Rós, Amarílis Beraldo, Nobuyoshi Narita, and Andréia Cristina Silva Hirata. 2014. “Sweet Potato Yield and Physical and Chemical Properties of Soil in Function of Organic and Mineral Fertilizers”. Semina: Ciências Agrárias 35 (1):205-14. https://doi.org/10.5433/1679-0359.2014v35n1p205.