Bernardes, R. F. B., A. F. Cardoso, M. H. D Bernardes, e R. M. Q. Lana. “Establishment of DRIS Indices and Foliar Nutrient Levels for Corn Plants Fertilized With Various Nitrogen Doses and Source Materials Associated With Marine Alga Lithothamnium”. Scientific Electronic Archives 9, no. 4 (setembro 22, 2016): 26–33. Acessado fevereiro 7, 2023. https://sea.ufr.edu.br/SEA/article/view/347.