Azza, E., Hideto, U., Abdel, G. and Naomi, A. (2007) Uptake of Carbon and Nitrogen through Rice Root from 13C and 15N Dual Labelled Maize Residue Compost. International Journal of Biological Chemistry, 1, 75-83. http://dx.doi.org/10.3923/ijbc.2007.75.83
 Hussein, E.O. and Atalla, A.A. (2010) Effect of Fertilization on Growth and Dry Matter Accumulation in Mangrove (Avicennia marina (Forssk) Vierh) Grown in Western Saudi Arabia. JKAU: Met. & Arid Land Agric. Sci., 21, 57-70.
 Fening, J.O., Ewusi-Mensah N. and Safo, E.Y. (2011) Short-Term Effects of Cattle Manure Compost and NPK Application on Maize Grain Yield and Soil Chemical and Physical Properties. Agricultural Science Research Journal, 1, 69-83.
 Sharpe, R.R., Schomberg, H.H., Harper, L.A., Endale, D.M., Jenkins, M.B. and Franzluebbera, A.J. (2004) Ammonia Volatization from Surface Applied Poultry Litter under Conservation Tillage Management Practices. Journal of Environmental Quality, 33, 1182-1188. http://dx.doi.org/10.2134/jeq2004.1183
 Agboola, A.A. and Sobulo, R.A. (1981) A Review of Soil Fertility in Southwestern Zone, Nigeria. FDALR. Kaduna Report, 6, 1-15.
 Ayeni, L.S. (2011) Integrated Plant Nutrition Management: A Panacea for Sustainable Crop Production in Nigeria. International Journal of Soil Science, 6, 19-24.
 Arthanari, P.M., Ramasamy, S. and Amanullah, M.M. (2007) Nutrient Uptake as Influenced by Post Panicle Initiation Nutrient Management in Rice Plant Organ. Research Journal of Agriculture and Biological Sciences, 3, 621-624.
 Hassanein, K.M. and Abul-Soud, M. (2010) Effect of Different Compost Types and Application Methods on Growth and Yield of Three Maize Hybrids. Journal of Applied Sciences Research, 6, 1387.
 Shu , Y. (2005) Effect of Application of Different Types of Organic Composts on Rice Growth under Laboratory Conditions. Soil Science & Plant Nutrition, 51, 443-449. http://dx.doi.org/10.1111/j.1747-0765.2005.tb00051.x
 Food and Agricultural Organization (FAO) (1988) World Reference Base for Soil Resources. World Soil Resources Report 84, FAO, Rome.
 Akanbi, W.B. and Togun, A.O. (2002) The Influence of Maize-Stover Compost and Nitrogen Fertilizer on Growth Yield and Nutrient Uptake of Amaranth. Scientia Horticulture, 93, 1-8. http://dx.doi.org/10.1016/S0304-4238(01)00305-3
 Lara, A. (2006) Compost—What Is It? California Integrated Waste Management Board. http://www.ciwmb.ca.gov/Organics/html
 IITA (1990) Selected Methods for Plant and Soil Analysis. Manual Series No. 7, International Institute of Tropical Agriculture (IITA), Ibadan.
 Bouyoucos, J. (1962) Hydrometer Method Improved for Making Particle Size Analysis. Agronomy Journal, 54, 39-45. http://dx.doi.org/10.2134/agronj1962.00021962005400050028x
 Bray, R.H. and Kurtz, L.T. (1945) Determination of Total Organic and Available Forms of Phosphorus in Soils. Soil Science, 59, 39-45. http://dx.doi.org/10.1097/00010694-194501000-00006
 Walkey, A. and Black I.A.C. (1966) An Examination of Degit Jareff Method for Determining Soil Organic Matter and a Proposal Modification of the Chronic Acid Titration Method. Soil Science, 37, 29-38. http://dx.doi.org/10.1097/00010694-193401000-00003
 AOAC (1998) Association of Official Analytical Chemists. 16th Edition, Arlington.
 Ombod, R.I. (1994) Self-Sufficiency in Local Fertilizer Production for Nigeria. Proceedings of the Third African Soil Society Conference, Ibadan, 10-14 May 1998, 1-10.
 Statistical Analysis System (SAS) Institute (2002) SAS/STAT User’s Guide. Version 8, 6th Edition, SAS Institute, Cary, 112.
