Paddy Yield Gap Analysis in Durg District, Chhattisgarh: A Management-Oriented Approach to Bridge Production Gaps

Abstract

This comprehensive study analyzes the paddy yield gap in Durg district, Chhattisgarh, with a strategic emphasis on actionable management strategies rather than merely identifying constraints. Data collected from pre-2011 field trials and district reports reveal that despite favorable climatic and soil conditions, a substantial gap persists between potential and actual paddy yields. The research identifies key factors including variety choice, input management, and irrigation efficiency as primary determinants of yield outcomes. Five major varieties and their agronomic attributes were systematically examined to determine the influential parameters affecting yield outcomes. Soil testing across the district indicated low nitrogen levels but medium phosphorus and potassium availability, significantly impacting growth and productivity patterns. Survey and tabular data highlight significant differences between research station potential (around 57.5 q/ha), demonstration plots, and average farmer yields (ranging 35.8-44.6 q/ha), with yield gap indices reaching up to 30%. Dynamic management solutions, including integrated nutrient supply, strategic varietal selection, and rainwater harvesting, are proposed as viable interventions. The comprehensive data analysis indicates that optimizing these measures can bridge at least 40% of the total yield gap. Comparative analysis with historical figures demonstrates marked improvement in yields where proactive interventions were implemented, affirming the strong relationship between management adoption and yield stabilization. The study concludes that targeted outreach and technical support for farmers in Durg district can significantly reduce the yield gap, contributing substantially to regional food security and enhancing farm incomes