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Response of Hausa Potato (Solesnostemon rotundifolius Poir) to Different NPK 15:15:15 Fertilizer Rates in Nrcri, Umudike,Abia State, Nigeria


AO Akinpelu
AO Olojede
LEF Amamgbo
SC Njoku

Abstract

The study examined the response of Hausa potato (Solesnostemon rotundifolius Poir) to different rates of NPK 15:15:15 fertilizer. The work was carried out during 2005 and 2006 cropping seasons. The experiment was laid out in split-plot design with three replications. Plant spacing of 100cm x 50cm was used. Four different rates (0,200,400 and 600 kgha-1) of NPK 15:15:15 fertilizer were used in the study. Total harvest was calculated from each unit plot and converted to per hectare yield. The highest average yield (3.81t/ha) was obtained at 200kgha-1 fertilizer rate. This was followed by 0kgha-1 (3.54t/ha).Average yield (3.23t/ha) was recorded at 400kgha-1fertilizer rate. The lowest average yield (2.56t/ha) was recorded at 600kgha-1fertilizer rate. Gross return (N230,100.00/ha) benefit cost ratio (1.40) implies that it is profitable to cultivate Hausa potato in Umudike with the application of NPK 15:15:15 fertilizer at the rate of 200kgha-1.

Keywords: Hausa potato, NPK fertilizer, Gross return, Benefit cost ratioclas

Journal of Agriculture and Social Research (JASR) Vol. 11, No. 1, 2011

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eISSN: 1595-7470