NAVARRO, A. A.; PADDA, D. S. Effects of Sulfur, Phosphorus, and Nitrogen Application on the Growth and Yield of Sweet Potatoes Grown on Fredensborg Clay Loam. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 67, n. 2, p. 108–111, 1983. DOI: 10.46429/jaupr.v67i2.7699. Disponível em: Acesso em: 8 feb. 2023.