Biochemical fertility index and enzyme activity of mid-laterite soils in coconut-growing systems in Kerala (AEU 9). International Journal of Green Agriculture and Agrotechnical Sciences, [S. l.], p. 21–25, 2026. Disponível em: https://ecoagrotex.com/index.php/ijgaas/article/view/18. Acesso em: 28 oct. 2026.