PUUSTJÄRVI, V. Relationship between soil nurient concentration and plant nutrient status . Agricultural and Food Science, [S. l.], v. 46, n. 3, p. 271–276, 1974. DOI: 10.23986/afsci.71884. Disponível em: https://journal.fi/afs/article/view/71884. Acesso em: 21 may. 2024.