Evaluation of Water Sources for Sawah Management in the Restoration of Degraded Lowlands and Sustainable Rice Production in Southeastern Nigeria


  • John Chukwu Nwite Federal College of Agriculture, Ishiagu, Ebonyi State, Nigeria.
  • B. A. Essien
  • C. I. Keke
  • C. A. Igwe
  • T. Wakatsuki


sawah, amendments, rice grain yield, soil properties, inland valleys


Agricultural productivity in Nigeria fluctuates, mainly because the country’s agriculture is rain-fed and subsistence farmers rely on the rain as the main backbone of farming in the country. Consequently, traditional water management systems in the lowlands rice production in Ebonyi State that is regarded as a major rice producing State in Nigeria  who also rely on the rain, are characterized by the fact that farmers focus on storage of water in the rice field, without any possibility to divert water from one place to another. In an attempt to arrest the declining productivity of the inland valley soils in these zones due to poor water control and fertility management, four different organic sources, including the control (Rice husk; Rice husk ash; Poultry droppings at 10 t/ha and NPK 20:10:10 at 400 kg/ha and 0 t ha-1) were used in three different water sources (sawah types) (rain-fed, pump-fed and spring-fed sawah) in two inland valleys in southeastern Nigeria to evaluate their effects on some soil properties and rice grain yield. Sawah is generally described as a controlled water management in the field where the soil is expected to be puddle, leveled and bunded in order to impound water provided by rain water or by rise in the level of a river in an inland valley. A split- plot in a randomized complete block design was used to asses the two factors at different levels. Three sources of water (sawah types); rain-fed sawah, spring type and pump type constituted main plot, while the amendments, that constituted the sub- plots were applied as follows: 10 tha-1 rice husk (RH); 10 tha-1 of rice husk ash; 10 tha-1 of poultry droppings; 400 kgha-1 of N.P.K. 20:10:10 and 0 tha-1 (control). The treatments were replicated three times in each of the subplots. The results of the study showed that the soil pH was significantly improved by different water types in the two locations. As the pH was improved statistically upon by different soil amendments in the two sites, the interaction of water sources and amendments only significantly improved the pH in Ikwo location. The results also indicated that soil organic carbon and total nitrogen were positively influenced in the two locations by both the different water sources and amendments. The result shows a significant improvement on the CEC by both factors in Ikwo site. It was also recorded that available phosphorous were positively improved by different water sources and amendments in different forms in the two locations. The result equally indicated that rice grain yiled was positvely increased in both locations by the studied factors.

Author Biography

John Chukwu Nwite, Federal College of Agriculture, Ishiagu, Ebonyi State, Nigeria.

Department of Crop Production Technology



FAOSTAT. Database. Food and Agriculture Organization, Rome. Accessed November 2005.

[http://faostat.fao.org/], 2005.

Bhattacharya A. Sustainable Livelihood Based Watershed Management – Watershed Plus Approach, 2nd

Working Group meeting of ERIA, Japan IGES, 2008.

FAO. Nepal country profile. http://www.fao.org/countryprofiles, 2002.

Wani S.P, Sreedevi T.K, Rockstrom J, Ramakrishna Y.S. “Rainfed Agriculture – Past Trends and Future

Prospectsâ€, In: Wani SP, Rockstrom J and Oweis T (eds) (2009). Rainfed Agriculture: unlocking the potential,

Oxfordshire: CABI International, 2009.

Kadigi R.M.J, Kashaigili J.J, Mdoe N.S The economics of irrigated paddy in Usangu Basin in Tanzania: Water

utilization, productivity, income and livelihood implications. Phys. Chem. Earth, 29/15-18: 1091-1100, 2004.

Rockstrom, J. Green water security for the food makers of tomorrow: Windows of opportunity in drought-prone

savannahs. Water Science and Technology 43 (4):71-78, 2001.

Agarwal, A. and Narain, S. Dying Wisdom. Rise, Fall and Potential of India’s Traditional Water Harvesting

System. Centre for Science and Environment, Faridabad. India: Thomson Press Ltd, 1997.

Benites, J., Chuma, E., Fowle, R., Kienzle, J., Molapong, K., Manu, J., Nyagumbo, I., Steiner, K. and van

Veenhuizen, R. (eds). Conservation Tillage for Sustainable Agriculture. Proceedings from an International

Workshop, Harare, 22–27 June. Part 1. Workshop Report. Deutsche Gesellschaft, GTZ, Eschborn, Germany, 59

pp, 1998.

Rockström, J. and Falkenmark, M. Semiarid Crop Production from a Hydrological Perspective: Gap Between

Potential and Actual Yields. Critical Reviews in Plant Sciences, Vol. 19(4), pp. 319-346, 2000.

SIWI. Water Harvesting for Upgrading of Rain-fed Agriculture. Problem Analysis and Research Needs. SIWI

Report 11, Stockholm International Water Institute (SIWI), Stockholm, Sweden, 97 pp, 2001.

