Rao Mylavarapu

0000-0003-3447-1727

Using Composted Poultry Manure (Litter) in Mulched Vegetable Production

George Hochmuth, Robert Hochmuth, and Rao Mylavarapu

An Introduction to Biochars and Their Uses in Agriculture

Rao Mylavarapu, Vimala Nair, and Kelly Morgan

Lowering Soil pH to Optimize Nutrient Management and Crop Production

Rao Mylavarapu, George Hochmuth, Cheryl Mackowiak, Alan Wright, and Maria Silveira

UF/IFAS Nutrient Management Series: Soil Sampling Strategies for Precision Agriculture

Rao S. Mylavarapu and Won Suk Daniel Lee

Field Symptoms of Boron Toxicity and Deficiency in Florida Peanuts

Rao S. Mylavarapu, Jacque. W. Breman, William D. Thomas, and Henry E. Jowers

Soil Sampling and Testing for the Home Landscape or Vegetable Garden

Amy L. Shober and Rao Mylavarapu

Agricultural Soils of Florida

Rao Mylavarapu, Willie Harris, and George Hochmuth

Soil pH and Electrical Conductivity: A County Extension Soil Laboratory Manual

Rao Mylavarapu, Jamin Bergeron, and Nancy Wilkinson

Developing a Soil Test Extractant: The Correlation and Calibration Processes

George Hochmuth, Rao Mylavarapu, and Ed Hanlon

Soil-Test-Based Phosphorus Recommendations for Commercial Agricultural Production in Florida

Rao Mylavarapu, Yuncong Li, Maria Silveira, Cheryl Mackowiak, and Mabry McCray

Diagnostic Nutrient Testing for Commercial Citrus in Florida

Rao Mylavarapu, Kelley Hines and Thomas Obreza

Sugarcane Nutrient Management Using Leaf Analysis

J. Mabry McCray and Rao Mylavarapu

Irrigation and Household Water Test and Interpretation

Rao Mylavarapu

Development of Bahiagrass Fertilization Recommendations: 1990–2008

Rao Mylavarapu, E. A. Hanlon, C. L. Mackowiak, and M. L. Silveira

Watersheds of Florida: Understanding a Watershed Approach to Water Management

Rao Mylavarapu, Thomas Obreza, and Greg Means

Soil pH and the Home Landscape or Garden

Amy L. Shober, Christine Wiese, Geoffrey C. Denny, and Rao Mylavarapu

Guide to Olive Tree Nutrition in Florida

Michael J. Mulvaney, Rao Mylavarapu, Peter C. Andersen, Mack Thetford, and Jennifer L. Gillett-Kaufman

Extraction of Soil Nutrients Using Mehlich-3 Reagent for Acid-Mineral Soils of Florida

Rao Mylavarapu, Tom Obreza, Kelly Morgan, George Hochmuth, Vimala Nair, and Alan Wright

Impact of Phosphorus on Water Quality

Rao Mylavarapu

Livestock Waste Testing Form

Rao S. Mylavarapu, William d'Angelo, and Nancy Wilkinson

Soil Testing for Plant-Available Nutrients—What Is It and Why Do We Use It?

George Hochmuth, Rao Mylavarapu, and Ed Hanlon

Hemp Fertilization: Current Knowledge, Gaps and Efforts in Florida: A 2020 Report

Rao Mylavarapu, Zachary Brym, Luis Monserrate, and Michael J. Mulvaney

Cost Share Programs for Florida's Agricultural Producers and Landowners

Rao Mylavarapu, Kelley Hines, and Tatiana Borisova

UF/IFAS Extension Nutrient Management Series: Container Media Nutrient Test Interpretation

Rao Mylavarapu and Tom Yeager

UF/IFAS Nutrient Management Series: UF/IFAS Standardized Nutrient Recommendation Development Process

Rao S. Mylavarapu

Fertilizer Recommendation Philosophies

George Hochmuth, Rao Mylavarapu, and Ed Hanlon

Phosphorus Index Test Form

Rao S. Mylavarapu, William d'Angelo, and Nancy Wilkinson

This document is the Phosphorus Index Test Form (SL394), one of the Soil Testing Information Sheets (Submission Forms) used by the UF/IFAS Extension Soil Testing Laboratory. The sheet provides details about how to collect samples and testing fees. 

