Group Title: Agronomy Notes
Title: Agronomy notes /
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Permanent Link: http://ufdc.ufl.edu/UF00066352/00131
 Material Information
Title: Agronomy notes /
Uniform Title: Agronomy notes (Gainesville, Fl.)
Physical Description: v. : ill. ; 28 cm.
Language: English
Creator: Agronomy Department
Florida Cooperative Extension Service
Publisher: Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida
Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida.
Place of Publication: Gainesville
Publication Date: January 2010
 Subjects
Subjects / Keywords: Crops and soils -- Florida   ( lcsh )
Crop yields -- Florida   ( lcsh )
Agriculture -- Florida   ( lcsh )
Agronomy -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
periodical   ( marcgt )
 Notes
Additional Physical Form: Also available to subscribers via the World Wide Web.
Additional Physical Form: Electronic reproduction of copy from George A. Smathers Libraries, University of Florida also available.
Statement of Responsibility: Florida Cooperative Extension Service, University of Florida, Institute of Food and Agricultural Sciences.
General Note: Description based on: January 1971; title from caption.
 Record Information
Bibliographic ID: UF00066352
Volume ID: VID00131
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: alephbibnum - 000956365
notis - AER9014

Full Text


UFW UNIVERSITY of
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IFAS Extension


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Features:



Crops:
.'ii.'. Use on Major Cereal Crops ................. Page 3
Soil Tests and lime Applications ..................... Page 4


Forage:


Ocoee New White Clover Release........................Page 4


Weeds and Pesticides:
New' Soil Fumigant Toolbox Available.............. Page 5



Miscellaneous: :
A~gronomy New'Faculty Hires ....................... Page 2 -
C alendar.........................................................P age 6





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, color, sex, age, handicap
or national origin. For information on obtaining other extension publications, contact your county Cooperative Extension Office. Florida Cooperative
Extension Service/Institute of Food and Agricultural Sciences/University of Florida/Millie Ferrer-Chancy, Interim Dean.


"Agronomy Notes" is prepared by: Maria Gallo, Interim Chair and Y. Newman, Extension Forage Specialist I .II. I. 1. 1.. J. Ferrell, Extension
Weed Specialist 1i. i. IIt. i.1il *1..I Fred Fishel .1.1I.1 il. I.1,. D. Wright, Extension Agronomist iii nl. I .1.1 The use of trade names does not
constitute a guarantee or warrant of products named and does not signify approval to the exclusion of similar products.







Miscellaneous


Agronomy New Faculty Hires

The Agronomy Department is very pleased to announce that four new faculty members have recently joined the
department:

Dr. Ronnie Schnell (rschnell@ufl.edu)- Assistant Professor in Cropping
Systems, West FL REC (Jay/Milton). Dr. Schnell joined the Agronomy Department
in November. He received his Bachelor of Science degree in Horticulture and Crop
Science from Sam Houston State University in 2002. He received his MS in
Agronomy in 2007 and a PhD in Agronomy in 2010 from Texas A&M University. His "
work has focused on cropping systems and management for enhanced environmental -
sustainability.

Dr. Jianping Wang (wangip@ufl.edu )- Assistant Professor in Translational
Genomics, Gainesville campus. Dr. Wang joined the Agronomy Department in
November, 2010. She earned her PhD in Plant Breeding and Genetics from Michigan
State University in 2005. She received her MS degree also in Plant Breeding and
Genetics, from China Agricultural University, and her undergraduate degree in
Agronomy, also from the Agricultural University in Beijing. Before coming to
Florida, Dr. Wang was a research associate in the Crop Science Department at I
University of Illinois, where she led a project on map-based cloning of insect
resistance genes in soybean. She has experience working with different plants like
rice, maize, papaya, sugarcane, and grasses, among others. J

Dr. Diane Rowland (d1rowland(@ufl.edu )- Associate Professor in Crop
Physiology, Gainesville campus. Dr. Rowland is also a campus based faculty that
joined the Agronomy Department last August. She received her bachelors' and
doctoral degrees in biology with an emphasis in plant physiology from the University '
of New Mexico. In the last decade, she has worked as a research plant physiologist at
the USDA/ARS National Peanut Research laboratory in Dawson, GA, and most
recently with the Texas A&M university system. Her appointment is 30% teaching
and 70% research. She will be teaching Advanced Crop Physiology during the spring *
semester. Her research focus is on crop water use and the development of water-use
efficient cropping systems.