Gowing J.W, Young M.D.B, Hatibu N, Mahoo H.F, Rwehumbiza F, Mzirai, O.B. Developing Improved

Dryland Cropping Systems For Maize In Semi-Arid Tanzania. Part II. Use of a Model to Extrapolate and Add

Value to Experimental Results, Exp. Agric., 9(3): 293-306, 2003.

Abu – Awwad, M and A. Kharabshed. Influence of supplemental irrigation and soil surface furrow on barley

yield in arid areas affected by surface crust. J. Arid Environ. 46: 227 – 237, 2000.

Moormann, F.R. Problem in characterizing and classifying wetland soils. In wetland soils. Characterization,

classification, utilization. Proceeding of a workshop 26 mar. to 5 April 1984, 53-68, IRRI, Los Banos,

Philippines, 1985.

Wakatsuki, T; Koski, T. and Palada, M. Ecological engineering for sustainable rice farming in inland valley

(Ivs) in West Africa. Paper presented at the second WAFSRN symposium. Accra, Ghana, 1989.

Windmeijer, P. N. and Andriesse, W. Inland valleys in West Africa: An Agro-ecological characteristics of

rice- growing environment, pp28-37, ILRI. Wageningen, The Netherlands, 1993.

Otoo, E. and Asubonteng, K.O. Reconnaissance characterization of inland valleys in Southern Ghana. In

characterization of inland valley Agron-ecosystems. A tool for their sustainable use. Proceeding of a

workshop, 6 to 10 Nov. 1995, p 149-160. WARDA, Bouake, Ivory Coast, 1995.

Hirose, S and Wakatsuki, T. Restoration of inland valley ecosystems in West Africa.Pp56-86, 222-2224.

Association of agriculture and forestry statistics. Megro-Sumiya building, Tokyo, Japan, 2002.

Hayashi, K and T. Wakatsuki. Sustainable soil fertility management by indigenous and scientific knowledge

in Sahel zone of Niger, in the CD- ROM Transactions of the 17th World congress of soil science, symposium

No. 15. perceptions of soil management: Matching indigenous and scientific knowledge systems, paper No.

, 2002.

Igwe, C.A; J. C. Nwite; K. U. Agharanya; Y. Watanabe; S. E. Obalum; C. B. Okebalama & T. Wakatsuki.

Aggregate-associated soil organic carbon and total nitrogen following amendment of puddled and sawah managed rice soils in Southeastern Nigeria, Archives of Agronomy and Soil Science, DOI:10.1080/03650340.2012.684877, 2012.

USDA. Keys to Soil Taxonomy. Natural Resources Conservation Services, United States Department of

Agriculture, Washington, D.C, 1998.

FAO. Soil Map of the World: 1:5 million (Revised Legend). World Soil Resources Report, 60. Food and

Agricultural Organization (FAO), Rome, 1988.

Gee G.W and Bauder J.W Particle Size Analysis. In: Klute A (ed) Methods of Soil Analysis, part 1: Physical

and Mineralogical Properties. Agronomy Monograph No 9. American Society of Agronomy, Madison, pp 91–

, 1986

McLean, E.O. Soil pH and lime requirement. In: A.L. Page, R.H. Miller and D.R. Keeny, (eds.). Methods of Soil

Analysis, Part 2. Am. Soc. Agron., Madison, pp: 199-224, 1982.

Nelson D.W, and Sommers L.E. Total carbon, total organic carbon and organic matter. In: Sparks DL (ed)

Methods of soil analysis, part 3: chemical methods. Agronomy Monograph No 9. American Society of

Agronomy, Madison, pp 961–1010, 1996.

Bremner, J.M. and Mulvancy, C.S. Total Nitrogen. In: A.L. Page et al., (eds.). Methods of Soil Analysis. No.9;

part 2, Amer. Soc. Of Agron. Inc, Madison, Wisconsin, USA. 595- 624, 1982.

Thomas, G.W. Exchangeable cations. In: A.L. Page, R.H. Miller and D.R. Keeny, (eds.), Methods of Soil

Analysis, Part 2. Am. Soc. Agron. Monogr., Madison, pp: 159-165, 1982.

Bray, R.H and L.T. Kurtz. Determination of total organic carbon and available forms of phosphorous in soils.

Soil Sci. J. 59: 39-43, 1945.

Igwe CA, Nwokocha D. (2006). Soil organic matter fractions and microaggregation in a

ultisol under cultivation and secondary forest in southeastern Nigeria. Aust J Soil

Res. 44: 627–635.

USDA (2003). Keys to soil Taxonomy 9th edition. ONRCS. USDA Soil Conservation

Service, Washington. D.C.

Ezemonye, M. N. and Emeribe, C. N. (2012). Rainfall Erosivity in Southeastern Nigeria.

Ethiopian Journal of Environmental Studies and Management EJESM Vol. 5 No.

2012. Pp 112 – 122.

Takase, M; L.K. Sam-Amoah and J.D. Owusu-Sekyere. The effects of four sources of irrigation water on soil

chemical and physical properties. Asian Journal of Plant Science 10(1): 92 – 96, 2011. ISSN 1682 – 3974/

DOI:10.3923/ajps.2011.92.96. © 2011 Asian Network for Scientific Information, 2011.

