Mingotte, Fábio Luiz Checchio, et al. “Physico-Chemical Parameters of Rice Cultivars Fertilized With Nitrogen”. Semina: Ciências Agrárias, vol. 33, no. 6Supl1, Dec. 2012, pp. 2605-18, doi:10.5433/1679-0359.2012v33n6Supl1p2605.