Enhancing research through extramural...
 Faculty travel
 Student news
 Annual symposium highlights graduate...
 Alumni news
 Regional ASA-Student Activities...

Group Title: AgroGator
Title: AgroGator. Volume 13, Issue 1. Spring 2003.
Full Citation
Permanent Link: http://ufdc.ufl.edu/UF00066345/00009
 Material Information
Title: AgroGator. Volume 13, Issue 1. Spring 2003.
Uniform Title: AgroGator
Physical Description: Serial
Creator: Institute of Food and Agricultural Sciences
Affiliation: University of Florida -- College of Agricultural and Life Sciences -- Department of Agronomy -- Institute of Food and Agricultural Sciences
Publisher: Institute of Food and Agricultural Sciences, University of Florida
Publication Date: Spring 2003
 Record Information
Bibliographic ID: UF00066345
Volume ID: VID00009
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved, Board of Trustees of the University of Florida

Table of Contents
    Enhancing research through extramural funding
        Page 1
        Page 2
        Page 3
    Faculty travel
        Page 4
    Student news
        Page 5
    Annual symposium highlights graduate student research
        Page 6
    Alumni news
        Page 7
    Regional ASA-Student Activities Subsection (SAS) meeting at UF
        Page 8
Full Text

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Enhancing Research Through

For the fiscal year 2001-2002, the
Agronomy Department received
$1,782,582 in extramural funding,
an increase of $933,195 over 2000-
2001. After several years of de-
clining extramural funding, the de-
partment doubled grant funds re-
ceived during the last fiscal year.
During the current fiscal year
(2002-2003), the department has
already received over $1,600,000
in grant funding and is on target to
again exceed the previous year's
total. With declining state funding
to support departmental programs, I
Agronomy faculty are submitting
more grant proposals than in previous
years to a wide range of granting agen-

cies at the federal, state, foundation and
commercial level.

tramural Funding
Federal funding for our re-
r, search programs includes numer-
ous USDA sources, U.S. Army
S Corp of Engineers, NASA and
the U.S. Agency for International
Development. The department
is receiving significant funding
from state agencies including the
Florida Department ofAgricul-
ture and Consumer Services and
the Florida Department of Envi-
ronmental Protection. Funding
from commercial/foundation
sources includes support from
S the International Rice Research
Institute, the National Peanut
Board and various commodity check-
off programs.

Examples of Grant-Funded Projects

Phytoremediation of
Phosphorus-Enriched Soils
Dr. Johannes Scholberg's Crop
Phytoremediation of Phosphorus-En-
riched Soils in the Lake Okeechobee
Region project is one of the largest
grants in the department. Funded by
the Florida Department of Agriculture
and Consumer Services for a three-year
period, the total award is $419,580. Dr.
Martin Adjei, Range Cattle Research
and Education Center, Dr. Carrol
Chambliss, Agronomy Department, and
Dr. Jack Rechcigl, Gulf Coast Research
and Education Center, are cooperating
Excess accumulation of soil phos-
phorus (P) caused by intensive agricul-
tural operations has been linked to peri-

odic algae blooms in Lake Okeechobee,
degradation of natural ecosystems, and
may impact recreational use of surface
waters. One of the key objectives of
the Lake Okeechobee Protection Pro-

Extramural Funding ......................... 1
Phytoremediation of Soils .................. 1
Peanut Allergy Risks.......................... 2
Peanut Production in Africa ................ 3
FacultyTravel ....................................... 4
2002 Holiday Party ............................. 4
Field Days ............................................ 4
Student/Staff Social ....................... 4


gram is to implement cost-effective pro-
grams for minimizing P-loading of sur-
face waters via development of envi-

Scholberg continued on page 2

Retirement Reception .......................... 4
Student News ......................................... 5
Symposium Highlights ........................... 6
Alumni News ............................................ 7
Faculty/Staff News ................................. 7
PeanutSales ............................................ 7
ASA-Student Meeting .........................
SnapShots .............................................


IAgrnm Department





Spring 2003


Dr. Scholberg examing field plots.

