ASSESSMENT OF PHYSICAL AND CHEMICAL PARAMETERS OF MODAL SOIL IN RELATION TO POND CONSTRUCTION AND PRODUCTIVITY IN NIGERIA

O. E. OMOFUNMI, O. A. OLORUNNISOLA

Abstract


A study was carried out for five weeks to examine physical and chemical parameters of modal soil in selected areas in relation to pond setting and productivity in Lagos State, Nigeria. Physical (water temperature, soil permeability, bulk density and textural) and chemical parameters (pH, nitrogen and phosphorus) were determined according to standard. Results showed that the soil of the study area belongs to four different textural classes: sandy, sandy clay, clay loam and sandy clay loam. The sandy clay was dominant with 38 % proportion, sandy (28 %), sandy loam (28 %) and sandy clay loam was least with 6 % proportion of the prevalent soil textural class in the study area. Soil permeability (6.2 – 24.9 mm/hr) exceeded the permissible value 4mm/hr, Soil bulk density and pH (1.20 – 1.57g/cm3) and (5.3 – 7.3) were within acceptable limits of 1,4g/cm3 and 7.5 respectively. Nitrogen (20.20 – 29.30 ppm) and phosphorus (1.93 – 6.57 ppm) contents for different soil locations were less than the recommended values of 50.0 and 9.0ppm respectively. These results revealed that the soil locations were not suitable for pond construction and productivity. Pond to be built in these areas requires special techniques such as building of clay core, puddle and compaction and application of lime and
fertilizer.


Keywords


Parameters, Modal soil, pond construction, productivity, Lagos State

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References


American Public Health Association (APHA) 2005. Standard Methods for the Examination of Water and Wastewater, 16th and 17th Eds. Washington, DC; American Water Works Association, Water Control Federation.

Banerjee S M. (2001). Water quality and Soil conditions of fish ponds in some states of India in relation to fish production. India. IPF.20 (2): 14 - 83

Boyd, C. E. (2001). Nitrogen, Phosphorus loads vary by system, USEPA should considersystem variables in setting new effluent rules Global Aquaculture V Advocate,

Vol 4 No.6 pp:84-

Boyd CE (2009). Bottom soils, sediments and pond aquaculture pp 219 – 221

Coche AG (2006). Simple Method for Aquaculture Soil Fresh Water Fish Culture Vol. 8: Pg.10 -34, 44 – 59.

Capper PT, Cassie WF and Geddes J D (2005). Problems in Engineering Soils, London Spin. Ltd, 6th Edition.

Coche AG. and Muir JR. (2002). Simple Method for Aquaculture Pond Construction for FAO/IIASA ( 2008). Harmonized World Soil database’’ version 1.0, FAO, Rome, Italy & ASA, Laxenburg, Austria

Kumar P (2004). Fish Culture in Undrainable Ponds, Central Institute of Fisheries Education, India Agricultural Research Versova, Bombay, India, pp. 32 – 43, 94 – 123.

Omofunmi OE (2010). A Technical assessment of fish ponds in Lagos State, Nigeria. M.Phil. Thesis (Unpublished)

Singh VP (2007). The management of fish ponds with Acid Sulphate Soils. Asian

aquaculture 12(3): pp. 30 - 35

Huet, M. (2002). Textbook of Fish Culture Breeding and Cultivation of Fish. Farnham,

Survey Fishing News books, Revised and Enlarged 5th Edition, New York.

Wheaton, F.N. (1999). Aquacultural Engineering. Wiley Interscience, New York. 6th Edition.

Whitis GN (2002). Watershed fish production ponds: guide to site selection and ccontruction. Texas Cooperative Extension. Southern Regional Aquaculture Publication SRAC 102: pp 12 - 14


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