Determinants of technical efficiency differentials among users and non-users of fertilizer: A case of food crop farmers in south-western Nigeria. (271). Tropical Agriculture, [S. l.], v. 92, n. 4, 2015. Disponível em: https://journals.sta.uwi.edu/ojs/index.php/ta/article/view/907. Acesso em: 28 apr. 2025.