 Zai, A.K.E., Takatsugu, H. and Tsutomu, M. (2008) Effects of Compost and Green Manure of Pea and Their Combinations with Chicken Manure and Rapeseed Residue on Soil Fertility and Nutrient Uptake in Wheat—Rice Cropping System. African Journal of Agricultural, 3, 633-639.
 Dada, O.A., Thomas, A.S. and Oworu, O.O. (2012) Response of Upland Rice (Oryza sativa L) Cultivars to Split Application of Compost on Highly Weathered Soil of Derived Savannah Agro-Ecology. Annals of West University of Timisoara, ser. Biology, 15, 167-176.
 Ndaeyo, N.U., Iboko, K.U., Harry, G.I. and Edem, S.O. (2008) Growth and Yield Performance of Some Upland Rice (Oryza sativa L.) Cultivars as Influenced by Varied Rates of NPK (15:15:15) Fertilizer on Ultisol. Journal of Tropical Agriculture, Food, Environment and Extension, 7, 249-255.
 Fan, X.R., Shen, Q.R., Ma, Z.Q., Zhu, H.L., Yin, X.M. and Miller, A.J. (2005) A Comparison of Nitrate Transport in Four Different Rice (Oryza sativa L.) Cultivars. Science in China Series. C: Life Sciences, 48, 897-977.
 Saito, K., Atlin, G.N., Linquist, B., Phanthaboon, K., Shiraiwa, T. and Horie, T. (2007) Performance of Traditional and Improved Upland Rice Cultivars under Non-Fertilized and Fertilized Conditions in Northern Laos. Crop Science, 47, 2473-2481. http://dx.doi.org/10.2135/cropsci2006.12.0779
 Saito, K. (2010) Progress in Genetic Improvement to Increase Rice Yield of West Africa. Being a Report Presented at the 28th International Rice Research Conference, 8-12 November 2010, Hanoi.
 Rahman M.H., Ali, M.H., Ali, M.M. and Khatun, M.M. (2007) Effect of Different Level of Nitrogen on Growth and Yield of Transplant 2007. Aman Rice cv BRRI dhan32. International Journal of Sustainable Crop Production, 2, 28-34.
 Zhang, L., Lin, S., Bouman, B.A.M., Xue, C., Wei, F., Tao, H., Yang, X., Wang, H., Zhao, D. and Dittert, K. (2009) Response of Aerobic Rice Growth and Grain Yield to N Fertilizer at Two Contrasting Sites near Beijing, China. Field Crop Research, 114, 45-53. http://dx.doi.org/10.1016/j.fcr.2009.07.001
 Dobermann, A. and Fairhurst, T. (2000) Rice. Nutrient Disorders & Nutrient Management. Handbook Series, Potash & Phosphate Institute (PPI), Potash & Phosphate Institute of Canada (PPIC) and International Rice Research Institute, 191 p.
 Adeoye, P.A., Adebayo, S.E. and Musa, J.E. (2011) Growth and Yield Response of Cowpea (Vigna unguiculata) to Poultry and Cattle Manure as Amendment on Sandy Loam Soil Plot. Agricultural Journal, 6, 218-221.
 Okonkwo, C.I., Onyibe, C., Nwite, J., Igwe, T.S., Njoku, C. and Mbah, C.N. (2012) Physical Characteristics and Maize Grain Yield in an Ultisol in South Eastern Nigeria Amended with Four Animal Manures. International Research Journal of Agricultural Science and Soil Science, 2, 77-80.
 El-Tanahy, A.M.M., Asmaa, R.M., Mona, M.A. and Aisha, H.A. (2012) Effect of Chitosan Doses and Nitrogen Sources on the Growth, Yield and Seed Quality of Cowpea. Austrialian Journal of Basic and Applied Sciences, 6, 115-121.
 Saito, K., Linquist, B., Atlin, G.N., Phanthaboon, K., Shiraiwa, T. and Horie, T. (2007) Response of Traditional and Improved Upland Rice Cultivars to N and P in Northern Laos. Field Crop Research, 96, 216-223. www.sciencedirect.com
 Eghball, B., Ginting, D. and Gilley, J.E. (2004) Residual Effects of Manure and Compost Applications on Corn Applications on Corn Production and Soil Properties. Agronomy Journal, 96, 442-447. http://dx.doi.org/10.2134/agronj2004.0442