CHEN, Danyan et al. Effects of urea-N and CO2 coupling fertilization on the growth, photosynthesis, yield and anthocyanin content of hydroponic purple cabbage Brassica campestris ssp. chinensis. International Journal of Agricultural and Biological Engineering, [S. l.], v. 16, n. 5, p. 123–131, 2023. Disponível em: https://www.ijabe.migration.pkpps06.publicknowledgeproject.org/index.php/ijabe/article/view/7566. Acesso em: 26 feb. 2026.