National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
This study evaluated the effects of STCR-based fertilizer prescriptions and farmyard manure (FYM) on yield, nutrient uptake, and overall nutrient use efficiency in mustard cultivated on Vertisols of Chhattisgarh. A factorial randomized block design with three replications comprising 16 treatments tracked the influence of targeted nutrient regimes (N, P, K) with or without FYM, including yield-target scenarios (14, 18, and 22 q/ha). Grain and straw yields responded positively to STCR-based fertilizer doses, with the highest realized yield of 21.79 q/ha under T8 (yield target 22 q/ha). Across yield targets, FYM generally enhanced nutrient use efficiency, though its effect on total nitrogen, phosphorus, and potassium uptake varied with the fertilizer regime. Nitrogen uptake was highest under the same STCR-based dose, while phosphorus and potassium uptakes followed similar trend lines, with T8 often yielding the peak total uptake. Interaction effects between FYM and fertilizer were largely non-significant, suggesting additive rather than synergistic interactions under the tested conditions. Omitting N markedly reduced yields and uptake, underscoring nitrogen’s pivotal role in mustard productivity. The findings corroborate prior work on STCR-based nutrient prescriptions and highlight the viability of integrating inorganic fertilizers with organic amendments to stabilize yields, optimize nutrient uptake, and improve resource use efficiency in Vertisol-based systems. Implications for extension and policy emphasize adopting soil-test-guided nutrient management to meet targeted yield goals while mitigating input costs.
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