Nutrient Management Recommendations Based on Mehlich-3 Extractant for Calcareous Soils in Miami-Dade County

Yuncong Li, Qiang Zhu, Rao Mylavarapu, Kelly Morgan, Guodong Liu, Jonathan Crane, Qingren Wang, Henry Mayer, Jeff Wasielewski, Laura Vasquez, Qingchun Liu, and Teresa Olczyk

This factsheet provides information about the history of soil testing calibrations and justification for recommending extraction of soil nutrients using Mehlich-3 for calcareous soils in Miami-Dade County. The dominant soils from this County have an extraordinarily high concentration of calcium resulting in high pH. This document also includes UF/IFAS approved Mehlich-3 extractant-based testing interpretations and recommendations for these soils. The purpose of this publication is to elucidate an appropriate approach for analyzing the unique calcareous soils from Miami-Dade County for plant available nutrients. The target audiences are Extension agents, agronomists at soil testing laboratories, crop advisors, growers, representatives of the state and local agencies, and others concerned about soil testing and plant analysis in Miami-Dade County.

Producer Citrus Test Form

Rao S. Mylavarapu, William d'Angelo, and Nancy Wilkinson

This document is the Producer Citrus Test Form (SL396), one of the Soil Testing Information Sheets (Submission Forms) used by the UF/IFAS Extension Soil Testing Laboratory. The sheet provides details about how to collect samples and testing fees. 

Plant Tissue Test Form

Rao S. Mylavarapu, William d'Angelo, and Nancy Wilkinson

This document is the Plant Tissue Test Form (SL131) used by the UF/IFAS Extension Soil Testing Laboratory. The sheet provides details about how to collect samples and testing fees.

Landscape and Vegetable Garden Test Form

Rao S. Mylavarapu, William d'Angelo, and Nancy Wilkinson

This document is the Landscape and Vegetable Garden Test Form (SL136), one of the Soil Testing Information Sheets (Submission Forms) used by the UF/IFAS Extension Soil Testing Laboratory. The sheet provides details about how to collect samples and testing fees. 

Nutrient Management in Low-Chill Peach Orchards: Guidelines for Deficiency Symptoms and Leaf and Soil Sampling

Jonathan Clavijo-Herrera, Ali Sarkhosh, Lincoln Zotarelli, Cheryl Mackowiak, and Rao S. Mylavarapu

Timely and informed fertilization practices in peach production are essential to obtain high yields, optimal fruit quality, and secure long-term orchard health and productivity. Recognizing nutrient deficiency symptoms can help identify which nutrients a plant may be lacking, but a solid nutrient management program should regularly test soil and foliar samples to detect issues before symptoms appear. This publication provides suggested nutrient sufficiency ranges for peach trees, along with practical guidelines for identifying nutrient deficiency symptoms and conducting soil and foliar sampling in the orchard. Its goal is to support county Extension agents and faculty, growers, and homeowners with general and practical guidelines for optimizing nutrient management in peach orchards.

Nutrient Management in Low-Chill Peach Orchards: Guidelines for Fertilizer Rate Application in Florida Subtropical Climate

Jonathan Clavijo-Herrera, Ali Sarkhosh, Lincoln Zotarelli, Cheryl Mackowiak, and Rao S. Mylavarapu

Appropriate fertilization of perennial fruit tree species is critical to ensure vegetative and reproductive growth, as these processes demand considerable amounts of resources. Adequate fertilization management practices at all stages of peach development are essential to obtain high yields and optimal fruit quality, as well as to ensure healthy vegetative growth that supports the crop for the following year. Fertilization practices are also important economically since they represent an important portion of the costs associated with peach production. Improper fertilization can have negative agronomic and environmental consequences. This publication discusses and suggests general fertilization management practices for peach trees growing under the subtropical climate of Florida to provide information to county and state Extension faculty, growers, and homeowners interested in peach production in Florida.

