_____________________________________________________________________________________________________ *Corresponding author: E-mail: chandanareddy660@gmail.com; International Journal of Plant & Soil Science 33(24): 276-282, 2021; Article no.IJPSS.78988 ISSN: 2320-7035 Impact of Foliar Application of Nano Nitrogen, Zinc and Copper on Yield and Nutrient Uptake of Rice P. Chandana a* , K. R. Latha a , C. R. Chinnamuthu a , P. Malarvizhi b and A. Lakshmanan c a Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore – 641003, India. b Department of Soil Science and Agricultural Chemistry, Tamil Nadu Agricultural University, Coimbatore – 641003, India. c Department of Nano Science and Technology, Tamil Nadu Agricultural University, Coimbatore – 641003, India. Authors’ contributions This work was carried out in collaboration among all authors. All authors read and approved the final manuscript. Article Information DOI: 10.9734/IJPSS/2021/v33i2430778 Editor(s): (1) Dr. Muhammad Shehzad, The University of PoonchRawalakot AJK, Pakistan. Reviewers: (1) Nooruldeen Shawqi Ali, University of Baghdad, Iraq. (2) Deepika Trehan, ICMR-National Institue of Pathology, India. Complete Peer review History, details of the editor(s), Reviewers and additional Reviewers are available here: https://www.sdiarticle5.com/review-history/78988 Received 07 October 2021 Accepted 14 December 2021 Published 16 December 2021 ABSTRACT A field experiment was conducted during spring 2020-21 at Wetland farms of Tamil Nadu Agricultural University, Coimbatore to study the effect of foliar Nanonutrients (N, Zn and Cu) application on the yield and nutrient uptake by rice at harvest. Twelve treatments with three replications were laid out in randomized complete block design. The results revealed that application of 100% NPK + Nano N at active tillering (T 3 ) and 75% N + 100% PK + Nano N at active tillering (T 4 ) increased the grain yield (5112 and 5063 kg ha -1 ) and N uptake (106.48 and 89.51 kg ha -1 ) of rice, respectively and was on par with 100% NPK + Nano Zn at active tillering and panicle emergence (T 10 ). However, significantly higher Zn and Cu uptake were recorded in 100% NPK + Nano Zn at active tillering and panicle emergence (T 10 , 457.61 g ha -1 ) and 100% NPK + Nano Cu at active tillering and panicle emergence (T 12 , 92.36 g ha -1 ), respectively which was followed by 100% NPK + Nano N at active tillering (T 3 , 372.45 and 81.51 g ha -1 ) and 75% N + 100% PK + Nano N at active tillering (T 4 , 355.41 and 84.13 g ha -1 ). Thus, it can be concluded that application of foliar Nano N at active tillering along with soil application of either 100% NPK or 75% N + 100% PK can provide better results in terms of grain yield and nutrient uptake. Original Research Article