Biochemical fertility index and enzyme activity of mid-laterite soils in coconut-growing systems in Kerala (AEU 9). Intern. Jour. Green Agric. Agrote. Scie. [Internet]. 2026 Mar. 28 [cited 2026 Oct. 27];:21-5. Available from: https://ecoagrotex.com/index.php/ijgaas/article/view/18