Barbosa, Newton Cabral, Hamilton Seron Pereira, Everton Martins Arruda, Elias Brod, and Risely Ferraz de Almeida. 2017. “Spatial Distribution of Phosphorus in the Soil and Soybean Yield As Function of Fertilization Methods”. Bioscience Journal 34 (1). Uberlândia, MG:88-94. https://doi.org/10.14393/BJ-v34n1a2018-36607.