Journal of Agriculture & Social ResearchAkinpelu AO, Olojede AO, Amamgbo LEF, Njoku SC (2011). Response of Hausa potato (Solesnostemon rotundifolius Poir) to different NPK 15:15:15 fertilizer rates in NRCRI, Umudike, Abia State, Nigeria. J. Agric. Soc. Res.11(1):22-25....