Determination of Minimal Duration Essential for Isolation of Humic Acids From Soils in Forest Restoration Programmes

Mohd Ramzan Nur Hanisah, Osumanu Haruna Ahmed, Kasim Susilawati, Nik Muhamad Ab. Majid and Mohamadu Boyie Jalloh

American Journal of Agricultural and Biological Sciences 3 ( 3 ): 597 - 601 , 2008