Nascente, Adriano Stephan, et al. “Phosphorus Fertilization in the Sowing Furrow and Foliar As Affecting the Common Beans Grain Yield”. Semina: Ciências Agrárias, vol. 35, no. 3, June 2014, pp. 1231-40, doi:10.5433/1679-0359.2014v35n3p1231.