Bernardes, R. F. B., Cardoso, A. F., Bernardes, M. H. D. e Lana, R. M. Q. (2016) “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(4), p. 26–33. doi: 10.36560/942016347.