Greener Journal of Agricultural Sciences

Excellence and Timeliness


Change Language

Ngome et al

Greener Journal of  Agricultural Sciences Vol. 3 (6), pp. 451-457, June 2013.

 ISSN: 2276-7770 

Research Paper

Manuscript Number: 030613519


Effects of Cassava Cultivation on Soil Quality Indicators in the Humid Forest Zone of Cameroon


Ngome Ajebesone Francis*, Amougou Mbatsogo Felix Constant, Tata Precillia Ijang, Ndindeng Sali Atanga, Mfopou Mewouo Yvette Clarisse, Mapiemfu-Lamare Delphine, 

 Njeudeng Tenku Simon


Institute of Agricultural Research for Development (IRAD), P.O. Box 2123 Yaoundé, Cameroon.


*Corresponding Author’s Email: ngomajebe @ yahoo. com


A study was conducted at Ongot in the humid forest zone (HFZ) of Cameroon to determine the extent to which selected soil quality indicators are affected by cassava cultivation along a chronosequence of 5, 10 and 20 years. Soil samples were collected from cassava farms along this chronosequence and from a nearby forest as reference. The samples were analyzed for soil organic matter (SOM), organic carbon (OC), total nitrogen (TN) and pH. SOM, OC and TN decreased significantly (P<0.05) following years of cassava cultivation. Thus after 20 years of cultivation, SOM and OC contents reduced by 50% compared to the reference (SOM=35.08 g kg-1, OC=20.39 g kg-1). TN decreased from 2.19 g kg-1 in the reference to 1.24 g kg-1 in farms where cassava has been cultivated for 20 years. Soil pH ranged from 5.4 to 5.6 but did not differ (P<0.05) irrespective of years of cassava cultivation. Generally, significant differences in soil quality indicators were not observed between the forest soil and soils from five-year old cassava farms. This could imply that management strategies to improve soil quality in the HFZ of Cameroon are warranted mainly after four years of cassava cultivation.

Keywords: Carbon, Chronosequence, Manihot esculenta cranz, Nitrogen, pH.

Return to Content   View Reprint (PDF) (191KB)

Call for Articles/Books

Call for Scholarly Articles

Authors from around the world are invited to send scholary articles that suits the scope of this journal. The journal is currently open to submissions and will process and publish articles daily, immediately they are ready.

The journal is centered on quality and goes about its processes in a very timely fashion. Seasoned editors/reviewers will be consulted to review each article(s), profer quality evaluations and polish the articles with expertise before publication.

Use our quick submit button to submit or simply send your article(s) as an e-mail attachment to or

Call for Books

You are also invited to submit your books for online or print publication. We publish books related to all academic subject areas.    Submit as an e-mail attachment to


Login Form

Other Journals