Effect of Precision Nitrogen Management using Nano Urea and Optical Sensor on the Nitrogen Use Efficiency of Basmati Rice and on the Soil properties under Different Methods of Establishment

Author: Ravi, J.M. Sutaliya, A.K. Dhaka, Kamal, Pardeep Phogat and Danveer Singh

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Abstract

At the Rice Research Station, Kaul (Kaithal) of CCS Haryana Agricultural University, Hisar, a field experiment was carried out in the kharif seasons of 2022 and 2023 to study the precision nitrogen management of basmati rice under two distinct crop establishment methods using nano urea and optical sensors. The RBD factorial design was used to set up the experiment. The major plot treatments were direct seeded (DSR) and transplanted (TPR), and there were 10 distinct precision nitrogen management techniques spread among three replications of sub-plots. In both experiment years, crop establishment techniques had no effect on the soil's physiochemical characteristics or nitrogen use efficiency following crop harvest. The various precision nitrogen management techniques had no effect on the soil's pH, EC, OC, or bulk density. The 33% RDN+2 nano urea spray produced the maximum agronomic efficiency, which was statistically comparable to the 66% RDN + 1 nano urea spray. Additionally, the 33% RDN+2 nano urea spray produced a considerably greater agro physiological efficiency than the rest treatment. The 66% RDN + 1 nano urea spray had the most apparent recovery efficiency (%), which was statistically at par with the 66% RDN + 1 nano urea spray + green seeker

Keywords

Rice, Nitrogen, nano urea, DSR, TPR

Conclusion

The physiochemical characteristics of the soil after harvest of crop were unaffected by the various precision nitrogen management techniques and establishment techniques. Different establishing techniques had no effect on the various nitrogen use efficiencies, and the nitrogen harvest index was noticeably greater under transplanted rice as compared to DSR. When using 33% RDN + 2 nano urea sprays the maximum agronomic and agro physiological efficiency was achieved in the context of nitrogen management techniques. The highest apparent recovery efficiency was achieved with 66% RDN + 2 nano urea sprays, while 33% RDN + 2 nano urea sprays produced highest partial factor productivity

References

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How to cite this article

Ravi, J.M. Sutaliya, A.K. Dhaka, Kamal, Pardeep Phogat and Danveer Singh (2024). Effect of Precision Nitrogen Management using Nano Urea and Optical Sensor on the Nitrogen Use Efficiency of Basmati Rice and on the Soil properties under Different Methods of Establishment . Biological Forum – An International Journal, 16(7): 98-102