Fertilizer Recommendations Developed through STCR with Integrated Nutrient Management Supply for Mustard in Inceptisol

Author: Y.V. Singh, S.K. Singh, P.K. Bharteey, S.R. Borah, Kajal Singh and P. Dey

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Abstract

A study was conducted of five locations in village-Parsiya, Naugarh block of district-Chandauli, Uttar Pradesh during Rabi-2019 to evaluate the model through Soil Test Crop Response (STCR). Among the treatments were control, blanket recommendation, STCR-based fertilizer doses for yield objectives of 16 and 20 q ha-1, and farmer's practice. Fertilizer doses were calculated and applied for soil test based fertilizer recommendation (STBFR) treatments based on the initial soil test values of available N, P, and K and the amounts of N, P, and K provided by farm yard manure for the corresponding production targets (FYM). The treatments were imposed and cultivation practices were carried out periodically, and the grain yield was recorded at harvest. Using the data on grain yield and fertilizer doses applied, per cent achievement and B:C Ratio (Benefit Cost Ratio) were worked out. Post harvest soil samples were collected and analyzed for available N, P and K status. The results of the studies showed that the percent achievement of the targeted yield was within 10% fluctuation in all five sites, showing the validity of the equations for prescribing integrated fertilizer dosages for mustard. The yield objective of 20 q ha-1 (2020) under STBFR had the highest mean percent attainment, followed by STCR 16 q ha-1. STBFR 20 q ha-1 also had the best benefit: cost ratio (7.39). The post-harvest soil available NPK revealed soil fertility building and maintenance as a result of soil test-based fertilizer recommendations. The IPNS mustard fertilizer prescription equations can be advised for alluvial Inceptisol in Uttar Pradesh's Chandauli district to attain a yield objective of 20 q ha-1 with a good economic return.

Keywords

B:C ratio, STCR, Mustard and Yield target

Conclusion

On the basis of the results of the experiments we conducted, we can say that the study will help establish guidelines for the amount of fertilizer used in mustard fields. Therefore, fertilizer recommendations based on the targeted yield approach are not only valuable for achieving desired yield targets but also take care of the efficient and judicious use of fertilizers in increasing mustard production. Follow-up trials on farmer's fields will be conducted to test the validity of these equations while keeping their financial resources in mind. Thereafter, these can be used by soil testing laboratories to make fertilizer recommendations to farming communities in Chandauli district of Uttar Pradesh.

References

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How to cite this article

Y.V. Singh, S.K. Singh, P.K. Bharteey, S.R. Borah, Kajal Singh and P. Dey (2023). Fertilizer Recommendations Developed through STCR with Integrated Nutrient Management Supply for Mustard in Inceptisol. Biological Forum – An International Journal, 15(1): 218-221.