Review of Cassava Production in Nigeria: Trends and Decomposition Analysis Approach

Year 2020, Volume: 6 Issue: 2, 102 - 114, 15.12.2020

Edamisan Stephen Ikuemonısan Taiwo Ejiola Mafımısebı Igbekele Ajıbefun Kemisola Adenegan

Abstract

This study analyzed the growth rate, the instability in the growth trend, and examined the contributions of yield and area to cassava production output in Nigeria. Using time-series of the selected variables which spanned through 1961-2018, the compound annual growth rate (CAGR) was estimated for the harvested area, production, and yield of cassava. The study adopted Coppock’s instability index (CPII) to measure instability in cassava production. Between the period, TE1963-2018, cassava yield oscillated between 9.1 tonnes/ha (TE2018) and 11.9 tonnes/ha (TE2010) while the output fluctuated between 7.8 million tonnes (TE1963) and 59.5 million tonnes (TE2018). In this same period, the CAGR for yield (0.1%), area (9.7%) and production (9.9%) were positive and statistically significant at 1% except for yield. The decomposition analysis for the period revealed that the increase in output was largely due to an increase in area harvested during the period (110.4%). In view of these and other findings, the study recommends intensive planting of improved cassava varieties under well mapped out sustainable strategies to optimize production.

Keywords

cassava production, trends, exponential growth rate, instability, decomposition analysis

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