Citation | Razzaq, T., M.F. Khan and S.I. Awan. 2019. Study of northern corn leaf blight (NCLB) on maize (Zea mays L.) genotypes and its effect on yield. Sarhad Journal of Agriculture, 35(4): 1166-1174. DOI | http://dx.doi.org/10.17582/journal.sja/2019/35.4.1166.1174