[Agboola A.A., Corey R.B. (1973): Soil testing N, P, K for maize in soils derived from metamorphic and igneous rock of Western State of Nigeria. Nigerian Journal of West Africa Science Association 17(2): 93-100.]Search in Google Scholar
[Aung K.M., Takeo Y., Yoshinori K., Khin K.M.M., Takahide Z. (2010): Nitrogen dynamics in a paddy field fertilised with mineral and organic nitrogen sources. American- Eurasian Journal of Agriculture and Environmental Sciences. 7(2): 221-231.]Search in Google Scholar
[Cater M.R. (1993): Soil sampling and methods of analysis. Canadian Society of Soil Science, Ottawa, Ontario, Canada, 212 p.]Search in Google Scholar
[Chen T.H.H., Murata N. (2002): Enhancement of tolerance of abiotic stress by metabolic engineering of betaines and other compatible solutes. Current Opinion in Plant Biology 5(3): 250-257.10.1016/S1369-5266(02)00255-8]Search in Google Scholar
[Dowling N.G., Greenfield S.M., Fisher K.S. (1998): Sustainability of Rice in the Global Food System.1st Ed. International Rice Research Institute. Los Banos, Philippines, p. 404.]Search in Google Scholar
[Fujii M., Miyamoti Y., Ishihara S. (2006): Studies on drought resistance of Oryza sativa L., and NERICA- Comparison of water Use Efficiency estimated by pot experiment. Journal of Crop Science 75 (Extra Issue 2): 144-145.]Search in Google Scholar
[Guowei W., Wilson T.L., McChung A.M. (1998): Contribution of rice tillers to dry matter accumulation and yield. Agronomy Journal 90:317- 325.10.2134/agronj1998.00021962009000030001x]Search in Google Scholar
[Herdt R.W. (1991): Research Priorities for Rice Biotechnology. In: Rice Biotechnology, Khush, G.H. and G.H. Tenniessen (Eds.). CAB international. Wallingford, UK, pp. 19-54.]Search in Google Scholar
[Lambers H., Poorter H. (1992): Inherent variation in growth rate between higher plants: A search for physiological causes and ecological consequences. Advances in Ecoogical Research 23: 187-261.10.1016/S0065-2504(08)60148-8]Search in Google Scholar
[Matsunami M., Matsunami T., Kokubun M. (2009): Growth and yield of New Rice for Africa (NERICAs) under different ecosystems and Nitrogen levels. Plant Production Science 12 (3): 381-389.10.1626/pps.12.381]Search in Google Scholar
[Maynard D.G., Kalra Y.P. (1993): Nitrate and exchangeable ammonium nitrogen. In: Cater, M.R. (Ed.), Soil sampling and methods of analysis. Canadian Society of Soil Science, Ontario, Canada, pp. 25-38.]Search in Google Scholar
[Muhammed U., Ehsan U., Ejaz W., Muhammed F., Amir L. (2003): Effect of organic and inorganic manures on growth and yield of rice variety ‘Basmati-200’. International Journal of Agriculture and Biology 5(4): 481-483.]Search in Google Scholar
[Myint A.K., Yamakawa T., Zenmyo T. (2010): Application of different organic and mineral fertilisers on the growth, yield and nutrient accumulation of rice in a Japanese ordinary paddy field. Science and World Journal 5(2): 47-54.]Search in Google Scholar
[Onyango J.C., Suratta R.R., Inukai Y., Asanuma S., Yamauchi A. (2007): Responses in dry matter production of NERICA to soil moisture stress. Japanese Journal of Crop Science76 (Extra issue 1): 168-169.]Search in Google Scholar
[Serna M.D., Pamares F. (1991): Comparison of biological and chemical methods to predict nitrogen mineralisation in animal wastes. Biology and Fertility of Soils 12(2): 89-94.10.1007/BF00341481]Search in Google Scholar
[Sims J.T., Wolf D.C. (1994): Poultry waste management: Agriculture and Environmental issues. Advances in Agronomy 52: 2-83.]Search in Google Scholar
[Takahashi S., Uesosono S., Nagatomo M. (2004): Rice uptake of Nitrogen from aerobically and anaerobically composted poultry manure. Journal of Plant Nutrition 27(4): 731-741.10.1081/PLN-120030378]Search in Google Scholar
[Van Averbeke W., Juma K.A., Tshikalange T.E. (2007): Yield response of Africa leafy vegetables to nitrogen, phosphorus and potassium. The case of Brassica rapa L. subsp. chinensis and Solanum retroflexum Dun. Water SA 33(3): 355-362.]Search in Google Scholar
