Significance of Nano N Fertilizer on uptake, efficiency and Yield of Rice Crop

Author: Jagriti Patel, K. Tedia, Jyoti Bala, L.K. Srivastava, V.N. Mishra, R.K. Banwasi and Gourav Jatav

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Abstract

A field experiment was carried out during the kharif season of 2020 and 2021 at Research Farm of IGKV, Raipur, Chhattisgarh, India to study the impact of different combination of nano N on yield and uptake of rice and efficacy of the fertilizer in the crop. The experiment was laid out in a randomized block design (RBD) with twelve treatments, each replicated thrice. The different treatment combinations were T1 – 0% N (control), T2 - 50% RDN, T3 – 75% RDN, T4 – 100% NPK (RDF - 120:60:40 kg ha-1), T5 – 0% N + 2 sprays of nano N @ 4 ml l-1, T6 – 0% N + 2 sprays of nano N @ 8 ml l-1, T7 – 50% N + 2 sprays of nano N @ 4 ml l-1, T8 – 50% N + 2 sprays of nano N @ 8 ml l-1, T9 – 75% N + 2 sprays of nano N @ 4 ml l-1, T10 – 75% N + 2 sprays of nano N @ 8 ml l-1, T11 – 50% N + 2 sprays of 2% urea and T12 – 50% N + 3 sprays of 2% urea. The results indicated that the treatments i.e. 100% RDF (T4), 75% N + 2 sprays of nano N @ 8 and 4 ml l-1 (T10 and T9), 50% N + 2 sprays of nano N @ 8 and 4 ml l-1 (T8 and T7) and 50% N + 3 sprays of 2% urea (T12) obtained significantly higher grain yield over the others while straw yield was found highest in 100% RDF (T4) followed by 75% N + 2 sprays of nano N @ 8 and 4 ml l-1 (T10 and T9) treatments in both the seasons. The highest total N uptake was found under T4 - 100% RDF (98.12 kg ha-1), T9 -75% N + 2 sprays of nano N @ 4 ml l-1 (94.25 kg ha-1) and T10 - 75% N + 2 sprays of nano N @ 8 ml l-1 (94.09 kg ha-1). Lastly, The Nitrogen Use Efficiency (NUE) was maximized 47.49% in 50%N + 2 sprays of nano N@4ml l-1 (T7) followed by 46.82 to 43.81% in different N levels combined with nano N and urea sprays.

Keywords

Nano N, Nitrogen use efficiency, N-uptake, Foliar application, Rice

Conclusion

Nanotechnology application in agriculture is still in its early stages of development. A horrifying deficit of nutrients in agricultural soil has resulted in a sharp decrease in viability of yield and a severe economic crisis. From the results, we can conclude that the foliar application of nano N (@ 4 and 8 ml l-1) in combination with either 50 and 75 % N (T7, T8, T9 and T10) and foliar application of 2% urea in 2 and 3 sprays with 50% N (T11 and T12) were comparable to the application of 100% RDF (T4) thereby, indicating the importance of foliar application. Thus, the use of nano-N can reduce the recommended dosage of nitrogenous fertilizer by up to 50%. The N uptake was found optimum with the application of 75% N with 2 sprays of nano N @ 4 and 8 ml l-1 (T9 and T10) along with 100% RDF (T4). Overall higher NUE was obtained by the application of a mix of conventional and nano N than as obtained by 100% RDF. Therefore, it can be concluded that nano N helps in obtaining higher nitrogen use efficiency over the 100% RDF application using conventional NPK fertilizer. Finally, it can be concluded that nano N can be used with conventional nitrogenous fertilizer for higher yield, uptake and efficiency of nitrogen. But in order to validate the results of the current investigation, deeper research in this background is required to be done.

References

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How to cite this article

Jagriti Patel, K. Tedia, Jyoti Bala, L.K. Srivastava, V.N. Mishra, R.K. Banwasi and Gourav Jatav (2023). Significance of Nano N Fertilizer on uptake, efficiency and Yield of Rice Crop. Biological Forum – An International Journal, 15(5): 912-916.