Mark Warren

An Extensionist’s Guide to Farm and Site Visits

Marcelo Wallau, Bob Hochmuth, Tatiana Sanchez-Jones, Mark Warren, Carissa Wickens, Prissy Fletcher, and Cheryl Mackowiak

Farm and site visits are a major component of Extension work, whether as a county faculty or state specialist. They serve various purposes, such as informal check-ins, relationship building, problem solving, sharing technology, and information collection. While time-consuming, farm visits are often the most effective method for addressing problems and developing deeper connections with stakeholders (Petrzelka, Padgitt, and Windestenn, 1999). These visits provide firsthand knowledge of the issues clients face and are effective in establishing collaborations, assessing needs, understanding agricultural production systems, and validating research applications (Oakley and Garforth, 1985; Seevers and Graham, 2012). This publication explores different facets of farm and site visits, including preparation before the visit, the investigative (problem-solving) process during the visit, and post-visit procedures. Additional resources are included to support client visits and troubleshooting.

Winter Feed Estimator: A Practical Tool for the Beef Cow-Calf Producer

Mark Warren, Ed Jennings, and Matt Hersom

Converting the Beef Cow Herd to a Controlled Breeding Season

Mario Binelli, Thiago Martins, Tim Wilson, C. Sanders, Mark Warren, Matt Hersom, Matthew J. Hersom, yCurt Lacy

This report aims to provide guidance to producers on practical aspects for moving from a system with no defined breeding season to a system with a defined season. Written by Mario Binelli, Thiago Martins, Tim Wilson, Cindy Sanders, Mark Warren, Matt Hersom, and Curt Lacy, and published by the UF/IFAS Department of Animal Sciences, revised January 2023.

Converting from sSeepage Irrigation to Plasticulture for Vegetable Production: A Case Study

Charles Barrett, Charles Barrett, Lincoln Zotarelli, Mark Warren, yLucas G. Paranhos

Use of Controlled-Release Nitrogen in Snapbean Production in the Suwannee Valley

Taite Miller, Taite Miller, Robert Hochmuth, Rajkaranbir Singh, Lakesh Sharma, Henry T. Pittman, yMark Warren

Snapbean production in the Suwannee Valley occurs on sandy soils that are highly vulnerable to nitrogen leaching, making efficient fertilizer management essential for both crop performance and environmental protection. Controlled-release fertilizers (CRFs) offer a potential strategy to improve nitrogen delivery by synchronizing nutrient releases with crop demand while reducing losses to groundwater.

Use of Controlled-Release Nitrogen in Watermelon Production in the Suwannee Valley

Taite Miller, Taite Miller, Robert Hochmuth, Sydney Williams, Vivek Sharma, Mark Warren, Henry T. Pittman, Tatiana Sanchez, yEmily Beach

Efficient nitrogen management in watermelon production is critical for maintaining yields while minimizing environmental losses, particularly in the sandy soils of north Florida. Field and on-farm trials conducted by UF/IFAS in the Suwannee Valley evaluated controlled-release fertilizers as an alternative to conventional nitrogen sources.

Controlled-Release Fertilizers for Commercial Potato Production in Florida

Guodong Liu, Eric H. Simonne, Yuncong Li, Chad M. Hutchinson, Mark Warren, and Steven Lands

A UF/IFAS numbered Fact Sheet for Commercial audience(s).

UF/IFAS Nutrient Management Recommendation Series: Watermelon

Thomas Obreza, Robert Hochmuth, Mark Warren, Tatiana Sanchez, Craig Frey, Thomas A. Obreza, yRao Mylavarapu
Otros contactos: Paul White

Nutrient management recommendations for watermelon are described according to the standard UF/IFAS recommendation format of 1) a calibrated soil test result; 2) target soil pH; 3) the "4Rs" of fertilizer management: rate, timing, placement, and source; and 4) water management factors.