Dr. D. Calvin Odero (deodero@ufl.edu) Assistant Professor in Weed
Science, Everglades REC (Belle Glade). Dr. Odero joined the Agronomy
Department since July 2010. He received his bachelors' degree in Horticulture in 1997
from Jomo Kenyatta University of Agriculture and Technology in Kenya, and his MS
(2005) and PhD (2008) degrees in Agronomy from the University of
Wyoming. Dr. Odero brings expertise in the area of weed science and particularly
control in glyphosate resistant plants. His appointment is 65% Extension and 35%
research. Dr. Odero will be working with sugarcane, rice, sod, winter vegetables,
and biofuel crops in organic soils of the Everglades Agricultural Area and mineral
soils of southern Florida.







Crops Dr. David Wright, Extension Agronomist
North Florida REC, Quing wright@ufl.edu



Nitrogen Use on Major Cereal Crops
High yields of corn, rice and wheat depend to a large extent on fertilizer N for high yields. Global use of
commercial N has increased more than 30 fold since 1940 and 100 fold over the last 100 years. Presently, 50%
of the world's population relies on N for food production. About 50% more grain will be required over the
next 40 years to feed an estimated 9.3 billion people. This will require more N production and crops which
have higher N use efficiency, or more grain produced with less N. Some of the latest genetic technology being
worked on is producing more grain or fiber with less applied N. Nitrogen is often the most limiting factor in
crop production on non-leguminous crops. It would require 4-6 times more land area to be in production
without N fertilizer to maintain current food production. Nitrogen originates from the atmosphere while other
nutrients are mined and treated to produce a plant available form of nutrition. However, N from the atmosphere
is unavailable and only a small amount is converted to biologically available forms. Atmospheric N is made
into readily available forms through a process using natural gas. Nitrogen fertilizer is expensive costing more
than $45billion/year. Crops use N fertilizer inefficiently with as much as 50% of that applied not being
assimilated by the crop. The remaining N in the soil is either used by the next crop, <7%, or is lost from the
soil/plant system resulting in ground or surface water degradation. Currently N comprises 72% of the fertilizer
applied worldwide as compared to 13-16% for P and K. N management will become more critical and will
have to be better managed by using proper sources, using nitrification inhibitors. Slow release materials, better
placement, foliar applications, balanced with other nutrients, using rotations with N fixing legumes, use of
conservation technology for building up organic matter, use of precision farming techniques as well as breeding
for improved N used efficiency.






Crops Dr. David Wright, Extension Agronomist
North Florida REC, Quingi wright@ufl.edu

Soil Tests and Lime Applications
La Nina conditions this winter will be a conducive to making lime applications after soil samples have been
pulled. Drier than normal conditions are predicted for the next 3-4 months so lime can be applied even in
typically damp areas. It also allows time for the lime to react with the soil to adjust pH for the summer crops.
For those growers who use minimum tillage and strip tillage, surface applications are acceptable. We have long
term plots that have not been turned or had lime incorporated for over 30 years that are still producing good
yields of cotton, peanut, corn and other crops. A high calcium and phosphorus layer can develop in the top 2-3
inches after many years of surface applications of fertilizer and lime but has little or no impact on yields if all
nutrients are in adequate supply.



Forages Dr. Yoana Newman, Extension Forage Specialist
jyneCW@ufl.edu

'Ocoee' New White Clover Release
Ocoee white clover is a new release from University of Florida. Ocoee is an intermediate type with spreading
growth habit that has tolerance to southern root-knot nematode (RKN) (Meloidogyne spp). Drought conditions in
Florida accentuates the effect of nematodes on clover establishment, production and persistence. Ocoee was
selected from the University of Florida release 'Osceola', and has resistance to multiple RKN species. In studies
conducted at University of Florida it showed 85% more resistance than 'Osceola'. Similarly, yields were higher for
'Ocoee' (2700 lb/acre) than Osceola (2200 lb/acre) during the 2003-2004 season at the Agronomy Forage Research
Unit. Ocoee white clover is an option for farmers with areas that have high nematode populations that negatively
impact their yields adding to stand decline. As a white clover, Ocoee is adapted to well drained soils that have good
water holding capacity. Ocoee white clover will fix nitrogen and add to the forage quality of the pasture.


Osceola white clover on left with roots affected by RKN nematodes; on the right, RKN resistant 'Ocoee' white clover.
Photo by Ken Quesenberry






Pesticides Dr. Fred Fishel, Pesticide Information Director
weeddr@aufl.edu



New Soil Fumigant Toolbox Available

In May 2009, after consulting with stakeholders and obtaining extensive public input, EPA issued Amended
Reregistration Eligibility Decisions (REDs) for the soil fumigant pesticides, including final new safety measures to
increase protections for agricultural workers and bystanders. Implementation began to occur in 2010 and will
continue through 2011. The goal of these measures is to establish a baseline for safe use of the soil fumigants
throughout the United States, reducing fumigant exposures and significantly improving safety.

