The cost of inadequate postharvest management of pulse grain: Farmer losses due to handling and storage practices in Uganda

Abstract

Abstract Background Investing in postharvest technologies is one way of reducing food losses with the aim of achieving food security, but it is often overlooked. In this study, we assessed the losses and costs associated with the harvest and postharvest practices used by smallholder bean farmers in Uganda. We also estimated the grain Moisture Content (MC) associated with traditional storage practices. Results Harvest and postharvest handling practices result in a loss of about 22% of the crop harvest. The cost associated with this loss is 17% of the output value. In addition, the common storage practices used by farmers are unable to maintain the required grain MC of ≤ 13%. As even a slight change in grain MC can significantly impact storage duration, we found that 74% of farmers fail to meet the required MC, resulting in a loss of anticipated price premiums over an average storage duration of 80 days. Our econometric estimates suggest that storing grain in bags placed above the floor surface could reduce MC by an additional 1.5%. Conclusions Our predictions indicate that farmers who use traditional practices should store bean grains for less than 60 days, or they should adopt better storage practices to increase shelf life and ensure food safety. If more farmers had placed their grain above the floor surface, 48% rather than 26% would have met the required MC at 90 days. It is worth noting that poor postharvest handling has significant economic implications and can lead to food safety concerns due to quality failures in the grain. To address these issues, there is a need to scale up interventions that increase farmer access to postharvest technologies.

Keywords

• Postharvest losses
• Dry bean
• Moisture content
• Grain storage