HUSSAIN , F. .; MALIK , K. A. .; NAQVL , M. H. . A COMPARATIVE STUDY OF DIFFERENT METHODS FOR OBTAINING AN INDEX OF NITROGEN AVAILABILITY IN UPLAND SOILS. Biological Sciences - PJSIR, [S. l.], v. 37, n. 6-7, p. 258–264, 2022. Disponível em: https://v2.pjsir.org/index.php/biological-sciences/article/view/2679. Acesso em: 22 jul. 2024.