Soil test phosphorus calibration for malting barley (Hordeum vulgare L.) production on Nitisols of Ethiopian highlands. (177). Tropical Agriculture, [S. l.], v. 90, n. 4, 2013. Disponível em: https://journals.sta.uwi.edu/ojs/index.php/ta/article/view/961. Acesso em: 8 feb. 2025.