Brian Boman

Brian Boman
University of Florida | UF · Indian River Research and Education Center

About

105
Publications
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Introduction
Skills and Expertise

Publications

Publications (105)
Article
This publication addresses perimeter borders as a best management practice. Written by Vivek Sharma, Kati W. Migliaccio, Brian Boman, Jemy Hinton, and Kevin Hancock, and published by the UF/IFAS Department of Agricultural and Biological Engineering, revised May 2021.
Article
Huanglongbing (HLB) disease is a threat to most citrus (Citrus sp.) producing areas and is associated with the bacterium Candidatus Liberibacter asiaticus. The disease is transmitted by the vector asian citrus psyllid [ACP (Diaphoria citri)]. Antipsyllid screen houses can potentially reduce and eliminate HLB development in young citrus plantings by...
Article
Completely enclosed screen houses can physically exclude contact between the asian citrus psyllid [ACP (Diaphorina citri)] and young, healthy citrus (Citrus sp.) trees and prevent huanglongbing (HLB) disease development. The current study investigated the use of antipsyllid screen houses on plant growth and physiological parameters of young ‘Ray Ru...
Article
An industrial sweetpotato cultivar, CX-1, offers several advantages as an alternative crop for bioethanol production, including high agronomic productivity and high starch content as well as viable coproducts for additional bioenergy recovery. A two-year agronomic field trial resulted in a root yield of 12.3 dry t ha⁻¹ after optimization of plantin...
Article
Full-text available
p class="sar-body"> A study was carried out to examine distribution of salt affected soils by types and extent in the Ndungu Agricultural Development Project (NADP) area of Tanzania. The objective was to generate information to guide salt-affected soil management for sustainable rice production. Conventional methods including use of mini-pits and p...
Article
The Qinghai-Tibet Plateau plays an important role in the ecological safety and human health of the surroundings due to its unique geographical position and function. Therefore, it is necessary to study the pollution status and potential risk in this area. This study summarizes the distribution of different organic pollutants in biota and environmen...
Article
The Qinghai-Tibet Plateau is the highest geographical unit in the world. Thus, it serves an important role in evaluating long-term ecologic conditions and environmental status and changes over time. This study summarizes major and trace element concentrations in biota and in water and soil. It also pays attention to gaseous pollutant and particle c...
Article
Full-text available
The Institute of Food and Agricultural Sciences (IFAS) is an Equal Opportunity Institution authorized to provide research, educational information and other services only to individuals and institutions that function with non-discrimination with respect to race, creed, color, religion, age, disability, sex, sexual orientation, marital status, natio...
Article
Full-text available
The timing and distribution of rainfall determine both the length and quality of the growing season, and hence have important implications for agricultural production and food security. Using over 50 years of climatic data for Arusha District in Tanzania, the paper presents an analysis of growing season characteristics and other meteorological vari...
Article
Polybrominated diphenyl ethers (PBDEs) have been widely used as fire-retardants. Due to their high production volume, widespread usage, and environmental persistence, PBDEs have become ubiquitous contaminants in various environments. Nanoscale zero-valent iron (ZVI) is an effective reductant for many halogenated organic compounds. To enhance the de...
Article
The responses of two energy beet (sugarbeet) genotypes, AR355 and AC211, to three (high, medium, and low) water and nutrient supply (WNS) regimes were investigated in an attempt to find an optimal water and nutrient rate for selected sugarbeet (Beta vulgaris L.) genotypes. The results showed that photosynthesis rate (PN), transpiration rate (E), an...
Conference Paper
Fresh citrus fruit production in the state of Florida has been limited in recent years due to the effects of huanglongbing (HLB) disease. The causal pathogen of HLB, Candidatus Liberibacter asiaticus, is vectored by the Asian citrus psyllid (ACP, Diaphorina citri). Affected citrus trees display chlorotic leaves and limbs, and fruit is usually disco...
Article
ASABE member Brian Boman has been working in Haiti to introduce modern agricultural production practices, specifically drip and sprinkler irrigation and protected agriculture. His job is to help Haiti's agricultural producers reduce the adverse environmental impacts of farming and ranching operations. A large portion of his time is devoted to the U...
Article
Crop production in areas with a high water table and poorly drained soils requires special drainage infrastructure to allow adequate rooting depth. In addition to facilitating drainage, this infrastructure also facilitates discharge of agrichemicals dissolved in drainage and runoff water. Copper export from bedded citrus production areas was evalua...
