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Plant Science Today (PST)

Research Articles

Vol. 12 No. sp1 (2025): Recent Advances in Agriculture by Young Minds - II

Comparative assessment of establishment methods and residue management on yield and profitability in rice–rice cropping system

DOI
https://doi.org/10.14719/pst.9983
Submitted
11 June 2025
Published
07-10-2025

Abstract

Rice straw management is a challenging issue in rice-rice production systems, especially in areas with a shorter sowing/planting window. It was imperative to ascertain the productive and profitable rice establishment method and residue management practice for rice double cropping. In this study, four rice establishment methods-wet direct seeded rice (DSR), modified system of rice intensification (MSRI), mechanical transplanting and manual line planting-were set up in the main plots and five rice residue management treatments were tested in the subplots.
Swarna and Improved Lalat varieties of rice were adopted in the Kharif and Rabi seasons, respectively. Fertilizer recommendations, depending on the soil test-based fertiliser recommendation (STBFR) results, which indicated medium soil N and low soil P and K levels for each crop. MSRI had the highest grain yield in Kharif 2022-23 (5.678 t ha-1); in Rabi 2022-24 (4.377 t ha-1). Farmyard manure outperformed (5.678 t ha-1) other treatments like straw incorporation, biochar application and open burning in grain yield in Kharif and in Rabi. MSRI with FYM resulted in the highest mean cost of cultivation in the rice-rice cropping system. The maximum net return was recorded in wet DSR with FYM addition, but the highest BCR of 1.647 was recorded in wet DSR with straw incorporation. The maximum system profitability of ₹370 ha-1 day-1 was recorded in wet DSR along with FYM.

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