NECHAEVA, T. V. Influence of calibration solutions on the results of available phosphorus measurement in soils . The Journal of Soils and Environment, [S. l.], v. 5, n. 4, p. e187, 2022. DOI: 10.31251/pos.v5i4.187. Disponível em: https://soils-journal.ru/index.php/POS/article/view/187. Acesso em: 24 jul. 2024.