Article
Microsprinkler irrigation is often the preferred method of irrigation for tree and vine crops since it provides a greater degree of freeze protection than drip irrigation and provides water and energy savings over sprinkler and flood irrigation methods. With chemigation, microirrigation also provides an economical method of applying fertilizer and...
Chapter
Agricultural best management practices (BMPs) are practical, cost-effective actions that agricultural producers can take to reduce the amount of pesticides, fertilizers, sediment, and other pollutants entering water resources. BMPs are designed to benefit water quality while maintaining or even enhancing agricultural production. Implementing BMPs b...
Article
Much uncertainty exists regarding the discharge characteristics of terrestrial-use herbicides into aquatic systems. This study evaluated the temporal distribution and concentrations of five commonly used herbicides (atrazine, bromacil, metolachlor, norflurazon, and simazine) in a typical South Florida watershed. Surface water samples were collected...
Article
HS1165, a 7-page fact sheet by Timothy M. Spann, Ryan A. Atwood, Megan M. Dewdney, Robert C. Ebel, Reza Ehsani, Gary England, Stephen H. Futch, Tim Gaver, Tim Hurner, Chris Oswalt, Michael E. Rogers, Fritz M. Roka, Mark A. Ritenour, Mongi Zekri, Brian J. Boman, Kuang-Ren Chung, Michelle D. Danyluk, Renee Goodrich-Schneider, Kelly T. Morgan, Robert...
Article
Revised! AE248, a 12-page fact sheet by Brian Boman, Darren Cole, Steve Futch, Ward Gunter, Jack Hebb, and Chris Wilson, instructs citrus grove workers in fertilizer application best management practices. Includes references and quizzes throughout. Published by the UF Department of Agricultural and Biological Engineering, March 2009. AE248/AE248: F...
Article
Despite efforts to optimize water and nutrient inputs to Florida's vegetable and fruit crops, the sandy soils, shallow water table, and tropical climate of Florida result in nutrient leaching losses that are unavoidable. Water quantity and quality management strategies that can reduce these nutrient losses from Florida's horticultural crops were re...
Article
SL316, a 9-page illustrated guide by Thomas Obreza, Mark Clark, Brian Boman, Tatiana Borisova, Matt Cohen, Michael Dukes, Tom Frazer, Ed Hanlon, Karl Havens, Chris Martinez, Kati Migliaccio, Sanjay Shukla, and Alan Wright, provides a basic, concise, and understandable description of the United States Environmental Protection Agency’s (EPA) proposed...
Conference Paper
Microsprinkler irrigation is often the preferred method of irrigation for tree and vine crops since it provides a greater degree of freeze protection than drip irrigation and provides water and energy savings over sprinkler and flood irrigation methods. With chemigation, microirrigation also provides an economical method of applying fertilizer and...
Article
Revised! Circular 1039, a 7-page illustrated fact sheet by Kati W. Migliaccio, Brian Boman, and Gary A. Clark, provides a guide for using chlorine to treat inhibiting microorganism buildup in irrigation systems. Includes references. Published by the UF Department of Agricultural and Biological Engineering, May 2009.
Article
Revised! AE244, an 11-page fact sheet by Brian Boman, Darren Cole, Steve Futch, Ward Gunter, Jack Hebb, and Chris Wilson, is part of the Best Management Practices (BMPs) for Citrus Grove Workers series. It provides information for citrus grove workers about toxicity and effects of exposure to pesticides and personal protective equipment. Includes t...
Article
Revised! AE247, a 15-page fact sheet by Brian Boman, Darren Cole, Steve Futch, Ward Gunter, Jack Hebb, and Chris Wilson, is part of the Best Management Practices (BMPs) for Citrus Grove Workers series. It provides information for citrus grove workers about pests, pest control methods, pesticide toxicity, how to transport pesticides, first aid and d...
Article
Revised! AE246, a 13-page illustrated fact sheet by Brian Boman, Darren Cole, Steve Futch, Ward Gunter, Jack Hebb, Chris Wilson, and Geovanne Stinghen, is part of the Best Management Practices (BMPs) for Citrus Grove Workers series. It covers personal protective equipment, tractor and herbicide preventive maintenance, mixing and loading, posting, h...
Article
Revised! ABE-367, a 5-page fact sheet by Brian Boman, Darren Cole, Steve Futch, Ward Gunter, Jack Hebb, and Chris Wilson, is part of the Best Management Practices (BMPs) for Citrus Grove Workers series. It emphasizes the importance of reading pesticide labels, the risks of misusing pesticides, and what is on the label. Includes a 10-question quiz a...
