HARTIKAINEN, H. Effect of cumulative fertilizer dressings on the phosphorus status of mineral soils II Comparison of two phosphorus testing methods. Agricultural and Food Science, [S. l.], v. 61, n. 2, p. 61–66, 1989. DOI: 10.23986/afsci.72353. Disponível em: https://journal.fi/afs/article/view/72353. Acesso em: 23 dec. 2024.