Scholberg continued from page 1
ronmentally sound and economically vi-
able production and/or remediation
strategies. Reduction of future P-load-
ing rates will require reduction of re-
gional P-imports and remediation ofpre-
viously P-impacted sites by means of
improved production oflocally harvested
forages with greater P uptake and re-
moval. These and other management
practices may help in the restoration of
originally low-P environments.
A component of the current P-load-
ing concern is the import of livestock
feeds into the region. Historically, dairy
producers have relied on imported con-
centrates and high-quality forages to in-
crease production leading to P-accumu-

lation in limited areas and/or in-
creased production costs. Pasture
production is the largest land use in
the five priority basins north of the
lake; however, productivity and for-
age quality of many pastures remains
inadequate. Local dairy units con-
tinue to depend on concentrates and
imported forages to maximize pro-
duction levels. Improved use of lo-
cally-grown forages will not only
address the need to reduce overall
diet P, but also facilitate remediation
of P-enriched sites and further re-
duce regional P-imports into the
Okeechobee region.
Although a number of forages
adapted to the region, such as
stargrass and limpograss, are high
yielding, previous research has
placed relatively little emphasis on
their potential use for phytoremediation
of P-enriched soils. The overall goal
of this project is to determine the
phytoremediation (P-mining) capacity
of high-quality and high-yielding forage
crops in the Lake Okeechobee region.
In collaboration with participating grow-
ers, field studies will be established and
maintained to assess the effects of
supplemental N-fertilization on forage
productivity, P-removal rates, and re-
sidual soil-P levels. The ultimate goal
of this project is to develop guidelines
as to which crops and/or management
practices are most effective in remov-
ing P from impacted sites.
An interdisciplinary team of re-
searchers and extension specialists in-

eluding agronomists and soil scientists
are actively involved in this program.
Participants have extensive experience
in forage production in the Okeechobee
area, crop nutrient uptake, and environ-
mental quality issues associated with
production agriculture. The project will
provide information to develop a com-
prehensive and cost-effective manage-
ment program that will provide grow-
ers with practical guidelines for improved
use of forage production for remediation
of P-impacted sites and will allow
Florida farmers to assume a central role
in preserving farms and natural ecosys-
tems for future generations.

Reducing Peanut Allergy

As part of a large multi-institutional
project lead by Alabama Agricultural
and Mechanical University and funded
by USDA/CSREES, Dr. Maria Gallo-
Meagher has received over $120,000
toward research to reduce peanut food
allergy risks. The University of Geor-
gia is a cooperator on this regional
Due to its nutrition and low cost,
peanut is a popular food. Peanut con-
tains mostly unsaturated fat which has
been shown to lower LDL-cholesterol
levels and reduce the risk of heart at-
tack. Also, peanut is a good source of
folic acid which helps prevent neural
tube defects, and contains almost half

Gallo-Meagher continued on
page 3

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l Collc,-c of .Ai c iiliiiru id L ifc D -i,_ ii& L I\ oli
t Sc1c'1i'-' N.iiiM B\lrd
liiiLllnlC 01 Food iiid A,',iiculniul Ill' \\ V lCi
SciCicc P( P Bo\ I 1115,I1
0GrII I|'\llc Floind.i ;2.I l-a.5a.i
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.A1'-'lc iloI is pElubl_ lcul lll tT ill llunil l 1in d lnrdli k ofl the Dri. Ali in Fo\x A.;roG. lr Onllinle:
A. lio iio n\! Dcplllnilnci Edinoi IlI)p '!l'OnOll iIN s I11] C(il


Spring 2003


Gallo-Meagher continued
from page 2
of the 13 essential vitamins and 35%
of the essential minerals. However,
as little as half a peanut can cause
a fatal reaction for severely aller-
gic individuals.
There has been an increase in
the observed incidence of peanut
allergies in children over the last 10
years. This is thought to be due to
the increased popularity and use of
peanut products in the last decade,
and the introduction of peanut prod-
ucts to children's diets at an early S
age. Thus, it is increasingly common D
for the public to be exposed to an
abundantly utilized and often disguised
food such as peanut. Therefore, it is im-
portant to find a way to reduce the food
allergy risks associated with peanut.
This project examines the proper-
ties of the three major peanut allergen
genes, ara h 1, ara h 2, and ara h 3 at
the molecular level. The proteins en-
coded by these genes belong to the
vicilin, conglutin and glycinin families of
seed storage proteins, respectively. The
study examines family size and compo-
sition of these allergen genes in peanut.
The ultimate goal of this project is to
gain an understanding of how the genes
coding for these allergens are regulated
so that we may be able, in the future, to
either completely turn them off or alter
the proteins in some manner to create
a hypo-allergenic peanut.

