Citation | Akbar, F., N. Ahmed, M. Mussarat, I. Ahmed, D. Muhammad, T. Ahmad, M.A. Akbar, S. Rafique, S. Ali, S. Aslam, B.H. Shah, F. Ahmad and M.A. Khan. 2024. Effect of trichoderma applied with different sulfur levels on yield and sulfur uptake by onion (Allium cepa L.). Sarhad Journal of Agriculture, 40(2): 286-294. DOI | https://dx.doi.org/10.17582/journal.sja/2024/40.2.286.294