Steiner, F., Lana, M. do C., Zoz, T., Frandoloso, J. F., & Fey, R. (2015). EXTRACTION METHODS AND POTASSIUM AVAILABILITY FOR SOYBEAN IN THE PARANA STATE’S SOILS, BRAZIL. REVISTA DE AGRICULTURA NEOTROPICAL, 1(2), 83–92. https://doi.org/10.32404/rean.v1i2.232