Sandra M. Guzmán

0000-0003-0735-7179

Evapotranspiration-Based Irrigation for Agriculture: Sources of Evapotranspiration Data for Irrigation Scheduling in Florida

Isaya Kisekka, Kati W. Migliaccio, Michael D. Dukes, Bruce Schaffer, Jonathan H. Crane, Kelly Morgan, Haimanote K. Bayabil, and Sandra M. Guzman

This article is part of a series on ET-based irrigation scheduling for agriculture. The rest of the series can be found at https://edis.ifas.ufl.edu/topic_series_ET-based_irrigation_scheduling_for_agriculture.

Using Psychrometric Chart for Frost Protection

Ray A. Bucklin, Dorota Z. Haman, Haimanote K Bayabil, and Sandra M Guzman

Evapotranspiration-Based Irrigation for Agriculture: Implementing Evapotranspiration-Based Irrigation Scheduling for Agriculture

Isaya Kisekka, Kati W. Migliaccio, Michael D. Dukes, Jonathan H. Crane, Bruce Schaffer, Haimanote K Bayabil, and Sandra M Guzman

Total Maximum Daily Loads and Agricultural BMPs in Florida

Kati W. Migliaccio, Kelly T. Morgan, Brian J. Boman, Sandra M. Guzman, and Haimanote Bayabil

Evapotranspiration-Based Irrigation for Agriculture: Crop Coefficients of Some Commercial Crops in Florida

Isaya Kisekka, Kati W. Migliaccio, Michael D. Dukes, Jonathan H. Crane, Bruce Schaffer, Sandra M. Guzman, and Haimanote K. Bayabil

Common Questions When Using Soil Moisture Sensors for Citrus and Other Fruit Trees

Eric Herrera, Sandra M. Guzmán, and Eduart Murcia

A UF/IFAS numbered peer reviewed Fact Sheet. Published by Farm Economics, entrepreneurship, and management

Evapotranspiration-Based Irrigation Scheduling for Agriculture

Isaya Kisekka, Kati W. Migliaccio, Michael D. Dukes, Bruce Schaffer, Jonathan H. Crane, Haimanote K. Bayabil, and Sandra M. Guzman

A UF/IFAS numbered Fact Sheet. Published by Agriculture Water

Preguntas comunes cuando se usan sensores de humedad en el suelo para cítricos y otros árboles frutales

Eric Herrera, Sandra M. Guzmán, Eduart Murcia, y Daniel Palacios

Esta guía esta orientada para personal de extensión que pueda encontrar preguntas de los productores acerca del funcionamiento y precisión de sensores de humedad del suelo (SMSs) para producción de arboles frutales. La información en este documento permitirá a los especialistas de extensión responder algunas preguntas generales acerca de los SMSs. Esta publicación se enfoca en dos tipos de sensores portátiles usados actualmente en Florida para manejo de irrigación en cítricos y otros arboles: El oscilador de línea de transmisión (TLO) y el transmisometro en el dominio del tiempo (TDT) por sus siglas en ingles. Para detalles acerca de SMSs no descritos en esta publicación o alguna marca de SMS en particular, personal de extensión puede consultar los autores o un especialista de irrigación local.

Valves in Irrigation Systems

Dorota Z. Haman, Fedro S. Zazueta, Sandra Guzman, and Haimanote Bayabil

A UF/IFAS numbered Fact Sheet.

Your Farm as a Water Storage System: Steps to Establish an Agreement with the Water Management Districts

Brandon Quinn-Ivey and Sandra M. Guzmán

This publication introduces water storage strategies known as Dispersed Water Management (DWM) and Water Farms (WF) and describes the process that a private landowner should follow to obtain a permit and begin a water storage agreement with the South Florida Water Management District (SFWMD) and the St. Johns River Water Management District (SJRWMD). Written by Brandon Quinn-Ivey and Sandra M. Guzmán, and published by the UF/IFAS Department of Agricultural and Biological Engineering, September 2022.

Irrigation Scheduling for Young Pongamia (Millettia pinnata (L.) Panigrahi) Trees

Daniel Palacios, Sandra M. Guzmán, Amir Rezazadeh, Liliana M. Cano, Lorenzo Rossi, and Alan Wright

This publication addresses the influence of irrigation scheduling on water use, plant growth, and development for young pongamia trees (Millettia pinnata (L.) Panigrahi). Written by Daniel Palacios, Sandra M. Guzmán, Amir Rezazadeh, Liliana M. Cano, Lorenzo Rossi, and Alan Wright, and published by the UF/IFAS Department of Agricultural and Biological Engineering, November 2023.

How to Identify If Your Time Series Inputs Are Adequate for AI Applications: Assessing Minimum Data Requirements in Environmental Analyses

Eduart Murcia and Sandra M. Guzmán

This publication is intended for scientists, technicians, and decision-makers who want to start using machine learning (ML) in their projects. It provides an overview of the factors that should be considered when employing ML applications with time series (TS) data as input. Written by Eduart Murcia and Sandra M. Guzmán, and published by the UF/IFAS Department of Agricultural and Biological Engineering, January 2024.

