Delahaut, K.A., A.C. Newenhouse. 2003. Growing Onions, Garlic, Leeks, and Other Alliums in Wisconsin: A Guide for Fresh-market Growers. University of Wisconsin Cooperative Extension. Accessed at: <http://learningstore.uwex.edu/Assets/pdfs/A3785.pdf>
Growing Onions, Garlic, Leeks and Other Alliums in Wisconsin: A Guide for Fresh-market Growers was produced by the University of Wisconsin Extension and written by A.C. Newenhouse, current Senior Scientist in the College of Agricultural and Life Sciences, and Karen Delahaut, who was a horticulture outreach specialist for the Integrated Pest Management program. Onions, garlic, leeks, chives, shallots, and other members of the onion family are commonly grown in fresh market gardens. Specifically this publication goes over plant description, site and cultivar selection, planting, soil, nutrient and pest management, irrigation, and postharvest management for the above crops. Additional resources are provided at the end.