Article
AE439, a 2-page illustrated fact sheet by Kati W. Migliaccio, Brian Boman, Jemy Hinton, and Kevin Hancock, describes perimeter borders used in agricultural production systems in Florida, their benefits and maintenance. Includes references. Published by the UF Department of Agricultural and Biological Engineering, January 2009. AE439/AE439: Best Man...
Article
ABE-383, a 2-page illustrated fact sheet by Kati W. Migliaccio, Brian Boman, Jemy Hinton, and Kevin Hancock, addresses a specific set of Best Management Practices that can be described as ribbon barriers. Includes references. Published by the UF Department of Agricultural and Biological Engineering, October 2008.
Article
Full-text available
ADDITIONAL INDEX WORDS. citrus, nutrition, mono-potassium phosphate, foliar fertilization, water stress, stem-end rind breakdown, peel pitting, fruit decay During the 2006-07 and 2007-08 fresh citrus seasons, reports of peel breakdown problems were more frequent and severe than usual. Plots were established during the 2007-08 season in commercial g...
Article
Emitter clogging continues to be a major problem in micro-irrigation systems. For high-valued annual crops and for perennial crops, where the longevity of the system is especially important, emitter clogging can cause large economic losses. Even though information is available on the factors causing clogging, controlled measures are not always succ...
Article
Micro-sprinkler systems are primarily used to irrigate tree and vine crops. The system designs are similar to other micro-irrigation systems, but micro-sprinkler systems generally tend to require a higher flowrate per unit area. Typically micro-sprinkler installations have one 40 to75 L/h flowrate emitter per tree. The most common (spray) emitters...
Article
ABE-367, a 6-page illustrated fact sheet by Brian Boman, Darren Cole, Steve Futch, Ward Gunter, Jack Hebb, and Chris Wilson, instructs citrus grove workers in reading pesticide labels. Includes a quiz and references. Published by the UF Department of Agricultural and Biological Engineering, August 2007. ABE367/AE243: Understanding the Pesticide Lab...
Article
Lysimeters constructed from polyethylene tanks were filled with Oldsmar fine sand soil. A single "Midsweet" orange on Carrizo citrange rootstock tree was planted in each lysimeter on May 5, 1991. Fertilization treatments included traditional fertilization using applications of dry-soluble fertilizer at 6-week intervals (TF), weekly fertigation appl...
Book
This is a for-sale publication, SP-362 available at the UF-IFAS bookstore: http://ifasbooks.ifas.ufl.edu/p-266-field-guide-to-soil-identification-for-floridas-citrus-growing-regions.aspx
Article
Pesticide export from citrus production areas is a concern in the Indian River Lagoon drainage basin (Florida, USA). These studies evaluated nontarget deposition and losses of the insecticide oxamyl from typical flatwoods citrus production areas in South Florida. Deposition was estimated with the use of Teflon spray targets placed across nontarget...
Conference Paper
Adoption of best management practices (BMPs) to address non-point pollution from agricultural sources started in Florida citrus in the early 1990s. Since that time, BMPs have evolved to play a major role in production practices in most commodities throughout the state. Although the earliest citrus BMPs were singular in that they only addressed the...
Conference Paper
Florida's unique combination of sub-tropical climate, sandy soils, high-value crops, and shallow water tables have made the development and implementation of best management practices (BMPs) to reduce environmental impacts from agricultural production a challenge. Most of the BMP development has followed commodity lines, with the primary programs d...
Article
Circular 1454, a 12-page illustrated publication, describes the proper design of screened wells to ensure compatibility with the rest of the irrigation system and long life, efficiency, and economic operation. Published by the UF Department of Agricultural and Biological Engineering, October 2006. Circular 1/CH166: Design and Construction of Screen...
Article
Circular 1495, an 11-page illustrated publication by Brian Boman and Sanjay Shukla, gives equations and examples for measuring depth and volume of water, describes several devices and techniques for measuring flow. Published by the UF Department of Agricultural and Biological Engineering, October 2006. Circular 1/CH153: Water Measurement for Agricu...
Article
Six trials were conducted to determine whether lower spray volumes or inclusion of different surfactants would permit adequate thinning of mandarin hybrids (Citrus reticulata hybrids) at a much lower cost per hectare. Sprays were applied using a commercial airblast orchard sprayer during physiological drop when fruitlets averaged 8 to 16 mm in diam...
Article
Full-text available
SL-235 is a 5-page illustrated fact sheet by Chris Wilson, Brian Boman, Ed Stover, Janet Bargar and Jack Hebb. This document summarizes the results from a study evaluating the effectiveness of turning sprayer nozzles off at row ends as a proposed best management practice for preventing non-target deposition of pesticides in surface water connection...