Peanut Production in Benin
and Ghana
Through a project funded by USAID
(Peanut Collaborative Research Support
Program/University ofGeorgia), Dr. Ken
Boote has received over $460,000 to
study the simulation of peanut cropping
systems to improve production efficiency
and enhance natural resource manage-
ment in Ghana and Benin.
Dr. Boote, in cooperation with Dr.
Jim Jones, Agricultural and Biological

hannon May grinding peanut samples in
r. Gallo-Meagher's lab.

Engineering, leads this project that fo-
cuses on peanut production in Benin and
Ghana in West Africa. The main ap-
proach used in this project is to apply a
peanut crop simulation model in con-
junction with field and on-farm research
in these countries to diagnose reasons
for low peanut yields and to explore
options for increasing productivity. Fac-
tors being researched include foliar dis-
ease, poor stand establishment, water
stress, and low phosphorus fertility. In
its sixth year, col-
laborating scien-
tists in Ghana and
Benin have con-
ducted peanut ex-
periments with
various treatment
factors and have
measured plant
growth and yield,
as well as soil wa-
ter content and
weather. Dr. Boote at a palm
UF scientists
have traveled to Benin and Ghana to
visit trials and provide research assis-
tance. Each host country scientist has
visited UF twice to use systems analy-
ses with the peanut crop growth model
to evaluate yield gaps in peanut produc-
tion and to hypothesize strategies for

oil s

improving production. Early ex-
periments showed that the peanut
crop was losing its leaves prior to
maturity because of leaf spot dis-
eases. Crop model simulations
suggested that peanut pod yields
could be nearly doubled if leaf area
could be retained by use of fungi-
cides to control leaf spot diseases
(fungicides are used in the USA but
not inAfrica). These model analy-
ses led to several years of on-sta-
Stion trials in which fungicide was a
Treatment. These experiments
confirmed that peanut yield was in
creased more than 60% by use of
fungicide. The potential yield in-
crease was sufficiently attractive
that on-farm trials of fungicide and
phosphorus were initiated in 2002 to
test the better treatments under farmer
conditions. Economic feasibility analy-
ses are planned.
With 60-100% yield increases from
this and other technologies, peanut pro-
ducers in these WestAfrican countries
will be able to meet the increasing in-
country demand for peanut and possi-
bly reestablish a viable peanut export
market. UF researchers hope to im-
prove scientist
capabilities in
these countries,
to explore op-
e f tions for improv-
ing peanut pro-
duction in these
countries, and to
incorporate re-
search out-
comes into the
peanut crop
tand in Ghana. growth model
that is also being
used for similar objectives in the USA.
The scientific collaboration from this
project also provides valuable informa-
tion for applications in the USA as well.
Visit http://www.griffin.peachnet.edu/
pnutcrsp.html for more information on
this project. A


F 3

Spring 2003

SFaculty Travel

In August, 2002, Dr. Ken -
Boote traveled to Accra and -
Wa, Ghana to evaluate on-
station and on-farm trials of
fungicide and phosphorus
treatments conducted by
Dr. J. B. Naab, Ghana co-
operator, on a peanut collaborative re-
search project. He also traveled to
Bamako and Koutiala, Mali to partici-
pate in Dr. Jones' NASA-funded
project, Carbon for Communities, to
evaluate crop cover and biomass ac-
cumulation of maize, sorghum, and
cotton crops relative to remote sens-
In October, 2002, Dr. Ken Boote
traveled to New Delhi, India and pre-
sented a paper titled "Systems Analy-
ses with the CROPGRO-Legume
Model to Discover Yield Gaps from
Pests, Soils, and Management" at the
Rice-Wheat Consortium Research
Planning Workshop on Climate Vari-
ability and Rice-Wheat Production in
the Indo-Gangetic Plains.
In March, 2003, Dr. Greg
MacDonald traveled to Georgetown/
Letham, Guyana to assist with devel-
opment of sustainable peanut produc-
tion in the Rupununi Region of Guyana.

