Groundwater samples were evaluated for irrigation purpose, within selected part of Oju area of Benue State, Nigeria. The study area lies within Asu River Group of the Lower Benue Trough, southern part of Nigeria. Physicochemical parameters were analyzed using APHA, 2012 method. Results from the study showed that pH falls within slightly basic to acidic, with Ec value ranging from 127 to 760 μS/cm, SSP ranges from 1.53 to 43.78, Sodium Percentage ranges from 1.55 to 77.8 %, Kelly Ratio ranges from 0.01 to 0.77, Magnesium Absorption Ratio ranges from 0.00 to 61.98 and total hardness Total Hardness ranges from 72.00 to 425.5 within the study area. The above listed parameters were below various permissible standard value for irrigation except for MAR at LBT/04, Na % at LBT/09, 13 and 14, SAR at 01 and 04 and TH at LBT/04 that were slightly above various permissible standard values. From Gibbs plot it was observed that rock dominance is the major factor that influences groundwater except for few sampling point were precipitation dominance was observed to have influence on groundwater within the study area.
If the inline PDF is not rendering correctly, you can download the PDF file here.
 I.A. Goni P. Edet S. Olasehinde P. Adelana and Vrbka “An overview of the geology and hydrogeology of Nigeria IAH - Selected Papers on Hydrogeology” 2008.
 M.O. Eyankware P.N. Obasi and O.C. Akakuru “Use of Hydrochemical Approach in Evaluation of Water Quality around the Vicinity of Mkpuma Ekwaoku Mining District Ebonyi State SE. Nigeria for Irrigation Purpose” Indian Journal of Science vol. 23(88) pp 881-895 2016.
 M.O. Eyankware “Hydrochemical Apprasial of Groundwater for Irrigation Purpose: A Case Study of Ekaeru Inyimagu and Its Adjoining Area Ebonyi State Nigeria” Indian Journal of Science Vol. 23(88) pp. 924-94 2016.
 M.O. Eyankware “Hydrogeochemical Evaluation of Groundwater for Irrigation Purposes in Mining Areas of Umuoghara Near Abakaliki SE. Nigeria” Science and Technology Vol. 3(9) pp. 1-19 2017.
 M.O. Eyankware V.S. Nnajieze and C.G. Aleke “Geochemical Assessment of Water Quality for Irrigation Purpose in Abandoned Limestone Quarry pit at Nkalagu area Southern Benue Trough Nigeria” Environ Earth Science Vol. 77 pp. 66 2018a. https://doi.org/10.1007/s12665-018-7232-x.
 V.O. Ezeh M.O. Eyankware O.O. Irabor and P.N. Nnabo “Hydrochemical Evaluation of Water Resources in Umuoghara and its environs near Abakaliki South Eastern Nigeria” International Journal of Science and Healthcare Research Vol. 1(2) pp. 23-31 2016.
 M.J. Islam M.A. Hakim M.M. Hanafi S.J. Abdul A. Sharmin S. Aysha A.K.M. Shajedur M.A. Islam and M.A. Halim “Hydrogeochemical quality and suitability studies of groundwater in northern Bangladesh” Journal of Environmental Biology Vol. 35 pp. 765-779 2013.
 A. Sreenivasa and N.A. Ajaykumar “Water Quality Assessment for Drinking and Irrigational Suitability of Galgibagh River Sub-basin (GRSB) Goa” International Journal of Scientific Research in Science Engineering and Technology Vol. 1(6) pp. 327-331 2015.
 C.K. Jain A. Bandyopadhyay and A. Bhadra “Assessment of Ground Water Quality for Irrigation Purpose District Nainital Uttarakhand India” Journal of Indian Water Resources Society Vol. 32(3-4) pp. 8-14 2012.
