- Elephant Foot Yam
- Includes details on its commercial cultivation, photo album, and sources for healthy seeds.
- Farm Electronics
- Specializes in the design and manufacture of complete potato storage, onion storage and vegetable storage systems, electronic control systems and automated controls for agriculture and industry.
- Manrique International Agrotech
- Publishes books on soil management and conservation, potato, cassava, sweetpotato, taro, and other tropical crops. Offered technical services and training include soil management, tropical agronomy, crop production, land assessment, and urban agriculture.
- Roots and Tubers and Derived Products
- Information on potatoes, sweet potatoes, cassava, yautia, taro, and yams.
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