Article
-1 drinking water standard. This occurred in an area of well-drained sandy soils known as the Central Florida Ridge that extends north and south through the central part of the Florida peninsula. State agencies could have used a strictly regulatory approach and restricted how much nitrogen growers could apply. Instead of setting arbitrary regulatio...
Article
Full-text available
This document is ABE 362, one of a series of the Agricultural and Biological Engineering Department, UF/IFAS Extension. Original publication date April 2006. ABE362/AE388: Total Maximum Daily Loads and Agricultural BMPs in Florida (ufl.edu)
Article
Hydraulics is the study of the behavior of liquids as they move through channels or pipes. Hydraulic principles govern the flow of water through irrigation pipes. A basic understanding of these principles is necessary for understanding the design and operation of irrigation systems. This publication provides an introduction to hydraulics as it rela...
Article
Full-text available
ADDITIONAL INDEX WORDS. irrigation, management, fertilization SUMMARY. Although citrus (Citrus spp.) is sensitive to salinity, accept-able production can be achieved with moderate salinity levels, depending on the climate, scion cultivar, rootstock, and irrigation-fertilizer management. Irrigation scheduling is a key factor in managing salinity in...
Article
ADDITIONAL INDEX WORDS. Citrus paradisi, fruit size, irrigation, juice quality, yield SUMMARY. A study was initiated in the 1997–98 production season to evalu-ate the effects of salinity on grapefruit yield and fruit quality in the Indian River area of Florida. The experi-ment was conducted on 'Ray Ruby' grapefruit (Citrus paradisi) planted in 1990...
Article
Full-text available
Citrus trees on Swingle citrumelo (Citrus paradisi Macf. × Poncirus trifoliata [L.] Raf.) rootstock grow well throughout most of the citrus regions of Florida but certain soil characteristics limit the economic life of trees particularly in the Indian River region. Citrus growers and managers in the Indian River region were surveyed and interviewed...
Article
Full-text available
Rootstock significantly affected the development of stem-end rind breakdown (SERB) on 'Valencia' and navel oranges (Citrus sinensis), but not 'Ray Ruby' grapefruit (C. paradisi) or 'Oroblanco' (C. grandis x C. paradisi), and affected post-harvest decay on navel orange, 'Ray Ruby' grapefruit, 'Oroblanco' and one of two seasons (2002) on 'Valencia' o...
Article
Full-text available
ADDITIONAL INDEX WORDS. best man-agement practice, BMP, Indian River citrus, pesticide, copper SUMMARY. Off-target deposition of pesticidal spray material is both an economic loss to the grower and a potential environmental problem in southern Florida. This study evaluat-ed the reduction in non-target deposi-tion of copper resulting from differ-ent...
Conference Paper
The Total Maximum Daily Load (TMDL) program requirements of the federal Clean Water Act are requiring states to develop new initiatives for managing agricultural nonpoint sources. On the east coast of Florida, the citrus industry is taking the lead in developing and implementing watershed-based BMP programs to reduce impacts to off-site impacts of...
Article
This is Document No. CH165 and Circular 1412, one of a series of the Agricultural and Biological Engineering Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Publication date: July 2002. https://edis.ifas.ufl.edu/ch165
Article
Microirrigation, either by drip or microsprinkler emitters, is the most common method of irrigation for citrus in Florida. Research and experience have shown that insects can substantially increase the costs of operating and maintaining microirrigation systems in Florida. Ants that enter the system when it is not in use and clog emitters when the s...
Article
This document is Bulletin 333, one of a series of the Agricultural and Biological Engineering department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Publication: March, 1999. Please visit the EDIS Web site at http://edis.ifas.ufl.edu
Article
Microirrigation is by far the most common method of irrigating citrus in Florida. Typically, citrus trees are irrigated with microsprinklers on stake assemblies. Research and experience have shown that there are several important factors to consider when designing, installing, operating, and maintaining a microsprinkler system in Florida. This arti...
Article
Evapotranspiration (ET) was measured for citrus trees grown in drainage lysimeters during the 1990/91 to 1995/96 production seasons. The 11.5 ft diameter by 36 inches deep lysimeters were designed to simulate the high water table conditions common to citrus grown in the Flatwoods areas of Florida. Trees were watered with a microsprinkler irrigation...