To assist in understanding the new measures, EPA has created a new virtual toolbox for information on soil
fumigation, which is available at http://www.epa.gov/pesticides/reregistration/soil fumigants/. The soil fumigants
toolbox now provides easy access to a variety of soil fumigant training, outreach, and other resource materials for
applicators and handlers, communities, state and local agencies, and others interested in understanding and
implementing the current requirements for safe use of soil fumigants. Key features of the toolbox include safety
brochures for handlers of soil fumigants, training modules on the new soil fumigant requirements, templates for
soil fumigant management plans, and updated fact sheets on the soil fumigant mitigation measures and
implementation schedule. New materials will be added to the toolbox as they become available during 2011.


M







Calendar




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Ag Connect Expo. Atlanta, Georgia. For more information, please check
http://www.agconnect.com


UF/IFAS Cattlemen's Institute and Allied Trade Show, Kissimmee


AGRItunity 2011, Conference and Allied Trade Show (West Central Florida),
Bushnell. For more information, please check
http://sumter.ifas.ufl.edu/Agritunity/index.shtml


Feb. 6-8 American Society of Agronomy (ASA) Southern branch meeting,
Corpus Christi, TX.





C TH W D
AGI ONNCTAGRCUTUE
2 nAE rd hwTAE HW-EPR DCAIN-NTOKN


"TOTAL HERD MANAGEMENT"


8:00AM TRADE SHOW OPENS
9:00AM WELCOME
IM SRICKLA FCA PRESIDENT
9:10AM UF/IFAS UPDATE
DR JAcI PANs, UI nERSTI o FLOMDA/IFASSR.ViCE PRDNT
9:15AM CONDITION, NUTRITION & CONSTRUCTION (LIVE ANIMAL DEMO)
O. MATT HvRSOm, TNIVERSTIn o FItoMIFAS EXTENSION BEEP CATTLE SOCIALIST
10:15AM TRADE SHOW BREAK
10:45AM TRACKING YOUR PROGRESS (PANEL DISCUSSION)
GENE Louis, MACARUtaAsiAGEcotLOG REseARCH CENTER BUCK ISLAND R MANAGER,
CHRIS HARDHARDEE FAM, GECnRAL MANAAE & OWNER
KA RICHAREsoN, RJCHARES BROS., INC, PaS & GENERAL MANAGER
ERi kACOSmN,A GRSERVSDESERET CATL IT CITUS, VP &GENEAMLMANAGE
11:45AM COMMISSIONER OF AGRICULTURE
12:00PM AWARD PRESENTATION & LUNCH
1:00PM BULLS: SIZE DOES MATTER (LIVE ANIMAL DEMO)
MInKEMtlUlvic, LsBEOs,GENERAL MANAGER
ROAND STAE KENStINGTO CaTrLE CMPUA MAaINWG PAErM
BoB WEAnE, UIVESY1y OFr MISSOURI ASSISTANT PRFosSOR, ETrN SON BEF CATTT =rre'
1:45PM TRADE SHOW BREAK
2:15PM GETTING THE GIRLS READY
WEs WIuAMLI, WILLIAsoCrON COMPAwr


-A-t
AGRItunity

Saturday, Jan.29,
2011
8AM-3PM


Newthisyear on Friday
January 28,2o11u!
UvestockToutr Si Crop Tour SiS
Build Your Own Farm Safety Manual
Workshop 830

West Central Florida
Agricultural Education
Center
7620 SR 471
Bushnell, FL 33513
Sumter County
Fairgrounds


AGRItunity 2011

Conference and Trade Show
General Session: Daniel Salatin of Polyface Farms and
Florida MarkMaker


livesck WMrshos:
PasturedPork
Salad Bar Beef by Daniel
Saatin


Crop Workshoa:
EnhancingPolinationwith
Bees
Alternatle Citrus


Successfl GoatProduction Shiltake Mushroom
Production


Pasture Management


Register and pay online:
http://sumter.ifas,ufl.edu
Sio Pre-Registation
$15 Day of Conference
Lunch available forpurchase

Call (352) 793-2728
for information


Advanced Peach Production



U UNIVERSITY of
F FLORIDA

A EqitiialOpporrihInstitton
Sponsored by Citrs.
Hermando, Lake, Pascoand Sumter
County Extension


Ii


Jan. 8-10



Jan. 20


Jan. 29




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