[Holiday 2002 Party

I F 1 e I D

SMaNv 8, 2003 --Fbrue Field Da\ at the Ja\ Research Farm
* July 8,)03 Auionom\ \\eed Science Field Dai Deep South \\eed
TOQLAu: Farm .
* temi er n- oil o|p Fil D in Resea tilFim
For information on th three thsto be field at thl.Ja\ Research
Farm. contact Dr Bdarr Breck&e ..


The Annual Holiday Party was held at
the Austin Cary Forest on December
13, 2002. Fazoli's catered the
holiday event with desserts
generously provided
by faculty and
staff. Once
Again, Dr.
Stocker enter-

trained party
goers with
holiday trivia
questions and

On July 19, 2003, the Agronomy De-
partment will hold a reception for re-
tired or soon-to-be retired personnel.
The reception will be held at the new
UF Emerson Alumni Hall from 2:00
- 5:00 PM. Drs. Pfahler, Prine and
Smith and Nancy Byrd will be rec-
ognized for their many years of ser-
vice to UF/IFAS. In the near future,


you will be ].c'i\ InII'
an invitation to the Re-
tirement Reception and we hope that
you will join us for this event. Contri-
butions in support of the reception
should be sent to Dr. Randall Stocker
at the Center for Aquatic and Inva-
sive Plants, PO Box 110610,
Gainesville, FL 32611-0610.



1 4 1

Spring 2003


Student News ...

UF Agronomy students are well rep-
resented in the national Student
Activities Division of ASA. Dawn
Gibson was elected ASA-SAS Re-
cording Secretary, one of five national
offices. Scott Prospect was elected
Co-chair of the Undergraduate Re-
search Symposium and Debbie Tyson
was elected Chair of the Student Es-
say Contest.

Amy Marshall received the
2002-03 Charles E. Dean
Award recognizing academic
excellence and important con-
tributions to the Agronomy Depart-
ment. In addition to a plaque, Amy re-
ceived a $500 cash award. She com-
pleted all requirements for the M.S. de-
gree in December 2002 under the di-
rection of Dr. Gallaher. In addition to
being an outstanding student, Amy was
active in campus and community ac-
tivities including Habitat for Humanity,
nursing homes and organizations that
help feed the hungry. In addition to
pursuing the Ph.D. degree at Purdue
University, Amy accepted an Instruc-

Competition, Agronomy undergraduate
students advanced in the competition
and represented the department and uni-
versity in an exceptional manner.
Stuart Rymph, Amy Marshall and
Scott Tubbs were selected as recipi-
ents of the Paul Robin Harris Award
for 2002-03. Each presented a paper
at the 2002 ASA, CSSA, SSSA meet-
ings in Indianapolis.
Stu Rymph was nominated for
the distinguished Gerald O. Mott
Graduate Student Award in Crop
I At the Southern Weed Science
Society Meeting held in Houston
during late January, Travis
Teuton was awarded first place in the
Student Poster Presentation contest and
David Yoder was awarded first place
in the Student Paper Presentation com-
Elkana Nyambati was the recipi-
ent of the Agronomy Department' s
Award of Excellence for Ph.D. Disser-
tation for 2002-03. His dissertation titled
"Management and Nutritive Evaluation
of Mucuna pruriens and Lablab
purpureus-Maize Intercrops in North-
western Kenya" covered on-site re-

tor position in the Agronomy
Department where she will
be responsible for profes-
sional certification of ASA, K
CSSA and SSSA members.
Scott Tubbs received a
$1,000 Environmental Stud-
ies Scholarship from Annie's
Homegrown, Inc. This
scholarship recognized
Scott's research on conser-
vation tillage used on dairy
At the ASA meeting in
Indianapolis, Amy VanScoik
won the ASA-SAS Speech Left to right: Sam Willingham, Amy VanScoik, John McQueen, Daw
Contest. In the Quiz Bowl Debbie Tyson, Erica Duran at the 2003 Student/Staff Appreciation
Contest. In the Quiz Bowl

