Acta Scientific Agriculture (ASAG)(ISSN: 2581-365X)

Research Article Volume 7 Issue 9

Effect of Time of Application and Application Rate of Spent Oil on Maize Growth

Nwachukwu CP*, Okoro AC, Ekpo AE and Obidiwe JI

Department of Agricultural and Bio-resources Engineering, Nnamdi Azikiwe University, Awka, Nigeria

*Corresponding Author: Nwachukwu CP, Department of Agricultural and Bio-resources Engineering, Nnamdi Azikiwe University, Awka, Nigeria.

Received: November 05, 2022; Published: August 23, 2023


In this study, the effect of different application rates of spent oil (10ml and 20ml) and different application times; 1 week after planting (1WAP), 3 weeks after planting (3WAP) and 5 weeks after planting (5WAP) were investigated on growth and yield components of maize (zea mays). Maize plants were grown and exposed to spent oil at different stages of growth and different application rates, while some plants were not exposed to spent oil, and this group served as control treatment. It was observed that plants exposed to spent oil at 1WAP and 20ml spent oil stopped growing after application of spent oil. The application of 10ml spent oil at 5WAP produced highest values of yield components (maize weight, plant dry weight and leaf length and width) when compared to other treatments. Plants in the control had greater yield than those exposed to spent oil. The growth and performance of the crops at various applications of spent oil and time of application were statistically significant (p < 0.05), apart from leaf length at 3WAP (10mls application rate) and 5WAP (10ml application rate), which were statistically not significant (p > 0.05). The results obtained from this study shows that increase in application of spent oil to maize farm, especially at early stage affects growth and yield components of maize, and this leads to poor yield.

Keywords:Spent Oil; Application Rate; Time of Application; Week After Planting


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Citation: Nwachukwu CP., et al. “Effect of Time of Application and Application Rate of Spent Oil on Maize Growth". Acta Scientific Agriculture 7.9 (2023): 62-65.


Copyright: © 2023 Nwachukwu CP., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


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