Soil chemical attributes and nutritional status of soybean and maize intercropped with Urochloa under nitrogen rates - Ribeiro Barzan, R; Jordão, L. T; Firmano, Ruan Francisco; Secato, T. R; Lima, F; Barzan, L. R; Oliveira Júnior, A. de; Castro, C; Crusciol, C. A. C.; Zucareli, C (Agronomy Journal, 2021)