Characterization and Classification of Selected Rice Soils of Tropical Rainforest Region, Southeastern Nigeria
Agriculture, Forestry and Fisheries
Volume 4, Issue 3-1, May 2015, Pages: 46-50
Received: Feb. 25, 2015;
Accepted: Feb. 25, 2015;
Published: May 19, 2015
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S. N. Obasi, Department of Agricultural Technology, Imo State Polytechnic, Umuagwo Imo State, Nigeria
E. U. Onweremadu, Soil Science Department, Federal University of Technology, Owerri, Imo State Nigeria
Egbuche C. T., Department of Forestry and Wildlife Technology, Federal University of Technology, Owerri, Imo State Nigeria
U. P. Iwuanyanwu, Department of Agricultural Technology, Imo State Polytechnic, Umuagwo Imo State, Nigeria
The study carried out in Amachi Izzi, Abakaliki, tropical rainforest region, Southeastern Nigeria was aimed at characterizing and classifying the lowland rice soils of the area. Three pedons were sunk, at the region. Results showed that soils were strongly acidic (pH <5.0), profiles 1 and 3 had low organic matter while profile 2 was moderate. Total nitrogen was also low to medium while available P was medium. Sand exhibited low variation (CV ≤15%) at Profile 2 while it indicated moderate variation (CV>15≤35%) at Profile 1 and Profile 3. Silt varied lowly (CV≤15%) at Profile 1 and moderately (CV>15≤35%) at Profile 2 and Profile 3. Clay varied highly (CV>35%) in all pedons of Abakaliki lowland soils. Base saturation varied highly (CV>35%) at Profile 1 and Profile 2 and lowly (CV≤ 15%) at Profile 3. Al saturation varied highly (CV>35%) in all pedons at Ebonyi north lowlands. Ochric epipedons were observed in pedons 1, 2 and 3 and diagnostic subsurface horizons were kandic. The temperature regime and percentage base saturation were considered at the subgroup level in the soil taxonomy. Pedons 1 and 2 were classified as Fluvaquentic Eutrudepts and Eutric Cambisol (FAO – WRB) while Pedon 3 was classified as Fluvaquentic Dystrudepts and Dystric Cambisol (FAO – WRB).
S. N. Obasi,
E. U. Onweremadu,
Egbuche C. T.,
U. P. Iwuanyanwu,
Characterization and Classification of Selected Rice Soils of Tropical Rainforest Region, Southeastern Nigeria, Agriculture, Forestry and Fisheries. Special Issue: Environment and Applied Science Management in a Changing Global Climate.
Vol. 4, No. 3-1,
2015, pp. 46-50.
IITA (1990) Annual Report 1989/90.International Institute of Tropical Agriculture, Ibadan Nigeria.
IITA (1994) Annual Report 1993/94.International Institute of Tropical Agriculture, Ibadan Nigeria.
Akpokodje, G; Lancon, F and Erenstein, O (2001) Nigeria\s rice economy: State of the Art. USAID Project report on the Nigerian rice economy in a competitive world:Constraints, opportunities and strategic choices. West Africa rice development Association (WARDA), Bouake, Cote d’Ivoire.
Windmeijer, P.N., and W. Andriesse, (1993). Inland Valleys in West Africa: An Agro- Ecological Characterization of Rice Growing Environments. International Institute for Land Reclaimation and Imporvement.P.O. Box 45, 6700 AA Wageningen.The Netherlands.
IRRI (1978).Soils and Rice. IRRI, Los Barios, The Philippines Kern, J. S., 1994. Spatial patterns of soil organic carbon in the contiguous United States, Soil Science Society of America Journal, 58: 439-55.
Moorman, F. R (1981). Representative of toposequence of soils in southern Nigeria and their pedology. In: Characterization of soils in relation to their classification and management for crop production D. J Greenland (ed). Clarendo Press Oxford. Pp10-29.
Mbah, C.N., Anikwe, M.A.N. Onweremadu, E.U. and Mbagwu, J.S.C. (2007). Soil organic matter and carbohydrate contents of a Dystric Leptosol under organic waste management and their role in structural stability of soil aggregates. Int. J. Soil Sci. 2(4)L 268-277.
