Author(s):

KR Patel and MM Patel

Abstract: A field experiment was conducted during rabi season of 2016-17 at the College Farm, N. M. College of Agriculture, Navsari Agricultural University, Navsari to study the “Effect of integrated nutrient management on growth, yield, quality and economics of fodder sugar beet (Beta vulgaris) varieties. Total ten treatment combinations comprising of two varieties viz., V₁: JK kuber and V₂: JK magnolia and five levels of integrated nutrient management i.e. F₁ : 100% RDF (RDF: 120 : 60 : 60 NPK kg/ ha), F₂ : 75% RDF+ 25% N through BC, F₃ : 75% RDF + 25% N through BC + bio-fertilizer (Azotobacter + PSB + Potash solubilizing bacteria, 10⁸ CFU/ml, 1.25 lit/ha each), F₄ : 50% RDF + 50% N through BC and F₅: 50% RDF + 50% N through BC + bio-fertilizer (Azotobacter + PSB + Potash solubilizing bacteria, 10⁸ CFU/ml, 1.25 lit/ha each) were evaluated in factorial randomized block design with four replications. Significantly improved plant height, number of leaves per plant, dry matter accumulation per plant, root length and fresh foliage yield as well as N, P and K uptake by foliage was observed in JK magnolia (V₂), while root weight, fresh root yield and total fresh biomass yield as well as N, P and K uptake by root were significantly higher in JK kuber (V­₁). All the growth and yield parameters, fresh root yield, fresh foliage yield and total fresh biomass yield as well as N, P and K uptake by root and foliage were significantly influenced due to integrated nutrient management. All these parameters beared higher values with application of 50% RDF + 50% N through BC + bio-fertilizer (F₅) followed by 75% RDF + 25% N through BC + bio-fertilizer (F₃). Maximum net realization (₹ 108353 ha^-1) and BCR (3.14) were registered under JK kuber (V₁) followed by JK magnolia (V₂) with net realization of ₹ 98119 ha^-1 and BCR of 2.94. Whereas looking to the integrated nutrient management, application of 50% RDF + 50% N through BC + bio-fertilizer (F₅) accrued the maximum net realization of ₹ 114897 ha^-1 and BCR of 3.25 followed by application of 75% RDF + 25% N through BC + bio-fertilizer (F₃) with net realization of ₹ 110147 ha^-1 and BCR of 3.17d.

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