Selecting a Method for Sealing Ponds in Florida

Dorota Z. Haman, Fedro S. Zazueta, Gary A. Clark, Sandra Guzman, and Haimanote Bayabil

A UF/IFAS numbered Fact Sheet.

Cost-Share Programs for Soil Moisture Sensors and Irrigation Projects in Florida: A Guide for Agricultural Growers

Akshara Athelly, Sandra M. Guzmán, Yvette Goodiel, and Yilin Zhuang

This publication provides an overview of the soil moisture sensor-related cost-share programs available in Florida, summarizing eligibility, timelines, application steps, and relative benefits to help growers navigate available financial support efficiently. Written by Akshara Athelly, Sandra M. Guzmán, Yvette Goodiel, and Yilin Zhuang, and published by the UF/IFAS Department of Agricultural and Biological Engineering, December 2025.

Potential Impacts of Improper Irrigation System Design

Haimanote Bayabil, Sandra M. Guzman, Fedro S. Zazueta, and Dorota Z. Haman

This publication discusses a few major consequences of improper irrigation design. Written by Haimanote K. Bayabil, Sandra M. Guzman, Fedro S. Zazueta, and Dorota Z. Haman, and published by the UF/IFAS Department of Agricultural and Biological Engineering, revised August 2022.

2025–2026 Florida Citrus Production Guide: Irrigation Management of Citrus Trees

Davie M. Kadyampakeni, Kelly T. Morgan, Mongi Zekri, Arnold W. Schumann, Sandra Guzmán, Fernando Alferez, Muhammad A. Shahid, and Thomas A. Obreza

2025–2026 Florida Citrus Production Guide

Artificial Intelligence (AI) For Crop Yield Forecasting

Clyde Fraisse, Yiannis Ampatzidis, Sandra Guzmán, Wonsuk Lee, Christopher Martinez, Sanjay Shukla, Aditya Singh, and Ziwen Yu

This publication aims to introduce readers to recent crop yield forecasting approaches based on artificial intelligence (AI) and to provide examples of how AI can potentially improve yield forecasting at the field and regional levels. Written by Clyde Fraisse, Yiannis Ampatzidis, Sandra Guzmán, Wonsuk Lee, Christopher Martinez, Sanjay Shukla, Aditya Singh, and Ziwen Yu, and published by the UF/IFAS Department of Agricultural and Biological Engineering, April 2022.

Programación de riego basado en el método de evapotranspiración para papaya (Carica papaya) en Florida

Haimanote K. Bayabil, Jonathan H. Crane, Kati W. Migliaccio, Yuncong Li, Fredy Ballen y Sandra Guzmán

A UF/IFAS numbered Translation. Published by Agriculture Water

Scheduling Tips For Drip Irrigation of Vegetables

Dorota Z. Haman

Pumps for Florida Irrigation and Drainage Systems

Dorota Z. Haman

Water Wells for Florida Irrigation Systems

Dorota Z. Haman and Gary A. Clark

Microsprinkler Irrigation for Cold Protection of Florida Citrus

L. R. Parsons and B. J. Boman

Microirrigation in Mulched Bed Production Systems: Irrigation Depths

Gary A. Clark and Dorota Z. Haman

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

Settling Basins for Microsprinkler Irrigation in Florida

Dorota Z. Haman and Fedro S. Zazueta

A UF/IFAS numbered Fact Sheet. Published by Agriculture Water

Water Hammer In Irrigation Systems

G. A. Clark and D. Z. Haman

Like any other moving fluid, flowing water has momentum. When subjected to a sudden change in flow, shock waves propagate through the system. This occurrence is referred to as "water hammer." Flow changes can occur due to operation of valves, starting and stopping of pumps, or directional changes caused by pipe fittings. The intensity of water hammer e

Screen Filters in Drip Irrigation Systems

Dorota Z. Haman and Fedro S. Zazueta

A UF/IFAS numbered Fact Sheet. Published by Agriculture Water

Media Filters For Trickle Irrigation In Florida

Dorota Z. Haman and Fedro S. Zazueta

A UF/IFAS numbered Fact Sheet.

Measuring Pump Capacity for Irrigation System Design

D. Z. Haman and F. S. Zazueta

A UF/IFAS numbered Fact Sheet. Published by Urban Water

Evapotranspiration: Potential or Reference?

Suat Irmak and Dorota Z. Haman

A UF/IFAS numbered Fact Sheet.

Injection of Chemicals Into Irrigation Systems: Rates, Volumes, and Injection Periods

G. A. Clark, D. Z. Haman and F. S. Zazueta

A UF/IFAS numbered Fact Sheet.

Fertilizer Application Best Management Practices for Citrus Grove Workers

Brain Boman, Darren Cole, Steve Futch, Ward Gunter, Chris Wilson, and J. W. Hebb

A UF/IFAS numbered Fact Sheet.

Chemical Injection Methods for Irrigation

Dorota Z. Haman and Fedro S. Zazueta

A UF/IFAS numbered Fact Sheet.

Causes and Prevention of Emitter Plugging In Microirrigation Systems

Dorota Z. Haman

The plugging of emitters is one of the most serious problems associated with microirrigation use. Emitter plugging can severely hamper water application uniformity.