Azotobacter and  Zinc had a significant effect on total biomass production, yield attributes, yield  and profitability  of oat.