Edeh, H.O., Eboh E.C., and Mbah, B.N., (2011). Analysis of Environmental Risk Factors Affecting Rice Farming in Ebonyi State, Southeastern Nigeria. World Journal of Agricultural Sci. 7(1): 100-103)
Gee, G.W., and Or D. 2002. Particle size distribution: In Dane J.H., Topp G.C. (eds). Methods of soil analysis Part 4 Physical methods. Soil Sci. Soc. Am Book series No. 5 ASA and SSSA, Madison WI; 225-293.
Grossman, R.B., Reinsch, T.G.(2002). Bulk density and linear extensibility, In: Dane, J.H., Topp, G.C. (eds). Methods of soil analysis, part 4 physical methods. Soil Sci. Soc. Am. Book Series No.5 ASA and SSSA, Madison WI 2002; 201-228
Hendershot, H.W., H.L. Lalande and Duquette, 1993, Soil Reaction and Exchangeable Acidity in: Soil Sampling and Methods of Analysis. Cartar, M.R. (Ed.), Can. Soc. Soil Sci. Lewis Publishers, London, pp: 141-145.
Nelson, D. W and L. E. Sommers. (1982). Total Carbon, Organic Carbon and Organic Matter in: Sparks, D. L. (Eds.), Methods of Soil Analysis. Part 3. SSSA Books Series No 5 SSSA Madison,
Bremner, J.M. and Mulvany, C.S. 1982. Nitrogentotal. In: Methods of Soil Analysis, Part 2, Ed. A.L. P.G Miller and D.R. Keeney (eds.) American Society of Agron. Madison WI, pp 593-624
Olson, S. R. and L. E. Sommers. (1982). Phosphorus in: Methods of Soil Analysis. A. L. Page, R. HMiller and D. R. Keeney (eds). Maidson, W. I AmericalSciety of Agronomy: 1572pp
Wilding, L.P. (1985). Spatial variability, its documentation, accommodation and implication to soil surveys, pp. 166-194. In D.R. Nielsen and J. Bouma (eds.) Soil Spatial Variability: Produc, Wageningen, Netherlands.
Moberg, J. P. and Esu I. E., (1991) Characteristics and composition of some savanna soils of Nigeria Geoderma 48:113-129.
Essoka, A.W and Esu, I.E., (2001) Physical properties of inland valley soils of central Cross- River State of Nigeria. In Proceedings of the 27th annual conference of Soil Science Society of Nigeria 5-9th Nov. 2001 Calabar, Nigeria.
Ayolagha, G.A (2001) Survey and Classification of Yenagoa meander belt soils in the Niger- Delta. In Proceedings of the 27th annual conference of Soil Science Society of Nigeria 5-9th Nov. 2001 Calabar, Nigeria.
Onweremadu, E.U., Ndukwu, B.N., Opara, C.C and Onyia, V.N (2007).Characterization of wetland soils of Zarama, Bayelsa, State, Nigeria in relation to Fe and Mn distribution. Int. J. of Agriculture and Food Systems 1(1):80-86.
Chikezie, A., Eswaran, H., Asawalam, D.O., and Ano, A.O. (2009). Characterization of the benchmark soils of contrasting parent materials in Abia State, South-eastern Nigeria. Global J. of Pure and Applied Sciences 16(1) 23-29.
Akamigbo, F.O.R., (1999). Influence of land use on soil properties of the humid tropical agro-ecology of Southeastern Nigeria. Niger Agric J. 30: 59-76.
Soil Survey Staff (1996), Soil quality information sheet; soil quality indicators Aggregate stability National Soil Survey Center in collaboration with NRCS, USDA and the national Soil Tilth.Laboratory, ARS, USDA.
Khan, M.S.H, Abedin, M.M.J., Afrin A and Khosruzzaman, M. (2006). Physicochemical changes of paddy soils under long term intensive fertilization. Asian J. of plant Sciences 5(1) 105-110.
Soil Survey Laboratory Staff, (1992). Soil Survey Laboratory methods manual. USDA-SCS Soil Survey Investigations Report No. 42 Version 20. US Government Print Office Washington DC.
Tabi, F.O., M. Omoko, A. Boukong, Ze.A.D. Mvondo, D. Bitondo and C. Fuh Che (2012), Evaluation of lowland rice (Oryza sativa) production system and management recommemdations for Logone and Chari flood plain- Republic of Cameroon. Agr Sc. Research J. Vol. 2(5): pp261 – 273.
Lekwa, G., (1986). Soils of tidal marshes in the Kono-Imo River estuary, Rivers State, Nigeria. Niger J. Soil Sci. 6:47-56.