The exposure and adoption of New Rice for Africa (NERICAs) among Ghanaian rice farmers: What is the evidence?

Abstract

The sustainable development of the rice sector in Ghana is constrained by environmental, socioeconomic, research and development factors. Productivity is generally low, about 1 mt/ha under upland and rain-fed lowland rice ecologies which dominate rice production systems in the country. The release and diffusion of the New Rice for Africa (NERICA) varieties across many countries in Africa (including Ghana) brought renewed hope to both farmers and the research community because of the desirable qualities associated with the NERICAs, and therefore their potential to improve food security on a sustainable basis. This study therefore sought to assess the extent of exposure and adoption of the NERICA varieties across the rice growing districts in Ghana, and determine the key factors that affect adoption. A total of 489 rice producing households from three districts (Ejura-Sekyedumase, Hohoe and Tolon-Kumbungu) were involved in the study. The study employs the average treatment effect (ATE) methodology which provides an appropriate framework for the identification and consistent estimation of the population adoption rate and that of the determinants of adoption. The study finds that exposure to NERICA varieties is generally low in Ghana with an average rate of about 6%. Similarly, the adoption of improved rice varieties is low, and the adoption of NERICA varieties is about 6% of the total sample surveyed. The study shows that experience, education and location are important determinants of exposure, while age and access to extension also affect adoption. It is therefore recommended that much effort and resources should be invested in promotional activities to facilitate both the exposure and adoption of the NERICAs among farmers in Ghana.