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Various nitrate and potassium "quick-test" kits for vegetable plant sap-testing have been calibrated for use on Florida vegetables. The objective has been to find a system that growers can use in the field to help manage nitrogen (N) and potassium (K) fertilizer—especially for drip-irrigated vegetables. The following guidelines should help individuals who are currently using—or are interested in using—sap-testing. Revision by George and Robert Hochmuth published by the UF/IFAS Horticultural Sciences Department; 6 pages.https://edis.ifas.ufl.edu/cv004

Worldwide, commercial greenhouse vegetable producers currently use numerous production systems. Among the more prevalent include lay-flat bag or upright container culture, trough culture, rockwool, vertical culture, nutrient film technique (NFT), and ground (in-soil) culture. Many modifications of these basic production systems are presently in use, and most are appropriate for Florida, except for unamended ground culture. This revised 8-page fact sheet was written by Dan Fenneman, Michael Sweat, George Hochmuth, and Robert Hochmuth, and published by the UF Department of Horticultural Sciences, October 2012. HS785/CV263: Production Systems—Florida Greenhouse Vegetable Production Handbook, Vol 3 (ufl.edu)

In 2012, it was estimated that 500 acres or more of all edible crops were being grown in some type of protected culture in Florida. This revised 13-page fact sheet discusses some of the alternative or specialty crops being grown and marketed. Written by R. Hochmuth and D. Cantliffe, and published by the UF Department of Horticultural Sciences, October 2012. HS791/CV272: Alternative Greenhouse Crops—Florida Greenhouse Vegetable Production Handbook, Vol 3 (ufl.edu)

More and more farmers are growing small crops of fruits and vegetables for specialty local markets. They commonly grow several crops at different stages of development at the same time, so they have a variety of produce to sell to customers. This forces farmers to make several fertilizer calculations because of their diverse crop demands, because water and nutrient requirements vary according to the crop and stage of development. This 7-page fact sheet helps growers correctly interpret fertilizer recommendations and calculate accurate fertilizer amounts to be used based on crop nutrient requirements. Written by Jim DeValerio, David Nistler, Robert Hochmuth, and Eric Simonne, and published by the UF Department of Horticultural Sciences, October 2012. HS1206/HS1206: Fertigation for Vegetables: A Practical Guide for Small Fields (ufl.edu)

HS1164, a 3-page illustrated fact sheet by Danielle D. Treadwell, Robert Hochmuth, Linda Landrum, and Wanda Laughlin, provides an overview of this new type of market crop and its production. Includes references. Published by the UF Department of Horticultural Sciences, April 2010. HS1164/HS1164: Microgreens: A New Specialty Crop (ufl.edu) A minor revision of this article was published September 2020, here: https://journals.flvc.org/edis/article/view/123356

HS405, an 8-page illustrated fact sheet by Richard Tyson, Robert Hochmuth, and Daniel J. Cantliffe, provides an overview of hydroponic vegetable production in Florida — history, marketing considerations, growing systems, seasonal limitations, and economic considerations. Includes references. Published by the UF Department of Horticultural Sciences, November 2009. HS405/HS405: Hydroponic Vegetable Production in Florida (ufl.edu)

SL-293, a 9-page illustrated fact sheet by George Hochmuth, Robert Hochmuth, and Rao Mylavarapu, answers vegetable producers’ questions about what poultry manure and litter are, what plant nutrients they contain, considerations for using them, results of research in Florida, how to use it in a mulched-bed system, and how to collect and submit for testing poultry manure samples. Includes references. Published by the UF Department of Soil and Water Science, October 2009. SL 293/SS506: Using Composted Poultry Manure (Litter) in Mulched Vegetable Production (ufl.edu)

HS-1144, a 28-page illustrated fact sheet by Eric Simonne, Robert Hochmuth, Jacque Breman, William Lamont, Danielle Treadwell, and Aparna Gazula, presents the principles behind drip irrigation and some practical guidelines for successful and profitable use of drip irrigation for vegetable production in Florida. Includes references. Published by the UF Department of Horticultural Sciences, June 2008. HS1144/HS388: Drip-Irrigation Systems for Small Conventional Vegetable Farms and Organic Vegetable Farms (ufl.edu)