LELESZ, Éva Judit. The purple coneflower’s (Echinacea purpurea L.) nutrient requirements investigation in a small plot trial. Acta Agraria Debreceniensis, [S. l.], n. 74, p. 95–99, 2018. DOI: 10.34101/actaagrar/74/1671. Disponível em: https://ojs.lib.unideb.hu/actaagrar/article/view/1671.. Acesso em: 17 jul. 2024.