Citation | Nazir, Q., M. Aftab, G. Sarwar, A. Riaz, S. Hussain, I. Saleem, A. Kalsom, N.U. Sabah, M.A. Tahir, A. Rehman and M. Arif. 2021. Effectiveness of zinc coated, blended and bio-activated zinc coated urea to quality, biochemical parameters and yield in rice crop (Oryza sativa L.). Pakistan Journal of Agricultural Research, 34(3): 524-532. DOI | https://dx.doi.org/10.17582/journal.pjar/2021/34.3.524.532