Sugar Beet Research and Education Board of Minnesota and North Dakota - Detailed information for growing sugar beet. Features a downloadable production guide and a searchable research archive with full text.

International Potato Center (CIP) - Information about the center and its roles in promoting potatoes, sweet potatoes and other Andean root crops, and in protecting Andean biodiversity.

Manrique International Agrotech (MIAT) - Consulting company specialized in tropical agriculture. Publishes books on potato, cassava, sweet potato, taro and other tropical crops. Web site has glossary of agronomic terms and fact sheets on potato, cassava, sweet potato, and taro.

Potato and onion storage - Agricultural refrigeration and ventilation equipment for potato and onion storage. Personally designed using skid units, Cropscan temperature controls, motorised louvres, mixer boxes, fans etc.