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

Authors : Edamisan Stephen IKUEMONISAN, Taiwo Ejiola MAFIMISEBI, Igbekele AJIBEFUN, Kemisola ADENEGAN

Pages : 102-114

View : 36 | Download : 24

Publication Date : 2020-12-15

Article Type : Research Paper

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 insert ignore into journalissuearticles values(CAGR); was estimated for the harvested area, production, and yield of cassava. The study adopted Coppock’s instability index insert ignore into journalissuearticles values(CPII); to measure instability in cassava production. Between the period, TE1963-2018, cassava yield oscillated between 9.1 tonnes/ha insert ignore into journalissuearticles values(TE2018); and 11.9 tonnes/ha insert ignore into journalissuearticles values(TE2010); while the output fluctuated between 7.8 million tonnes insert ignore into journalissuearticles values(TE1963); and 59.5 million tonnes insert ignore into journalissuearticles values(TE2018);. In this same period, the CAGR for yield insert ignore into journalissuearticles values(0.1%);, area insert ignore into journalissuearticles values(9.7%); and production insert ignore into journalissuearticles values(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 insert ignore into journalissuearticles values(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