Chapter 2. Fertilizer Management for Vegetable Production in Florida

Guodong Liu, Eric H. Simonne, Kelly T. Morgan, George Hochmuth, Shinsuke Agehara, Rao Mylavarapu, Craig Frey, Pavlos Tsouvaltzis, and Xiaoying Li

Chapter 2 of the Vegetable Production Handbook of Florida

The Four Rs of Fertilizer Management

George Hochmuth, Rao Mylavarapu, and Ed Hanlon

A UF/IFAS numbered Fact Sheet. in support of UF/IFAS Extension program: Integrated Pest Management

Nutrient Testing Form for Bahia Pastures

Rao S. Mylavarapu, William d'Angelo, and Nancy Wilkinson

This document is the Nutrient Testing Form (SL395), one of the Soil Testing Information Sheets (Submission Forms) used by the UF/IFAS Extension Soil Testing Laboratory. The sheet provides details about how to collect samples and testing fees. 

Urban Fertilizer Ordinances in the Context of Environmental Horticulture and Water Quality Extension Programs: Frequently Asked Questions

Michael D. Dukes, Lisa Krimsky, Mary Lusk, Laurie Trenholm, Bryan Unruh, Michelle Atkinson, Rao Mylavarapu, and Bernard Cardenas

The purpose of this document is to provide background information to all stakeholders—including scientists, legislators, local governments, landscape managers, Extension agents, Master Gardener Volunteers, homeowners, and the general public—on the underlying issues of fertilizer use, with an emphasis on an urban setting, and to outline the current state of the science on urban fertilizers and water quality in Florida. This information is presented in response to 12 frequently asked questions (FAQs) that also include discussion of several technological and regulatory solutions that have been adopted around the state. Written by Michael D. Dukes, Lisa Krimsky, Mary Lusk, Laurie Trenholm, Bryan Unruh, Michelle Atkinson, Rao Mylavarapu, and Bernard Cardenas, and published by the UF/IFAS Department of Agricultural and Biological Engineering, revised August 2024.

UF/IFAS Standardized Nutrient Recommendations for Vegetable Crop Production in Florida

Rao Mylavarapu, George Hochmuth, and Guodong Liu

This publication presents the fertilization recommendations for vegetable crops based on soil tests performed by the UF/IFAS Extension Soil Testing Laboratory (ESTL). It contains the basic information from which ESTL soil test reports and fertilization recommendations are generated. The audiences for this information include commercial and small farmers, crop advisers and consultants, state and local agencies, fertilizer industry, and any interested individuals interested in sustainable nutrient and environmental management.

UF/IFAS Nutrient Management Recommendation Series: Carrot

Robert Hochmuth, Vivek Sharma, Thomas Obreza, and Rao Mylavarapu

Nutrient management recommendations for carrot 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.

Commercial Sod Test Form

Rao S. Mylavarapu, William d'Angelo, and Nancy Wilkinson

This document is the Commercial Sod Test Form (SL393), one of the Soil Testing Information Sheets (Submission Forms) used by the UF/IFAS Extension Soil Testing Laboratory. The sheet provides details about how to collect samples and testing fees. 

Soil pH Management for Optimum Commercial Fruit Production in Florida

Guodong Liu, Rao Mylavarapu, Ed Hanlon, and Wei Chieh Lee

Soil pH is one of the most important soil chemical properties and affects nutrient bioavailability and microbial activity. The purpose of this article is to provide an overview for faculty, crop consultants, crop advisors, fruit growers, and students who are interested in fruit production. The crop response to soil pH varies due to crop genetic diversity. Soil pH determines nutrient bioavailability and hence fruit growth, yield, and quality.

UF/IFAS Standardized Fertilization Recommendations for Agronomic Crops

R. Mylavarapu, D. Wright, and G. Kidder

This publication presents in abbreviated form the fertilization recommendations for agronomic crops based on soil tests performed by the UF/IFAS Extension Soil Testing Laboratory (ESTL). It contains the basic information from which ESTL soil-test reports and fertilization recommendations are generated.

