Suitability evaluation of some peri-urban soils for rainfed arable crop production in Lagos State, Southwestern Nigeria

Authors : Julius Romiluyi Orimoloye, Oluwatosin Abimbola Egbinola

Pages : 73-82

Doi:10.18393/ejss.509405

View : 15 | Download : 12

Publication Date : 2019-01-01

Article Type : Research

Abstract :A study was carried out to evaluate the suitability of some Peri-urban soils in Lagos state for arable crop production. Six pedons classified as Alagba (Rhodic Hapludult) , Dodokindo ( Plinthic Kandiudult) , Idesan ( Typic Endoaquept), Owode (Typic Kandiudult), Atan (Fluvaquentic Endoaquept) and Pakoto (Plinthic Kandiudult) Series identified at two study sites located at Igbokuta and Ibomwon communities in Ikorodu and Epe Local Government Areas of Lagos state were evaluated. The land use potentials for maize, cassava and leafy vegetables (Amaranth family) were assessed following the conventional non-parametric and the parametric (square root) methods of land suitability evaluation according to the revised FAO framework. All the pedons were rated as marginally suitable (S3) for maize except Idesan and Owode Series that made up 2.53% and 34.74% of the total area respectively, which were rated moderately suitable (S2). With respect to cassava and leafy vegetables, all the pedons were rated marginally suitable (S3) except Atan Series occupying 19.71 % of the total area, that was rated non-suitable (N1). The major limitations to sustainable crop production in all pedons were low nutrient supply (N, K, P and cations) coupled with high soil acidity (pH of between 3.9 and 5.8). In addition to this, Idesan and Atan series also have waterlogging problem hence may not be used for cultivating the afore-mentioned crops, but could be used for swamp rice. With appropriate liming, soil fertility management and proper drainage, most of the pedons may be rated as being moderately suitable (S2) for the cultivation of these crops. As a peri-urban area with high demand for agricultural products, year-round cropping with irrigation facilities is quite promising in most of the pedons studied.
Keywords : Land Evaluation, soil characteristics, peri-urban agriculture, land use