LELESZ, Judit Éva; JÓZSEF CSAJBÓK. The changes of the purple coneflower’s (Echinacea purpurea L.) herb and radix drug yield under different fertilization conditions. Acta Agraria Debreceniensis, [S. l.], n. 1, p. 79–83, 2019. DOI: 10.34101/actaagrar/1/2375. Disponível em: https://ojs.lib.unideb.hu/actaagrar/article/view/2375.. Acesso em: 19 may. 2024.