Producer Soil Test Form

Rao S. Mylavarapu, William d'Angelo, and Nancy Wilkinson

This document is the Producer Soil Test Form (SL135), one of the Soil Testing Information Sheets (Submission Forms) used by the UF/IFAS Extension Soil Testing Laboratory. The sheet provides details about how to collect samples and testing fees. 

Container Media Test Form

Rao S. Mylavarapu, William d'Angelo, and Nancy Wilkinson

This document is the Container Media Test Form (SL134), one of the Soil Testing Information Sheets (Submission Forms) used by the UF/IFAS Extension Soil Testing Laboratory. The sheet provides details about how to collect samples and testing fees. 

Water Test Form

Rao S. Mylavarapu, William d'Angelo, and Nancy Wilkinson

This document is the Water Test Form (SL133), one of the Soil Testing Information Sheets (Submission Forms) used by the UF/IFAS Extension Soil Testing Laboratory. The sheet provides details about how to collect samples and testing fees. 

UF/IFAS Analytical Services Laboratories (ANSERV Labs): Analytical Procedures and Training Manual

Rao S. Mylavarapu, Nancy Wilkinson, and Yvens Jean

The UF/IFAS Analytical Services Laboratories (ANSERV labs) have been in operation, under slightly different names, for nearly 70 years. Since 2008, the ANSERV Labs have been reorganized to accomplish specific research and cooperative extension service missions through two sections in each area- Analytical Research (ARL) and NELAC Certified Environmental Water Quality Labs (EWQL) for all researchers and students and Extension Soil Testing (ESTL) and Livestock Waste Testing Labs (LWTL) for all citizens and agencies of Florida.  The procedures described in this manual reflect the current methodologies for agricultural testing offered by the UF/IFAS Extension Soil Testing Laboratory (ESTL), the Livestock Waste Testing Laboratory (LWTL), the Analytical Research Laboratory (ARL), and the Environmental Water Quality Laboratory (EWQL). This Circular replaces previous information that is contained in other UF/IFAS publications.

Pine Nursery Soil Test Form

Rao S. Mylavarapu, William d'Angelo, and Nancy Wilkinson

"This document is the Pine Nursery Test Form (SL132), one of the Soil Testing Information Sheets (Submission Forms) used by the UF/IFAS Extension Soil Testing Laboratory. The sheet provides details about how to collect samples and testing fees. 

UF/IFAS Nutrient Management Recommendation Series: Strawberry

Shinsuke Agehara, Thomas Obreza, and Rao Mylavarapu

Nutrient management recommendations for strawberry 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.

UF/IFAS Nutrient Management Recommendation Series: Hemp

Zachary Brym, Lakesh Sharma, Hardeep Singh, Thomas Obreza, and Rao Mylavarapu

Nutrient management recommendations for hemp 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.

UF/IFAS Nutrient Management Recommendation Series: Watermelon

Robert Hochmuth, Mark Warren, Tatiana Sanchez-Jones, Craig Frey, Thomas Obreza, and Rao Mylavarapu

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.

Soil and Container Media Electrical Conductivity Interpretations

E. A. Hanlon, B. L. McNeal, and G. Kidder

This document is about interpreting electrical conductivity (EC) measurements in soils and container media to manage soluble salts from fertilizers, irrigation water, and storm events. It explains how excessive salts affect plant growth, provides guidelines for testing and interpreting EC values, and offers practical recommendations for leaching salts and preventing salt accumulation in landscapes, crops, and containerized plants. First printed April 1993.

A Summary of N and K Research with Muskmelon in Florida

George Hochmuth and Ed Hanlon

Collecting a Poultry Litter Sample for Analysis

George J. Hochmuth and Justin T. Jones

A Summary of N, P, and K Research with Pepper in Florida

George Hochmuth and Ed Hanlon

Summary of N, P, and K Research with Eggplant in Florida

George Hochmuth and Ed Hanlon

A Summary of N, P, and K Research with Sweet Corn in Florida

George Hochmuth and Ed Hanlon

The purpose of this publication is to summarize the historical Florida research literature on nitrogen, phosphorus, and potassium fertilization of sweet corn. This document is not meant to present new fertilization recommendations. The intent of this document is to review literature from all sources that pertains to commercial sweet corn fertilization in Florida's growing conditions.

