Tunnels to Tables

Interest in incorporating high-tunnel production into farming operations is growing rapidly. Participants in recent ISU high tunnel workshops clearly indicated that high tunnel technology offered them a realistic alternative for adding income to existing farm operations or could serve as an affordable enterprise for new/beginning farmers. In order to maximize these opportunities, it was important to provide producers with information that helps identify the crops that offer the most potential for profitable returns. Matching processing and packaging infrastructure needs associated with high tunnel production also was identified as a critical concern by these producers.

High tunnel research production projects and workshops were conducted at two locations in Iowa (ISU Horticulture Research Farm and the Armstrong Research Farm). Both locations grew and monitored the production of brambles (any of a genus Rubus, usually prickly shrubs of the rose family including the raspberries and blackberries), tomatoes and bell peppers to establish production budgets and methodology used to maximize production. Processing and handling business models are being developed using USDA feasibility guidelines.

Crops with high potential for profitability in a high-tunnel facility were identified with the focus in year one on tomatoes, green peppers and brambles. Production records were monitored and an Integrated Pest Management (IPM) Scouting Guide was developed. Producer input at the workshops helped identify the business strategies for light processing and accumulation that will be evaluated according to USDA-RD feasibility guidelines. Production data and testing continue to need refinement. Using the production parameters from year one, significant work can now begin to determine infrastructure needs and appropriate business model scenarios for accumulation and light processing facilities.

Contact:
Raymond Hansen
ISU Extension Value Added Agriculture Program
1111 NSRIC Bldg
Iowa State University
Ames, IA 50011
hansenr@iastate.edu
515-294-3890