Floraceli R. Rodillas 2004. Yield Performance of Sweet Potato (BNAS 51) in Response to Different Amounts of NPK (14-14-14) Application. The Vector: International Journal of Emerging Science, Technology and Management (IJESTM). 13, 1 (Dec. 2004). DOI:https://doi.org/10.69566/ijestm.v13i1.177.