BALLÁNÉ KOVÁCS, A.; KREMPER, R.; KINCSES, I.; LEVICZKY, Ágnes. Influences of different organic fertilizers on nutrients of humic sandy soil and on the growth of Spinach (Spinacia oleracea L.). Acta Agraria Debreceniensis, [S. l.], n. 70, p. 23–28, 2016. DOI: 10.34101/actaagrar/70/1812. Disponível em: https://ojs.lib.unideb.hu/actaagrar/article/view/1812. Acesso em: 17 oct. 2021.