Impact of Two Compound Fertilizer Types on the Performance of Three Cassava Varieties (Manihot esculenta Crantz) in Humid Tropics, Port Harcourt, Nigeria


Published: 2023-10-04

Page: 109-116

Lawson T. S. *

University Farm, University of Port Harcourt, P.M.B. 5323, Rivers State, Nigeria.

Gbaraneh L. D.

Department of Crop/Soil Science, Rivers State University, P.M.B. 5080, Port Harcourt, Nigeria.

*Author to whom correspondence should be addressed.


The evaluation of the performance of three cassava varieties was studied using two compound fertilizer types at the Teaching and Research Farm, Rivers State University Port Harcourt between March 2021 and February 2022. The treatments were combined in a split plot arrangement in a Randomized Complete Block Design (RCBD) with three replicates. Parameters evaluated were number of branches and canopy diameter at four weekly intervals starting from tenth weeks after planting and ending to fresh/dry pulp weight and fresh/dry peel weight were also taken. Results show that cassava variety TMS 95/0289 interacting with NPK 15-15-15 produced the highest branches per plot (24.7), TMS 96/0523 interacting with NPK 15-15-15 produced the widest canopy diameter per stand (263.1cm), fresh peels weight and dry peels weight (129.7g and 100.3g). TME 419 interacting with NPK 15-15-15 compound fertilizer produced the highest fresh and dry pulp weight with mean values of 722.7 and 487.0. Application of NPK fertilizer especially NPK 15-15-15 enhanced number of branches, dry pulp weight, dry peels weight and canopy diameter. TME 419 had higher fresh/dry pulps and dry peels weight while TMS 96/0523 had high fresh peels weight and canopy width respectively. Whereas cassava variety TMS 95/0289 was high in number of branches. Thus it is recommended that TME 419 be introduced to farmers as it produced highest pulp weight per stand. Also, fertilizer NPK 15-15-15 is a preferred NPK fertilizer as it has the capability in increasing the number of branches, canopy width, peels weight and pulp weight in comparison with NPK 20-10-10.

Keywords: Cassava, varieties, growth, yield, performance, compound fertilizer

How to Cite

Lawson T. S., & Gbaraneh L. D. (2023). Impact of Two Compound Fertilizer Types on the Performance of Three Cassava Varieties (Manihot esculenta Crantz) in Humid Tropics, Port Harcourt, Nigeria. Asian Journal of Plant and Soil Sciences, 8(1), 109–116. Retrieved from


Download data is not yet available.


Earle R. The Body of the conquistador: Food, race, and the colonial experience in Spanish America, 1492–1700. New York: Cambridge University Press. 2012;54–57.

CAB International. Invasive Species Compendium, 2022; EU.

El-Sharkawy MA. Drought- tolerant cassava for African, Asia and Latin America breeding project work to stabilize productivity without increasing pressures on limited natural resource. Bioscience. 1993;43:441- 451.

Manyong VM, Dixon AGO, Makinde KO, Bokanga M, Whyte, J. The contribution of IITA-improved cassava to food security in sub-Saharan Africa: an impact study. International Institute of Tropical Agriculture, Printed in Nigeria by IITA and Modern Design & Associates Ltd. Ibadan, Oyo State. 2000;13. ISBN 978 131 187 8.

Promar Consulting. Subsistence agriculture study. The cassava industries in mozambique and tanzania: production, processing, distribution and consumption of cassava and its related policy challenges; 2011;79-81.

Kormawa P, Akoroda MO. Cassava supply chain arrangements for Industrial Utilization in Nigeria. Ibadan: IITA; 2003.

Tewe OO. The global cassava development strategy. U.N. Food and Agriculture Organization; 2004.

Agunbaide LW. Cassava production in Nigeria- Constraints, solutions and prospect. The college review OSSCE, Illa-Oragun 2005;12:265-271.

Macalou S. Effect of NPK compound fertilizer on cassava (Manihot esculenta Crantz) yield in ultisols of Sikasso, Mali. MSc thesis submitted to the Department of Soil Science, Egerton University; 2018.

Howeler RH. In: Sustainable soil and crop management of cassava in Asia, Vietnam, CIAT Publication. 2014;57-97.

Ayologha GA, Onuegbu BA. In The land and people of Rivers State: Eastern Niger Delta, Edited by Ebiegberi JA. and Abi A.Derefaka; 2002.

Ceballos H, De la Cruz GA. Taxonomia y morphologia de la planta. In: H. Ceballos and B. Ospina (editors). La Yuca en el Tercer MilenioCIAT, Colombia. 2002;17-33.

Yomeni MO. Effects of some field practices on the yield and quality of cassava (Manihot esculenta Crantz) planting material. PhD thesis submitted to the Department of Agronomy, University of Ibadan; 2011.

Muojiama SO, Agbo CU, Eze SC, Uba CU. Agronomic evaluation of new varieties of cassava (Manihot esculenta Crantz) under Different Rates and Modes of NPK (12-12-17-2) Fertilizer Application in Two Seasons. Not. Sci. Biol. 2018;10(1):107-116. DOI: 10.15835/nsb10110190.

Cenpukdee U, Fukai S. Effects of nitrogen supply on cassava/pigeonpea intercropping with three contrasting cassava cultivars. Fertilizer Research. 1991;29:275-280.

Streck NA, Pinheiro DG, Zanon AJ, Gabriel LF, Rocha TSM, de Souza AT, da Silva MR. Effect of plant spacing on growth, development and yield of cassava in subtropical environment. Bragantia, Campinas. 2014;73:407-415.

Carsky RJ, Toukourou MA. Identification of nutrients limiting cassava yield maintenance on a sedimentary soil in southern Benin, West Africa. Nutrient Cycling in Agroecosystems. 2005;71: 151-162.