Article
A field experiment was conducted to determine the effectiveness of two microsprinkler pulsator designs in preventing ant damage to the assemblies. The original pulsator case design used 2.5 mm (0.10 in.) diameter circular vent holes located near the top and bottom of the case. The alternative case design (ant-bar) had four pairs of vent slots which...
Article
The clogging rates of microsprinkler emitters with orifice diameters of 0.76 mm (0.03 in., black base), 1.02 mm (0.04 in., blue base), 1.27 mm (0.05 in., green base), and 1.52 mm (0.06 in., red base) were evaluated in a citrus grove over a three-year period. The experiment used a randomized complete block design with eight emitters per plot and fiv...
Article
Larvae of Selenisa sueroides (Guenee) can cause failure of the supply tubing used on microsprinkler assemblies in Florida citrus groves. The S. sueroides caterpillars use the microsprinkler supply tubing as alternate hosts to native plant species with hollow stems. They bore holes in the tubing, enter the hollow interior, and pupate. This experimen...
Article
A four-year field experiment was conducted to compare conventional fertilization by broadcasting granular material with a combination broadcast/fertigation program. The experiment was conducted on mature Ruby Red grapefruit trees in a south Florida Flatwoods grove. The conventional fertilization (CONV) consisted of broadcast applications 3 times pe...
Article
Larvae of Selenisa sueroides (Guenee) are known to use the spaghetti tubing on microsprinkler assemblies in Florida citrus groves as alternate hosts to native plant species with hollow stems. The S. sueroides caterpillars chew holes in the spaghetti tubing in order to enter and pupate. An experiment was conducted to determine if S. sueroides caterp...
Article
Twenty-one drainage lysimeters were installed in 1988 to measure water balance parameters for citrus trees. The lysimeters were designed to simulate the high water-table conditions that exist for the more than 150,000 ha of citrus grown in the Florida Flatwoods. The lysimeters were constructed from 3.5-m diameter by 1.0-m deep polyethylene tanks. Y...
Article
The effects of salinized irrigation water on tree canopy and root growth, water use, foliar nutrition and leaching losses below the rootzone were studied during a 2-year period using single tree lysimeters. Eighteen 6-year-old ‘Valencia’ orange trees on either Carrizo citrange (CC) rootstock or sour orange (SO) rootstock were each transplanted into...
Article
An experiment was conducted to determine if wear on emitter orifices over long periods of operation could significantly affect microsprinkler discharge rates. Twelve combinations of flow control method, base size, and operating pressure were used in the experiment. Flow control methods were by orifice control (OC), vortex control (VC), or by pressu...
Article
Effects of salinized irrigation water on tree canopy and root growth, water use, foliar nutrition, and leaching losses below the rootzone were studied during a 2-year period using single tree lysimeters. Eighteen 6-year-old `Valencia' orange trees on either Carrizo citrange (CC) rootstock or sour orange (SO) rootstock were each transplanted into 7....
Article
A computerized water ordering system is developed to quickly determine the distribution of the water demands for an irrigation water delivery system. The inputs required for the program are water-order requests by system users at specific locations with specified starting and ending times. The water-ordering status for fields can be quickly changed...
Article
Variations in microsprinkler discharge rates were examined to determine the effects of system operating pressure and the length and diameter of micro tubing. Many combinations of orifice diameter, system pressure, and tubing diameter and tubing length were compared. Five emitters with orifice diameters ranging from 0.69 to 1.73 mm were used on stak...
Article
Eleven types of spray emitters were evaluated along with five spinner types. Emitter flow rate, pattern distribution and uniformity were measured for each type of emitter at pressures of 103, 138, and 172 kPa. The spinner types of emitters had higher uniformity of water application than spray types under the no-wind conditions. Most spray emitters...
Article
Microsprinkler assembly discharge variations were examined to partition contributions from the spaghetti tubing and the emitter. The coefficients of variation of the emitters alone were found to be excellent (less than 2%) for the two models tested. Variations in 0.61 m lengths of spaghetti tubing ranged from 2.0% to 7.6%. Spaghetti tubing diameter...
Article
Full-text available
The Institute of Food and Agricultural Sciences (IFAS) is an Equal Employment Opportunity -Affirmative Action Employer authorized to provide research, educational information and other services only to individuals and institutions that function without regard to race, creed, color, religion, age, disability, sex, sexual orientation, marital status,...
Article
Proper irrigation scheduling is the application of water to crops only when needed and only in the amounts needed; that is, determining when to irrigate and how much water to apply. With proper irrigation scheduling, crop yields will not be limited by water stress from droughts, and the waste of water and energy used in pumping will be minimized. O...