Postharvest losses in African agriculture are often estimated at about 30-40 percent. The Horticulture Innovation Lab’s latest project in Rwanda set out to reduce postharvest losses in horticulture last year. Our first step was to conduct in-depth field work to understand the main causes and stages at which postharvest losses occurred in our four focus crops — tomatoes, green chilies, green bananas and orange fleshed sweet potatoes. We set out to understand the issues from three perspectives: Continue reading 6 lessons from postharvest loss assessments in Rwanda
Leaning into her tuktuk in Siem Reap, Eang Chakriya opens a cooler and takes out fresh wax gourds and other vegetables that have been carefully packed and chilled, showing them to a group of neighbors. Emblazoned on the tuktuk (a kind of motorized rickshaw) are images of farmers and the marketing motto, “Grown Right, Handled Right, Community Right.”
Chakriya sells nutritious vegetables directly to consumers in Cambodia as part of a farmers’ cooperative working with the Feed the Future Innovation Lab for Horticulture, led by the University of California, Davis.
The project’s research team is examining incentives that help farmers improve their agriculture practices. The researchers’ hunch is that farmers will adopt conservation agriculture practices (or “Grown Right” practices) if the team also helps them to adopt two other types of profitable practices that will increase their success: improved postharvest handling techniques and novel marketing practices.
Elizabeth Mitcham, director of the Feed the Future Innovation Lab for Horticulture and a UC Cooperative Extension specialist in postharvest biology for the UC Davis Department of Plant Sciences, represented the DryCard during the competition.
How do you see dryness? Solar drying is a simple way for smallholder farmers to preserve their harvest, but knowing when food is dry enough to store is complex. UC Davis researchers invented a low-cost, easy-to-use tool that farmers can use to measure food dryness, called the DryCardTM.
In developing countries, mold growth on dried foods is a pervasive problem, which can mean postharvest losses for farmers and unsafe foods for consumers. When mold grows it reduces the market value of dried foods, meaning less income for farmers. But moldy foods can also contain toxins that suppress the immune system, increase disease rates, and cause lifelong stunting in children.
Trip to market inspires a solution
Improving the postharvest drying process for smallholder farmers is something UC Davis scientists Michael Reid and James Thompson think about often. As UC Cooperative Extension specialists, Reid and Thompson have a history of working together in California and around the world on postharvest technologies, including a design for a more efficient solar dryer.
Last summer Reid led a Horticulture Innovation Lab workshop in Tanzania to provide training in postharvest handling of fruit and vegetable crops. The class visited the local market and tested the moisture content of some of the dried foods for sale. They found huge variation between the moisture contents of dried foods — over half were insufficiently dried and susceptible to mold.
“Reducing food losses and waste: Sustainable solutions for Africa” is the theme of the first All Africa Post Harvest Congress and Exhibition. The conference will be March 28-31 in Nairobi, Kenya.
The event will address aspects of postharvest management related to perishable crops, perishable animal products, non-perishable food commodities, capacity development, and related social issues that affect postharvest management.
Registration to attend the conference is $400, or $350 at early-bird rates before Feb. 28. A student rate is also available ($150 or $100 early). An optional excursion trip scheduled for March 28 is available for an additional $50.
The event is supported by a consortium of universities, research and development organizations — including the Horticulture Innovation Lab as one of its sponsors. In particular, the congress was organized by the Kenya Ministry of Agriculture, Livestock and Fisheries, in conjunction with the World Food Preservation Center, hosted by the University of Nairobi, with strategic partnership from the Rockefeller Foundation. Continue reading Event: First All-Africa Postharvest Congress