KOVALENKO, S. S. Spatial and temporal variability of available phosphorus content in the arable soil layer according to different methods. AgroChemistry and Soil Science, [S. l.], v. 92, p. 71–79, 2021. DOI: 10.31073/acss92-08. Disponível em: https://agrochemsoilsci.org/index.php/journal/article/view/48.. Acesso em: 16 jul. 2026.