Yield and Economics of Black Rice as influenced by Integrated Nutrient Management Practices

Author: Sai Chandrika S., Prathibha Sree S., Jaffar Basha S. and Madhu Vani P.

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Abstract

A field experiment was carried out during kharif, 2022 at Agricultural College Farm, Bapatla to assess the impact of integrated nutrient management (INM) on yield and economics of black rice. The experiment was laid out in randomized block design with eight treatments and four replications. The results revealed that application of 50% RDN through Neem cake + 50% RDN through inorganic sources resulted in highest grain yield (4795 kg ha-1) and straw yield (5699 kg ha-1) of black rice, whereas the grain yield (2990 kg ha-1) and straw yield (4022 kg ha-1) of black rice were noticed under 100% RDN through organic sources. The data suggested that harvest index was not significantly influenced by integrated nutrient management practices. The highest gross returns (`2,60,148 ha-1), net returns (` 1,68,321 ha-1) and B:C ratio (2.27) were recorded in treatment receiving 50% RDN through neem cake + 50% RDN through urea, 50% RDN through FYM + 50% RDN through urea, and 50% RDN through FYM + 50% RDN through urea respectively. The lowest gross return (` 1,57,545 ha-1), net return (` 36,354 ha-1) and the B:C ratio (0.30) were recorded with 100% RDN through organic sources.

Keywords

Black Rice, INM, Gross Returns, Neem Cake, Net Returns, Urea

Conclusion

Based on the findings, it can be concluded that the combined application of 50% RDN through FYM + 50% RDN through urea showed greater impact pertaining to the economics point of view though the treatment receiving 50% RDN through Neem cake + 50% RDN through urea recorded significant results on overall crop yield when compared to the utilization of organic or inorganic sources solely. In contrast, the combined application of 50% RDN through vermicompost cake + 50% RDN through urea or 50% RDN through FYM + 50% RDN through urea as an alternative option has the ability to yield comparable results without adversely impacting the overall yield of black rice. However, this research needs further confirmation by carrying out the trail for few more seasons.

References

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How to cite this article

Sai Chandrika S., Prathibha Sree S., Jaffar Basha S. and Madhu Vani P. (2024). Yield and Economics of Black Rice as influenced by Integrated Nutrient Management Practices. Biological Forum – An International Journal, 16(2): 106-109.