Analysing the Nutrient Uptake and Economic Viability of Integrated Nutrient Management for French Bean (Phaseolus vulgaris L.) in Uttar Pradesh Gangetic Plain

Abstract

A field experiment was carried out at the Krishi Vigyan Kindra-1 research plot in Kotwa, Azamgarh, Uttar Pradesh, India, to examine the nutrient absorption and economic feasibility of integrated nutrient management of French beans (Phaseolus vulgaris L.) during the Rabi season of 2022–2023 and 2023–2024.Treatments werea combination of five different levels of fertilizers and vermicompost viz. T₁(100% NPKS + 0% VC), T₂(75% NPKS + 25% VC), T₃(50% NPKS + 50% VC), T₄(25% NPKS + 75% VC) T₅ (0% NPKS + 100% VC) tofulfil the requirement of the recommended dose of fertilizers. This treatment was applied tofour genotypes of French bean i.e. Kashi Rajhans, Kashi Sampann, HUR-15, and HUR-137. Treatment (T₂) observed a significant maximum seed yield of 23.04 q ha^-1and straw yield(32.45 q ha^-1), harvest index (41.46%), and genotype Kashi sampan (41.93%).In the interaction treatment (T₂) 75% NPKS through fertilizers + 25% Vermicompost fertility levels with all genotypes achieved the highest B:C ratio and lowest through T₅100% RDF nutrient supply through vermicompost.Maximum cost of cultivation (₹140218.00 ha^-1) recorded by Treatment (T₅) to fulfil the 100% RDF nutrient through vermicompost and lowest gross return (₹ 423728.00 ha^-1).The lower grain yield with 100% RDF through vermicompost application compared to integrated fertilizers and vermicompostis due to the slower nutrient release, improving soil health and may not supply enough nutrients at the right time for optimal growth from vermicompost, whilefertilizers provide nutrients more quickly and in higher concentrations, leading to faster growth and better yields.In genotype Kashi sampan achieved the highest B: C ratio. This show T₂ more economically benefit to farmer then other treatments and genotype Kashi Sampann.According to the obtained output, it might be adopted to Kashi Sampann geno type for achieving potential yield for the Gangetic plains region and could be used alternate option for boosting productivity of French bean production.