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Tropentag, September 14 - 16, 2022, Prague

"Can agroecological farming feed the world? Farmers' and academia's views."


Analyzing effects of soil on maize production in the ecological zones of Imo state Nigeria

Fidelis Okorie1, Fidelis Okorie2

1Imo State University Owerri, Department of Geography and Environmental Management, Nigeria
2Imo State University Owerri, Department of Geography and Environmental Management, Nigeria


Abstract


This study aimed to analyse the effects of physicochemical properties of soil on maize crop production in Imo State, Nigeria, with the view to contribute to the crop production improvement in the area. The study was conducted in the three selected soil and ecological zones in the State. In the research, maize crop was identified due to its position among staple crops and relevance to the socio-economic well-being of the people of Imo State and Nigeria in general. Methodology involved free soil survey method after the three zones; Egbema, Okwelle, and Uzoagba in the state were purposely selected for representation of the soil sampling. Auger sampling was conducted at 0-20 and 20-40 cm depths for crop production purposes while soil profile sampling was done for in-depth characterisation and scientific classification of soils. Secondary data for the study involved collection of available annual crop yield data on maize for the Sate over 30 years ranging from 1988 to 2017. The data was collected from Agriculture Development Programme headquarters in Owerri. Soil data from auger samples underwent analysis of variance and soil parameters were regressed against crop yield to establish relationship existing among some soil properties and the crop. The results show significant negative correlation between moisture content and maize yield (r –0.6490) and Exchangeable Al correlated significantly negatively with maize yield, while Bulk density, CS, exchangeable K and TS significantly positively with maize yield. Results showed that soil factors significantly, influence the yield of maize in the area and soil chemical properties of the state is generally low. Therefore improving the fertility status of soil and improving soil quality is a panacea for better maize yield. Similarly some soil factors do not favour maize while some soil factors do and hence understanding these factors will help in policy managing agricultural lands for crop production.



Keywords: Analysis, ecological zones, effects, maize production, soil properties


Contact Address: Fidelis Okorie, Imo State University Owerri, Department of Geography and Environmental Management, Imsu road, 460222 Owerri, Nigeria, e-mail: fidelisokorie@yahoo.co.uk


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