Abyhammer, T; A. Fablin; A. Nelson and V. Henfrindison. Askater Foringssystem Deiproject I: Tekniker

Ochmojiligheter. (Production of wood ash, techniques and possibilities), pp: 341. In Swedish with English

Summary), 1994.

Markikainen, P.N. Nitrification in two coniferous forest soils after different fertilizer treatments. Soil Biol.

Biochem., 16: 577 – 882, 2002.

Nwite J.C; S.E. Obalum; C.A. Igwe; and T. Wakatsuki. Properties and Potential of Selected Ash Sources for

Improving Soil Condition and Sawah Rice Yields in a Degraded Inland Valley in Southeastern Nigeria. World

Journal Agricultural Sciences 7(3): 304-310. 2011. ISSN 1817-3047, 2011.

Opara-Nadi, O.A; B.S. Ezua; A. Wogu, Organic manures and inorganic fertilizers addeded to an acid ultisol in

Southeastern Nigeria: II. Effects on soil chemical properties and nutrient loss, In: proceedings of the 15th

Annual Conf. SSSN, Kaduna, Nigeria, 1987.

Follet R.F. Soil carbon sequestration and greenhouse gas mitigation. Soil Sci Soc Am J. 74:345–346, 2010.

Lee S.B, Lee C.B, Jung K.Y, Park K.D, Lee D, Kim P.J. Changes of soil organic carbon and its fractions in

relation to soil physical properties in a long-term fertilized paddy. Soil Till Res. 104:227–232, 2009.

Bhagat, R.M. and Verma, T.S. Impact of rice straw management on soil physical properties and wheat yield.

Soil Sci. 152: 108-115, 1991.

Kyuma, K and Wakatsuki, T. Ecological economy sustainability of paddy rice systems in Asia. In: Juo,

A.S.R. and Russell, D.F. (eds.); Agriculture and Environment. Bridging Food production in developing

countries. ASA special publication No. 60, p 139-159, ASA, CSSA, SSA, Wisconsin, 1995.

Greenland, D. J. Sustainability of Rice Farming, CABI, Wallingford, and IRRI, Los Banõs, The Philippines,

Barron, J., Rockstrom, J., Hatibu, N. and Gichuki, F. Dry spell occurrence and maize yields for two locations in

semi-arid East Africa. Agricultural Forest and Meteorology (in press);117 (1–2): 23–37, 2003.

Quinn, R.E, Faerman, S.R, Thompson, M.P & McGrath, M.R. Becoming a Master Manager. A Competency

Framework (3rd edn.), John Wiley & Sons, Hoboken, NJ, 2003.

Mupangwa W, Love D, Twomlow S. Soil–water conservation and rainwater harvesting strategies in the semi-

arid Mzingwane Catchment, Limpopo Basin, Zimbabwe, Phys. Chem. Earth, 31 15-16): 893-900, 2006.

Makurira H, Mul M.L, Vyagusa N.F, Uhlenbrook S, Savenije H.H.G. Evaluation of community-driven

smallholder irrigation in dryland South Pare Mountains, Tanzania: A case study of Manoo micro dam, Phys.

Chem. Earth, 32(15-18): 1090-1097, 2007.

Imolehin E.D, Wada A.C. Meeting the rice production and consumption needs of Nigeria with improved

technologies. Int Rice Commiss Newsl FAO, Rome 49:33–41, 2000.

Abe, S. S., Buri, M. M., Issaka, R. N., Kiepe, P., and Wakatsuki, T. ‘Soil fertility potential for rice production in

West African lowlands’, Japan Agricultural Research Quarterly, Vol 44, pp 343–355, 2010.

Eswaran, H., Almaraz, R., Van den Berg, E., and Reich, P. ‘An assessment of the soil resources of Africa in

relation to productivity’, Geoderma, Vol 77, pp 1–18, 1997.

Becker, M., and Johnson, D. E. ‘Improved water control and crop management effects on lowland rice

productivity in West Africa’, Nutrient Cycling Agroecosystems, Vol 59, pp 119–127, 2001.

Ofori, J., Y. Hisatomi, A. Kamidouzono, T. Masunaga. and T. Wakatsuki. Performance of rice cultivars in

various sawah ecosystems developed in inland valleys, Ashanti region, Ghana. Soil Sci. Plant Nutr. 51:469 –

, 2005.

Touré, A., Becker, M., Johnson, D. E., Koné, B., Kossou, D. K., and Kiepe, P. ‘Response of lowland rice to

agronomic management under different hydrological regimes in an inland valley of Ivory Coast’, Field Crops

Research, Vol 114, pp 304– 310, 2009.




How to Cite

Nwite, J. C., Essien, B. A., Keke, C. I., Igwe, C. A., & Wakatsuki, T. (2013). Evaluation of Water Sources for Sawah Management in the Restoration of Degraded Lowlands and Sustainable Rice Production in Southeastern Nigeria. Asian Journal of Agriculture and Food Sciences, 1(3). Retrieved from https://ajouronline.com/index.php/AJAFS/article/view/318