Evaluation of land suitability for citrus cultivation in Khana Local Government Area of Rivers State, Southern Nigeria

https://doi.org/10.22146/ipas.60307

Kaananwii Dum Peter(1*), Aigboghosa Samson Umweni(2)

(1) Department of Crop/Soil Science, Faculty of Agriculture, Rivers State University P.M.B 5080, Port Harcourt, Rivers State
(2) Department of Soil Science and Land Management Faculty of Agriculture, University of Benin, Benin City, Edo State
(*) Corresponding Author

Abstract


Soils of Khana Local Government Area of Rivers State, Southern Nigeria was evaluated using semi detailed soil survey for citrus cultivation. The purpose of this research was to evaluate the suitability of soils of the study area for the cultivation of citrus. The total land area covers 49,631.54 hectares and was delineated into 8 mapping units based on soil types. One pedon each was dug in each mapping unit and described using the FAO system. The nonparametric method of soil suitability evaluation was used. Four soil orders majorly Inceptisols/Cambisols, Entosols/Arenosols, Ultisols/Acrisols, and Alfisols/Lixisols were identified in the area. The results show that land requirements/characteristics such as climate (mean annual rainfall), wetness (depth to water table) and fertility made the land marginally suitable (S3) to not suitable (N) for citrus cultivation across the eight pedons. The three limitations for citrus cultivation in the area are climate (annual rainfall), wetness (depth to the water table) and fertility (low status of NPK and pH). The land is potentially suitable for citrus cultivation but currently marginally and not suitable due to these three limitations.


Keywords


soil survey, nonparametric method, not suitable, mapping units, marginally suitable



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DOI: https://doi.org/10.22146/ipas.60307

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