Author(s): VM Chaudhari, NK Patel, DC Barot and Nisha Nadoda

Abstract: Cauliflower is economically important vegetable crops for farmer during Rabi season. Nutrient management with biofertilizers help to increase yield of Cauliflower which ultimately help to increase farmers’ incomes. An experiment was laid out in Randomized Block Design (RBD) at Vegetable Research Farm, RHRS, ACHF, NAU, Navsari, Gujarat during Rabi season, 2019-2020 to study the different bio-fertilizers Azospirillum, PSB and KMB with different fertility levels of NPK on growth and yield of cauliflower. The experiment consist of 10 treatments viz., T₁: 75% RDN + Azospirillum (5 l ha^-1), T₂: 100% RDN + Azospirillum (5 l ha^-1), T₃: 75% RDP + PSB (5 l ha^-1), T₄: 100% RDP + PSB (5 l ha^-1), T₅: 75% RDK + KMB (5 l ha^-1), T6: 100% RDK + KMB (5 l ha^-1), T₇: 75% RDF + Azospirillum (5 l ha^-1) + PSB (5 l ha^-1) + KMB (5 l ha^-1), T8: 100% RDF + Azospirillum (5 l ha^-1) + PSB (5 l ha^-1) + KMB (5 l ha^-1), T₉: 100% RDF (200:75:37.5) NPK kg ha^-1 and T₁₀: Azospirillum (5 l ha^-1) + PSB (5 l ha^-1) + KMB (5 l ha^-1). Among different treatments, application of 100% RDF + Azospirillum (5 l ha-1) + PSB (5 l ha^-1) + KMB (5 l ha^-1) recorded maximum net returns (₹ 319877.17 ha-1) and BCR (1.98).

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