VULCHINKOV , Zhelyazko; HRISTOVA-CHERBADZHI, Miroslava. Effect on the plastid pigments content and grain yield in two maize hybrids following treatment with microbial fertilizers of the “Microbtimа” group. Bulgarian Journal of Crop Science, Sofia, BG, v. 63, n. 5, p. 19–29, 2026. DOI: 10.61308/BDUL4627. Disponível em: https://agriacad.eu/ojs/index.php/bjcs/article/view/7356.. Acesso em: 4 nov. 2026.