 P.N. Obasi M.O. Eyankware B.B.E. Akudinobi and M.O. Nweke “Hydrochemical Investigation of Water Resources around Mkpuma Ekwaoku Mining District Ebonyi State Southeastern Nigeria” African Journal of GeoScience Research Vol. 3(3) pp. 01-07 2015.
 Y.O. Balogun “Senior Secondary school Atlas” 2nd Edition Longman Pp. 161 2005.
 M.D. Cocker “Geochemistry and hydrochemistry of the Oconee River Basin. In: Hatcher KJ (ed) Proceedings of 1995” Georgia water resources conference held on the 11–12 April University of Georgia pp. 67–70 1995.
 K. Pazand Y. Gbanbari B. Aghavali and A. Hezarkhani “Groundwater Geochemistry in the middle Meshkinshahr basin of Ardabil province in Iran” Environ Earth Sci. pp. 1131-8 2011.
 S.O. Nwachukwu “The Tectonic Evolution of the Southern Portion of the Benue Trough Nigeria” Geological Magazine Vol. 109 (05) pp. 411–419 1972.
 C.R. Cratchley and G.P. Jones “An Interpretation of the Geology and Gravity Anomalities of Benue valley” Nigeria: Oversea Geological survey Geophysics Vol. 1 pp. 29 1965.
 K. Burke T.F.G. Dessavaige and A.J. Whiteman “The Opening of Gulf of Guinea and Geological History of the Benue Depression and Niger Delta” Nature Physics. Sci. Vol. 233 pp. 51-55 1971.
 N.K. Grant “South Atlantic Benue Trough and Gulf of Guinea Cretaceous Triple Junction” Bull. Geo. Soc. Am. Vol. 82 pp. 2295-2298 1971.
 J. Benkhelil “The Origin and Evolution of the Cretaceous Benue Trough Nigeria.” Journal of African Earth Sciences (and the Middle East) Vol. 8(2&4) pp. 251–282 1989.
 S.C. Obiora and A.C. Umeji “Petrographic Evidence for Regional Burial Metamorphism of the Sedimentary Rocks in the Lower Benue Rift” J. African Journal of Earth Science Vol. 38 (3) Pp 269 2004.
 A. Simpson “The Nigerian Coalfield. The geology of parts of Onitsha Owerri and Benue Provinces” Bulletin Geological Survey Nigeria Vol. 24(8) pp. 85 1954.
 R.A. Reyment “Aspects of the Geology of Nigeria: The Stratigraphy of the Cretaceous and Cenozoic Deposits” Ibadan University 1965.
 C.S. Nwajide “Geology of Nigeria’s Sedimentary Basin” CSS Bookshops Ltd Lagos Pp. 565 2013.
 C.A. Kogbe “Geology of Nigeria” Elizabethan Publishing Company 1976.
 A.D.N. Bain “The Nigerian coalfields section 1. Enugu area” Bull. Geol. Surv. Nig Vol. 6 pp. 106-120 1924.
 M.E. Offodile “The Geology of the Middle Benue Nigeria” Paleontologiska inst. Uppsala universitet 1976.
 S.O. Nwachukwu “The Tectonic Evolution of the southern portion of the Benue Trough Nigeria” Geological Magazine Vol. 109(05) pp. 411–419 1972.
 L.C. Amajor “The Cenomanian Hiatus in the Southern Benue Trough Nigeria” Geological Magazine Vol. 122(01) pp. 39–50 1985.
 C.S. Nwajide “Cretaceous Sedimentation and Paleogeography of the Central Benue Trough” In: Ofoegbu C.O; (Ed.) The Benue Trough structure and Evolution International Monograph Series Braunschweig pp. 19-38 1990.
 APHA “Standard methods for the examination of water and wastewater 22nd Edn” American Public Health Association 2012.
 W. Hounslaw “Water Quality Data: Analysis and Interpretation” CRC Press Boca Raton Pp. 71-127 1995.
 P.A. Domenico and F.W. Schwartz “Physical and Chemical hydrology” John Wiley and sons New York 410 1990.
