Interactive Effects of Rice Variety and Integrated Nutrient Management on Growth and Yield under Red and Lateritic Soils of Paschim Medinipur, West Bengal, India

Le résumé fourni par la source

Background: Rice productivity in red and lateritic soils can be constrained by limited nutrient availability, making coordinated varietal selection and nutrient management important for improving crop performance. Aims: To evaluate the effects of rice varieties and integrated nutrient management on growth, yield attributes and productivity of rice and to identify the most promising variety × nutrient-management combination under red and lateritic soils of Paschim Medinipur, West Bengal. Study Design: A split-plot design with three replications was used, with three rice varieties in the main plots and five nutrient-management treatments in the sub-plots. Place and Duration of Study: The field experiment was conducted during the kharif season of 2025 at the Agricultural Experimental Farm of Midnapore City College, Paschim Medinipur, West Bengal, India. Methodology: IR-64, MTU-1010 and IR-36 were evaluated with five treatments: T₁, control; T₂, recommended dose of fertiliser (RDF: 80-40-40 kg N-P₂O₅-K₂O ha⁻¹); T₃, RDF + FYM @ 10 t ha⁻¹; T₄, RDF + vermicompost @ 5 t ha⁻¹; and T₅, RDF + FYM @ 5 t ha⁻¹ + vermicompost @ 2.5 t ha⁻¹. Growth, yield attributes and yield were recorded. Data were analysed using split-plot ANOVA, and means were compared using LSD at 5% probability. Results: Variety, nutrient management and their interaction significantly influenced growth and yield. IR-64 recorded the highest grain yield (5.66 t ha⁻¹), followed by IR-36 (5.46 t ha⁻¹) and MTU-1010 (4.66 t ha⁻¹). T₅ produced the highest grain yield (6.60 t ha⁻¹) compared with 2.40 t ha⁻¹ under the control. The highest grain yield was recorded under V₁T₅ (7.05 t ha⁻¹), whereas V₂T₁ recorded the lowest (2.10 t ha⁻¹). Conclusion: The integrated application of mineral fertiliser with FYM and vermicompost improved rice productivity under the experimental conditions. IR-64 with T₅ was the most promising combination and may be considered for similar red and lateritic soil conditions, subject to further multi-location and multi-season evaluation.

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