The Potential of Cassava (Manihot esculenta Crantz) Peels as an Organic Fertilizer



Cassava peels are in large quantity and practically of no economic value in many developing nations such as Cameroon, where cassava is widely consumed and processed far beyond other crops. Cassava peels might be used in those countries to face declining soil fertility and soil erosion. This study aimed to evaluate the composting of cassava peels without any additional material and the effect of the increasing quantity of cassava peels in the bin during the process of composting and to assess some physico-chemical qualities, biological properties and the phytotoxicity of the produced composts. After three months  of composting the produced  composts (C1; C2; C3 and C4)  had a dark brown color, relatively dry, uniform structure and its texture were similar to the soil's texture. Their electrical conductivity was in between 1499 and 1924 µ pH (6.50-6.73), was slightly acid, great for the cultivation of sweet pepper. They were rich in minerals (Mg; Ca; K+; and Na+) and poor in heavy metals such as (Cu, Zn and Mn). The composts C/N ratios were between 13.15 to 13.42. The produced composts showed a germination index and the rate of germintion greater than 80% at all concentrations, indicating the absence of phytotoxicity. The increased amounts of cassava peels did not undermine the process of composting and positively impact fungi and bacteria populations. Indeed, cassava peels are good subtracts that can be used to produce stable organic fertilizers, with higher liming potential, nutrient content, and less hazardous material which could be used in farms to remediate declining soil fertility and to promote sustainable agriculture.


Cassava Peels Composting, Phytotoxicity, Sustainable Agriculture


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Research Article

How to Cite

O. Dieudonne, . J. Nguefack, J. B. . Dongmo Lekagne, C. . Dakole Daboy, and . G. Ndonkeu Mangoumou, “The Potential of Cassava (Manihot esculenta Crantz) Peels as an Organic Fertilizer”, Int. Ann. Sci., vol. 10, no. 1, pp. 107-117, Jan. 2021.