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JACR - Abstract
Comparative effects of chicken manure and NPK on the yield of Ipomoea batatas
Saviour Okon Nsa*, D. P. Okon and S. P. Robert
Research Article | Published December 2013
Journal of Agricultural and Crop Research, Vol. 1(6), pp. 90-93
Agricultural education unit, Department of Vocational Education, Faculty of Education, University of Uyo, Nigeria
*Corresponding author. E-mail: saviouronsa1@yahoo.com
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Sweet potato is rarely grown by rural farmers in Akwa-Ibom State, making its demand to be higher than supply. Thus, there is need to explore crop management options to increase its production in the area. In this study, we determined the effect of manures on the yield of sweet potato in Uyo metropolis. Two improved varieties of sweet potato (TIS87/0087 and NRSP 05/022) were evaluated under chicken manure versus NPK Mg (12:12:17:2) fertilizers. There was no significant yield difference between TIS 87/0087 and NRSP 05/022 varieties under chicken manure. It was recommended among others that, fertilizers with high proportion of potassium (NPK. Mg (12:12:17:2) be used by sweet potato farmers in Akwa-Ibom State in order to boost yield and maintain soil fertility.
Key words: chicken manure, NPK, soil fertility and yield of ipomea batatas.
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Citation: Saviour ON, Okon DP, Robert SP (2013). Comparative effects of chicken manure and NPK on the yield of Ipomoea batatas. J. Agric. Crop Res. 1(6): 90-93.
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