Hoja de Información: Análisis de Agua

Rao S. Mylavarapu and Christopher Kerr

Hoja de Información: Análisis de Suelo para Productores

Rao S. Mylavarapu and Christopher Kerr

Análisis de Medios de Macetas

Rao S. Mylavarapu and Chris Kerr

Este documento es de las Hojas de Información de Análisis de Suelos. Utilice estas formas para enviar las muestras al UF/IFAS Laboratorio de Servicios Analíticos Laboratorio de Extensión de Análisis de Suelos.

Hoja de Información: Análisis de Suelo de Pinos

Rao S. Mylavarapu y Chris Kerr

Análisis de Suelo para Césped Comercial

Rao S. Mylavarapu and Chris Kerr

How to Calculate a Partial Nitrogen Mass Budget for Potato

Rishi Prasad and George Hochmuth

Calculating Recommended Fertilizer Rates for Vegetables Grown in Raised-Bed, Mulched Cultural Systems

George Hochmuth and Edward Hanlon

A Summary of N, P, and K Research with Tomato in Florida

George Hochmuth and Ed Hanlon

Análisis de Nutrientes para Pastos de Bahía

Rao S. Mylavarapu and Chris Kerr

A Summary of N, P, and K Research with Snap Bean in Florida

George Hochmuth and Ed Hanlon

Hoja de Información: Análisis de Estiércol

Rao S. Mylavarapu and Chris Kerr

A Summary of N, P, and K Research with Cucumber in Florida

George Hochmuth and Ed Hanlon

Nutrient Management of Vegetable and Agronomic Row Crops Handbook

Edited by Kelly T. Morgan

A Summary of N, P, and K Research with Watermelon in Florida

George Hochmuth and Ed Hanlon

SL-325, a 23-page illustrated fact sheet by George Hochmuth and Ed Hanlon, summarizes the historical Florida research literature on nitrogen, phosphorus, and potassium fertilization of watermelon.

A Summary of N, P, and K Research with Squash in Florida

George Hochmuth and Ed Hanlon

Nutrient Mass Budget—The Case of Florida Watermelon Phosphorus Export

George Hochmuth and Jerry Bennett

Hoja de Información: Análisis de Tejido Vegetal

Rao S. Mylavarapu and Christopher Kerr

Hoja de Información: Análisis para Productor de Cítricos

Rao S. Mylavarapu and Christopher Kerr

Hoja de Información: Análisis de Suelo de Jardines y Huertos

Rao S. Mylavarapu and Chris Kerr

Fertilizer Experimentation, Data Analyses, and Interpretation for Developing Fertilization Recommendations—Examples with Vegetable Crop Research

George Hochmuth, Ed Hanlon, and Allen Overman

Hoja de Información: Índice de Fósforo

Rao S. Mylavarapu and Chris Kerr

Contribución de las prácticas de producción de cultivos y las condiciones climáticas a la seguridad microbiológica de los tomates y pimientos

Massimiliano Marvasi, Max Teplitski, y George Hochmuth

Understanding Nitrogen Transformations and Cycling for Sweet Corn Production in Sandy Soils

Rishi Prasad and George Hochmuth

Anaerobic Digesters for Manure Management at Livestock Operations

Rishi Prasad, George Hochmuth, and Ann C. Wilkie

Principles of Sound Fertilizer Recommendations

G. Hochmuth and E. Hanlon

A UF/IFAS numbered Fact Sheet.

Commercial Vegetable Fertilization Principles

G. J. Hochmuth and E. A. Hanlon

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

General Recommendations for Fertilization of Turfgrasses on Florida Soils

T. W. Shaddox

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

Plant Tissue Analysis and Interpretation for Vegetable Crops in Florida

G. J. Hochmuth and E. Hanlon

A UF/IFAS numbered Fact Sheet for Commercial audience(s). in support of UF/IFAS Extension program: Plant Systems