Response of Cassava (Manihot esculenta Crantz) to Different Soil Amendments in Rainforest Ecology of Southern Nigeria

Ikopima Uwemedimo Thomas; Ofonime Raphael Akata; Patrick Ibanga Udounang; Fidel Ekanikpong Ben

doi:10.70110/osse.v3i2.49

Authors

Ikopima Uwemedimo Thomas Department of Crop Science, Faculty of Agriculture, Akwa Ibom State University, Obio Akpa Campus, Akwa Ibom State, Nigeria
Ofonime Raphael Akata Department of Crop Science, Faculty of Agriculture, Akwa Ibom State University, Obio Akpa Campus, Akwa Ibom State, Nigeria
Patrick Ibanga Udounang Department of Crop Science, Faculty of Agriculture, Akwa Ibom State University, Obio Akpa Campus, Akwa Ibom State, Nigeria
Fidel Ekanikpong Ben Department of Crop Science, Faculty of Agriculture, Akwa Ibom State University, Obio Akpa Campus, Akwa Ibom State, Nigeria

DOI:

https://doi.org/10.70110/osse.v3i2.49

Keywords:

Cassava, Fertilization, Poultry manure, Soil amendment

Abstract

Background: In Nigeria, cassava is considered one of the primary crops for ensuring food security, however the soil fertility be one of major problem.
Aims: The experiment aimed to evaluate the effect fertilization on growth and yield of cassava.
Methods: The field experiment was conducted at Akwa Ibom State University, Teaching and Research, Obio Akpa Campus. The experiment was laid out in randomized complete block design, replicated three times. Growth and yield data were collected. All growth and yield data collected were subjected to analysis of variance. Significant means were tested with LSD at 5% probability level.
Result: Among the fertilizer treatments, the treatment of 5t/h PM produced significant storage root yield of 32.18 and 31.16t/ha. Application of 5t/ha of EFBA produced 25.17 and 25.23t/ha of storage root yield in 2024 and 2025 cropping seasons, respectively. The treatment of 400kg/ha of NPK 15:15:15 fertilizer produced 27.24 and 28.80 t/ha storage root yield. The result showed that the treatment of poultry manure produced 15-43% and 9-47% higher storage root yield compared to the other treatments in both cropping seasons. PM treatment generated the highest economic returns across both cropping seasons, yielding N 4,020,700 and N 4,119,000 for the 2024 and 2025 seasons, respectively. The cost-benefit ratio for the PM treatment was recorded at 3.12 and 3.09, while the CD treatment had benefit ratios of 2.54 and 2.83.
Conclusion: For high yield and economic returns to management. The study therefore recommended the application of poultry manure, followed by Cow Dung (CD) and oil palm empty fruit bunch ash (EFBA).

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