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Mapongmetsem, P.M. (2001) Evaluation and Management of Agroforestry Gardens in Adamaoua. Major Research Program of the University of Ngaoundéré, Came-roon. Annual Report No. 2, 30 p.

has been cited by the following article:

• TITLE: Effects of Rhizobial Fertilizer and Compost on Cowpea (Vigna unguiculata (L.) Walp.) Production in the Sudanian Zone of Chad

  AUTHORS: Doloum Gomoung, Beyem Tog-Yeallah, Angéline Kemsol Nagorngar, Naïla Kadingam, Mbaïguinam Mbaïlao

  KEYWORDS: Organic Fertilizers, Cowpea, Yield, Sudanian Zone, Chad

  JOURNAL NAME: American Journal of Plant Sciences, Vol.17 No.3, March 31, 2026

  ABSTRACT: To improve soil fertility, cowpea yield, and promote organic and sustainable agriculture in sub-Saharan Africa, particularly in Chad, a study was conducted on the effect of Rhizobium and compost on cowpea (Vigna unguiculata L.) variety IT99K-573-1-1. This study evaluated the agronomic impact of Rhizobium inoculation and compost application on cowpea production in the Sudanian zone of Chad. Using a randomized complete block design with three treatments (T1, T2, T3), researchers compared growth parameters and yield between treated plots and an unfertilized control. The results indicate that both organic fertilization methods significantly improved plant height, biomass, and grain yield compared to the control. Yield per hectare was improved by 11.39% and 13.92% respectively for the Rhizobium and compost treatments compared to the control.