The effects of water pressure, manure and chemical fertilizer on grain yield and nutrient content in barley. International Journal of Manures and Fertilizers, [S. l.], v. 3, n. 1, p. 508–511, 2014. Disponível em: https://ijpp.org/journal/index.php/ijmf/article/view/116. Acesso em: 24 mar. 2026.