 L.A. Richards “Diagnosis and improvement of saline and alkali soils. In: United States Salinity Laboratory Staff Agricultural Handbook No. 60” The United States Government Printing Office Washington DC 1969.
 D.K. Todd “Groundwater Hydrology” 2nd ed. John Wiley and Sons Inc. New York pp. 516 1980.
 H.M. Raghunath “Groundwater” 2nd Ed. Wiley Eastern Ltd. New Delhi India pp. 344-369 1987.
 F.M. Eaton “Significance of carbonates in irrigation waters” Soil Sci. Vol. 39 pp. 123–133 1950.
 L.D. Doneen “Water quality for agriculture” Department of irrigation University of California. Davis. Pp. 48 1964.
 W.P. Kelly “Use of Saline Irrigation Water” Soil Sci Vol. 95(4) pp. 355-39 1963.
 L.D. Doneen “Stalinization of soil by salt in the irrigation water Amer” Geophys. Union. Trans. Vol. 35 pp. 943-950 1954.
 R.J. Gibbs “Mechanisms controlling world water chemistry” Science Vol. 170(3962) 1088–1090 1970.
 D.M. Joshi A. Kumar and N. Agrawal “Assessment of irrigation water quality of River Ganga in Haridwar District India” J. chem.. Vol. 2(2) 285-292 2009.
 F.F. Munshower “Practical Handbook of Disturbed Land Re-vegetation” Lewis Publishers Boca Raton Florida 1994.
 L.V. Wilcox “Classification and use of irrigation water” USDA Circular Washington DC USA pp. 969 1955.
 A.O. Talabi O.L. Afolagboye M.N. Tijani J.A. Aladejana and Ogund “Hydrogeochemistry of Some Selected Springs’ Waters in Ekiti Basement Complex Area Southwestern Nigeria” International Journal of Engineering and Science Vol. 3(2) pp. 19-30 2014.
 U.S. Salinity Lab “Saline and Alkali Soils – Diagnosis and Improvement of U.S. Salinity Laboratory” Agriculture Hand Book No.60 Washington 1954.
 B. Hanson S.R. Grattan and A. Fulton “Agricultural Salinity and Drainage. University of California Irrigation Program” Davis: University of California 1999.
 F.A. Sawid and A.A. Issa “Assessment of groundwater quality for drinking and irrigation purposes” Martubah plain eastern Libya Transactions on Ecology and The Environment Vol. 196 pp. 311-325 2015.
 C.N. Sawyer and P.L. McCarty “Chemistry for sanitary engineer” 2nd Ed. McGraw–Hill New York Pp. 518 1967.
 R.N. Subba and R.P. Surya “Major ion chemistry of Groundwater in a River Basin: a study from India” Environ Earth Sci. Vol. 61 pp. 757–775 2010.
 M.O. Eyankware C. Ogwah and G.C. Okeke “Geochemical Evaluation of Groundwater Origin Using Source Rock Deduction and Hydrochemical Facies at Umuoghara Mining Area Lower Benue Trough SE Nigeria” International Research Journal of Earth Science Vol. 6(10) pp. 1-11 2018b.
 O.O. Omo-Irabor M.O. Eyankware and C. Ogwah “Integration of Hydrogeochemical Analytical Methods and Irrigation Parameters in the Evaluation of Groundwater Quality at Ibinta Southern Benue Trough Nigeria” FUPRE Journal of Scientific and Industrial Research Vol. 2 (1) pp. 38-49 2018c.
 D.K. Chadha “A proposed new diagram for geochemical classification of natural waters and interpretation of chemical data” Hydrogeol. J. Vol. 7 pp. 431–439 1999.
 J.D. Hem “Study and interpretation of the chemical characteristics of natural water” 2nd edn. US Geol Surv Water Supply Paper Vol. 2254 pp. 363 1985.