Influence of Nutrient Management Practices and Crop Intensification on Yield, Economic Returns, and Energy Use in Conservation Agriculture-Based Rice–Maize Cropping Systems
Bidusi Tripathy, NC Sarkar, BB Panda
Asian Journal of Soil Science and Plant Nutrition · pp. 204–216 · Published 22 Nov 2025
10.9734/ajsspn/2025/v11i4593Abstract
Aims: This study evaluates the impact of different nutrient management practices on the yield, economics, and energy use efficiency in a conservation agriculture (CA)-based rice–maize cropping system. Study Design: Split plot Design. Place and Duration of Study: Indian Council of Agricultural Research-Central Rice Research Institute, Cuttack 753 006, Odisha; 2-year experiment (2022-23 and 2023-24). Methodology: Main plot was allotted with four production systems: Conventional + Sole Crop (CSC), Conventional + Inter Crop (CIC), Conservation agriculture + Sole Crop (CASC) and Conservation agriculture + Inter Crop (CAIC); sub-plot with three nutrient management strategy: Recommended dose of fertilizer (RDF) (NR), 25 % N (N25) and 50 % N (N50) based substitution of RDF with farm yard manure (FYM) replicated thrice. Results: Results showed that 25% N based substitution of RDF with farm yard manure has significantly higher the grain yield, profitability, and energy productivity while reducing the energy input cost compared to sole chemical or 50% N based substitution. Conclusion: Conservation agriculture combined with optimal nutrient strategies proves effective for sustainable intensification of rice–maize systems.
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