CHAPTER ONE

1.1 Background of the Study

Agriculture continues to play a vital role in Nigeria’s economy because it provides food, employment, and raw materials for industry. The sector contributes significantly to the nation’s Gross Domestic Product (GDP) and remains the major source of livelihood for most rural households (National Bureau of Statistics [NBS], 2023). Despite these contributions, food insecurity persists in Nigeria. One major factor responsible for this problem is the high rate of post-harvest losses across the agricultural value chain.

Post-harvest losses refer to the reduction in the quantity or quality of agricultural produce between harvest and consumption. These losses may occur during handling, storage, processing, transportation, and marketing. According to the Food and Agriculture Organization (FAO, 2022), developing countries lose between 20% and 40% of total agricultural output after harvest. In Nigeria, the situation is even more severe because of poor infrastructure, inadequate storage facilities, and inefficient supply chains.

Moreover, post-harvest losses affect not only farmers but also consumers and the economy as a whole. When a large portion of crops spoil before reaching the market, food availability declines while prices rise. Consequently, many households face food shortages and reduced nutritional intake. Furthermore, the income of farmers declines because they earn less from the produce they sell. As a result, agricultural growth slows down, and food insecurity deepens (Adebayo, 2021).

In Nigeria, the problem is particularly evident in perishable commodities such as fruits, vegetables, maize, rice, and tubers. Many of these crops deteriorate quickly because they are often harvested using crude methods and transported under poor conditions. In addition, most smallholder farmers lack access to cold storage facilities and processing centers that could extend the shelf life of their produce (Eze & Okonkwo, 2020). Therefore, a significant portion of farm output never reaches consumers, leading to wastage and economic loss.

Furthermore, climate change has intensified the problem by exposing harvested crops to higher temperatures and unpredictable weather. Consequently, post-harvest management has become a key area of concern for food security strategies. If Nigeria can effectively reduce post-harvest losses, food availability would increase significantly without expanding farmland or production inputs. This would contribute to achieving the Sustainable Development Goal (SDG) of ending hunger and promoting sustainable agriculture (United Nations, 2023).

Despite several government programs aimed at improving food security, such as the National Food Security Programme and the Agricultural Transformation Agenda, post-harvest losses remain alarmingly high. Therefore, it is essential to examine how these losses affect food security in Nigeria and to identify practical strategies for minimizing them.

1.2 Statement of the Problem

Food insecurity remains a serious challenge in Nigeria, even though the country possesses abundant natural and human resources. One major reason for this situation is the large amount of food lost after harvest. Studies have shown that millions of tons of food are wasted annually due to inadequate preservation, poor handling, and inefficient storage systems (FAO, 2022). Moreover, the losses reduce the supply of staple foods, raise prices, and diminish farmers’ income.

Consequently, many Nigerians cannot afford sufficient nutritious food, leading to hunger and malnutrition. Although various efforts have been made to enhance production, less attention has been given to post-harvest management. Therefore, this study investigates how post-harvest losses influence food security in Nigeria, particularly in terms of food availability, accessibility, and affordability.

1.3 Objectives of the Study

The main objective of this study is to examine the effect of post-harvest losses on food security in Nigeria. Specifically, the study aims to:

1. Identify the major causes of post-harvest losses among Nigerian farmers.

2. Examine the relationship between post-harvest losses and food availability.

3. Determine the impact of post-harvest losses on farmers’ income and food accessibility.

4. Assess the role of government policies in mitigating post-harvest losses.

5. Recommend strategies for reducing post-harvest losses to enhance food security.

1.4 Research Questions

1. What are the major causes of post-harvest losses among farmers in Nigeria?

2. How do post-harvest losses affect food availability and accessibility?

3. In what ways do post-harvest losses influence farmers’ income and livelihood?

4. What government policies exist to address post-harvest losses?

5. What strategies can effectively reduce post-harvest losses and improve food security?

1.5 Hypotheses

• H₀: Post-harvest losses have no significant effect on food security in Nigeria.

• H₁: Post-harvest losses have a significant effect on food security in Nigeria.

1.6 Significance of the Study

This study is significant because it highlights one of the most overlooked aspects of Nigeria’s food system. By focusing on post-harvest losses, it provides insights into how much food and income are wasted annually due to poor handling and storage. Furthermore, the research offers valuable information to policymakers on how to improve post-harvest management and strengthen the food supply chain.

In addition, the findings will benefit farmers by emphasizing the importance of adopting improved preservation and storage methods. Moreover, it will guide development partners, agricultural agencies, and investors in designing projects that promote efficient food handling and reduce waste. Ultimately, reducing post-harvest losses will not only boost farmers’ income but also make food more affordable for Nigerian households.

Academically, this research will contribute to existing knowledge on food security and agricultural sustainability. Therefore, it serves as a useful reference for students, researchers, and policymakers seeking to understand the connection between post-harvest management and food security in developing economies.

1.7 Scope of the Study

The study focuses on smallholder farmers in selected agricultural regions of Nigeria, including Benue, Kano, Kaduna, and Ogun States. These areas were chosen because they represent different agro-ecological zones and produce a wide range of crops. The period covered spans from 2010 to 2024, during which the government implemented several programs to reduce post-harvest losses. The study examines both physical and economic losses and their implications for food security.

1.8 Definition of Terms

Post-Harvest Losses: The measurable reduction in quantity or quality of food between harvest and consumption.
Food Security: A situation in which all people have physical and economic access to sufficient, safe, and nutritious food at all times.
>Food Availability: The total amount of food that is produced and made accessible in a given area.
>Food Accessibility: The ability of individuals and households to obtain food either through purchase or production.
Storage Facilities: Infrastructure used to preserve agricultural produce and prevent deterioration after harvest.

References

Adebayo, K. (2021). Post-Harvest Management and Agricultural Sustainability in Sub-Saharan Africa. Ibadan: University Press.
Eze, C. C., & Okonkwo, U. (2020). Reducing Food Waste Through Improved Storage Systems in Nigeria. Nsukka: University of Nigeria Press.
Food and Agriculture Organization (FAO). (2022). Global Report on Food Loss and Waste Reduction. Rome: FAO.
National Bureau of Statistics (NBS). (2023). Agriculture and Food Security Report. Abuja: NBS.
United Nations. (2023). Sustainable Development Goals Progress Report. New York: UN Publications.