search in western Kenya. Dr.
Sollenberger served as his major pro-
fessor at UF. Dr. Nyambati has re-
turned to Kenya and is working with
the Kenya Agricultural Research Insti-
Amy Marshall was the depart-
mental recipient of the Award of Ex-
cellence for M.S. Thesis for 2002-03.
Her thesis was titled "Sunn Hemp
(Crotalaria juncea L.) as an Organic
Amendment in Crop Production." Amy
presented her research at state, regional
and national meetings while working
with Dr. Gallaher.
During the Spring 2003 semester,
The Agronomy-Soils Club/Florida Foun-
dation Seed Producers awarded schol-
arships to six outstanding students ma-
joring in plant science. The following
students received a $600 scholarship in
recognition of academic achievement
and service to UF and national organi-
Dawn Gibson received a Senior
Scholarship. She is president of the
Agronomy/Soils Club, active in the
Gator Band and StudentActivities Sec-
tion ofASA. In addition to receiving a
scholarship, Dawn was selected as the
Outstanding Senior in
Agronomy at the University
of Florida.
John McQueen re-
ceived a Senior Scholarship.
He is treasurer of the
Agronomy/Soils Club and
co-manager of the Ag Gar-
Scott Prospect re-
ceived anAt-Large Scholar-
ship. He is vice-president of
the Agronomy/Soils Club, co-
manager of the Ag Gardens

vn Gibson, Awards continued on

page 6



1 5 7

Spring 2003


I t udenlt News continues... I

Awards continued from page 5 Amy Van Scoik received a Junior New Students-Spring &003
and active intheStudentActivitiesSec- Scholarship. She is Secretary of the Belkys Bracho/Gallaher t
tion of ASA.Agronomy/Soils Clubs and active at the Peter Kalogridis/Scholberg"w
tion of national level. Jose Linares/Scholberg
Deborah Tyson received a Junior Sam Willingham received the
Scholarship in recognition of her ser- Graduate Student Scholarship. He is Recent Graduates
vice to the Agronomy/Soils Club and past treasurer of the Student Activities Amy Marshall/Gallahep
ASA's Student Activities Section. Section of ASA. Travis Teuton/Bri.ck.c J

CAnnual Symposium Highlights Graduate Student Research)

T he Agronomy Department was
well represented at the Third An-
nual IFAS College of Agricultural and
Life Sciences Graduate Research Sym-
posium held at the J. Wayne Reitz Union
on March 19, 2003. This symposium
offers graduate students an opportunity
to share research findings with col-
leagues, learn about current research
in other fields, and interact with a broad
spectrum of students and faculty. Dr.
Win Phillips, Vice President for Re-
search and Dean of the Graduate
School, was the keynote speaker. The
following presentations were excellent
examples of current graduate student
research being conducted by students
in the Agronomy Department.

Stuart Rymph's presentation was titled
"Canopy Photosynthesis and Partition-
ing of New Growth During Regrowth
of Bahiagrass." Stu's paper reviewed
the results of a growth study undertaken
as part of his dissertation research and
was coauthored by Dr. Boote.

Eastonce Gwata's presentation was
titled "Evaluating Genetic Parameters
of Nodulation in Soybean Using Leaf
Color." This paper reviewed a portion
of Eastonce's dissertation research that
investigated the genetic control of soy-

bean nodulation with cowpea-type
rhizobia and was coauthored by Drs.
Wofford and Boote.

Corey Cherr's poster presentation
was titled "Can a Sequence of Green
Manures Replace Chemical N as a
Fertilizer Source for Sweet Corn" and
was coauthored by Drs. Scholberg,
McSorley, Comerford and Phatak.
Corey's research focuses on manage-
ment of selected cover crops (green
manures) as bio-fertilizers for subse-
quent economic crops. As an over-
view of Corey's field work, the poster
presented preliminary effects of such
biofertilizers on economic crop growth
and yields, soil properties and pest sup-

Il-Ho Kang's poster presentation
was titled "Molecular Characterization
of Three Major Peanut Allergen
Genes" and was coauthored by Drs.
Gallo-Meagher and Ozaias-Akins
(University of Georgia). This research
focuses on genes that code for the
seed storage proteins that are respon-

sible for allergic reactions of some
people to peanut food products.

Scott Tubbs' poster presentation was
titled "Forage Yield of Ten No-Tillage
Triple Crop Systems in Florida" and was
coauthored by Dr. Gallaher. Many
farmers in Florida leave their land fal-
low during the fall season when a quick
growing crop could provide a supple-
mental forage and also aid in nutrient
cycling from animal waste products.
Incorporation of a leguminous crop into
one of these multiple-cropping systems
gave high yields of quality forage while
simultaneously reducing nematode
populations. The reduction in erosion
and pollution hazards from such systems
makes the addition of a fall-grown crop
sustainable and beneficial to the farmer
and the environment.

