They note that these inputs are essential for increasing the yields of their plots, ranging from 7.5 tonnes per hectare of paddy rice under optimal irrigation and input use to 1.5 tonnes per hectare in the event of malfunctions in irrigated zones (Walther, 2008). The use of agricultural fertilizers is particularly widespread in Nigeria, where its sale is subsidised without having major effects on national productivity (Takeshima and Liverpool-Tasie, 2015). In some cases, as in Benin, government departments distribute enhanced seeds free of charge. In Cote d'Ivoire, where rice production has doubled in less than four years, government policies have been credited with increasing the availability of land and water resources for rice production while improving the regulatory environment for private sector engagement on enhanced financial services and input markets (CARD, 2014).