The Graduate Research Symposium is
an initiative to enhance the quality of
graduate education in the College of
Agricultural and Life Sciences (CALS).
Nationally, among colleges of agricul-
tural and life sciences, UF/CALS ranks
fifth in graduate enrollment and pro-
duces the fourth largest number of
Master's degrees and the fifth largest
number of Ph.D. degrees in the nation.
The symposium highlighted some of the
outstanding research being conducted
by UF/CALS graduate students. A


1 6 1

Spring 2003


SFaculty/Staff News

SPeanut Sales!!!

Shane Bray moved to Lake Provi-
dence, Louisiana and accepted em-
ployment as a Field Marketing Rep-
resentative with Terral AgriService.
After 15 years at the Everglades
Research and Education Center,
Christopher Deren accepted a po-
sition as Center Director of the Uni-
versity of Arkansas' Rice Research
and Extension Center in Stuttgart,
Ron Kern retired after 30 years
of service to UF/IFAS. In retire-

ment, Ron plans to travel and de-
vote more time to beach combing
and surfing.
Yue Li accepted a Biological
Scientist position with the Depart-
ment of Family, Youth and Commu-
nity Sciences. She continues to
work with Dr. Smith as an OPS
Eunice Mobley accepted a po-
sition with the Florida Department
of Children and Families in Miami
effective November 22, 2002.

SThe Agronomy/Soils Club has a
few cans of peanuts for
I -- sale. Two flavors are
S _...' available Dry Roast
Honey and Roasted
Salted. The 56 oz. can is $7.00 while a
case of six cans is $40.00. Contact the
Agronomy Office at 304 Newell Hall
(352-392-1811, Ext. 201) if you would
like to support the Agronomy/Soils Club
fund raising project that provides schol-
arships for deserving students. Call us
before they are sold out!


Alumni News

Jim Gaffney (Ph.D., 1996) is employed by BASF Corporation as a
Regional Research Manager in Illinois.

Gale Buchanan (B.S., 1959; M.S., 1962) is Dean and Director ofi
the College of Agricultural and Environmental Sciences at the
University of Georgia.

Paul (P. J.) Myers (B.S., 1996) is the General Manager/Vice
President of Applied Aquatic Management, Inc. AAM, Inc.
provides terrestrial, aquatic and exotic vegetation control
programs to industry, government, utilities and individuals
throughout Florida. P. J. is the President of the Florida Aquatic
Plant Management Society for 2003.

Chandra Reddy (Ph.D., 1982) is the Dean of Graduate Studies at
Alabama A&M University. Dr. Reddy was recently appointed Dean
of Graduate Studies after serving as Interim Dean.


Linda Lindenberg (Brooks) (B.S., 1981) is a Senior Sales Representative/Account Manager for Dow
AgroScience Agricultural Chemical Sales/Marketing in Melbourne Beach, Florida.

Robert Green (Ph.D., 1982) is a Turfgrass Research Agronomist in the Department of Botany and Plant
Sciences at the University of California, Riverside.

David Moon (M.S., 1993) is a Senior Research Associate with Pioneer Hi-Bred in Arkansas. David
develops improved varieties of wheat for the mid-southern and southeastern United States.

1 7 1

Spring 2003

Regional ASA-Student Activities Subsection (SAS) Meeting Held at UF
For the first time, the regional meeting ofASA-SAS was hosted by the UF Agronomy/Soils Club. The UF campus was the
site of the meeting held on April 11-12, 2003. Students representing agronomy clubs throughout the eastern United States
participated in the meeting that included visits to UF research sites and facilities.

SPlease tell us what you are doing! We would like this newsletter to serve as a source of information on activities within
the Department and news of alumni and friends. Send us information on your recent activities and we will be pleased
to include them in future newsletters.



Year Grad



Current occupation (title, company, business) or other news of interest



Return to: Dr. Alison M. Fox, AgroGator Editor, University ofFlorida, Department ofAgronomy, P.O. Box 110500,
, Gainesville, FL 32611-0500. Email: amfox@mail.ifas.ufl.edu





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