Agronomy notes
Full Citation
Permanent Link: http://ufdc.ufl.edu/UF00066352/00132
 Material Information
Title: Agronomy notes
Uniform Title: Agronomy notes (Gainesville, Fl.)
Physical Description: v. : ill. ; 28 cm.
Language: English
Creator: Florida Cooperative Extension Service
Publisher: Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida.
Place of Publication: Gainesville
Creation Date: February 2011
Subjects / Keywords: Crops and soils -- Florida   ( lcsh )
Crop yields -- Florida   ( lcsh )
Agriculture -- Florida   ( lcsh )
Agronomy -- Florida   ( lcsh )
Genre: serial   ( sobekcm )
government publication (state, provincial, terriorial, dependent)   ( marcgt )
periodical   ( marcgt )
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.
General Note: Description based on: January 1971; title from caption.
Statement of Responsibility: Florida Cooperative Extension Service, University of Florida, Institute of Food and Agricultural Sciences.
 Record Information
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: aleph - 000956365
notis - AER9014
System ID: UF00066352:00132


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IFAS Extension



Top Dress S ',!.. Grains...............

'UF Tito' and 'UF Peace' Two I- .
Rhizoma Peanut Cultivars ..........

Weeds and Pesticides:
Preemeigence Grass Control in Ber
Pastures .................................

SPesticide Applicator Training I i I ,
Coming Soon .........................

Calendar .............................

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The Institute of Food and Agricultural Sciences (IFA%i i 1 .!1 .i.l i Ir!.. ii i ', !.i,!..m- i -. .i !!.i .i .. I. ii Iir... ~ i..II1I c..I I, 1! **! ..le
research, educational information and other services o0d I.. ii.i' .ldii.i, .ii. I I lIiI l i-, I.hI iriI 'I Iil ii .II I ..I I ii, 1.l,, c,-. .-.' i-m.h.II.ip'
or national origin. For information on obtaining other c..c ,i ,I ,1, I. II ,l..I .L. .. ... I -i. i [11 L ci i ..I.c i i i I....L I_ ,c. .c! .Il c
Extension Service/Institute of Food and Agricultural S~ c.i c i iii. c! i- i I l i .l. I .Iilh i c! lc! -t- li.iiiL i!ici!!!I ic '.1

"Agronomy Notes" is prepared by: Maria Gallo, Interinm I.i .. I .* 1 I I i. r I ..r. .. i..!1 I ..i 1,. ii .1. I.. l !
I., . t!,, .' !.il .. l J. Ferrell, E extension W eed Special I .> II..1 I I.,.I 1 I i I. I. I . .. .. I. 1,.h 1 II. 1 . I I .i,,l .. [ hi
E extension A gronom ist ii l. ii . 1.H The use of tra. I. 1. I.. !i .i... .i! ,i ,, .., . .1 !! .. I .i. .. l. ..h .. .! .I .!!.1 .1.. i,.. .! .I!!!
approval to the exclusion of similar products.

Weed Science

Dr. Jason Ferrell, E.tension \\eed Specialist

Ih. 1- II, u. t'.! ,.lu
Dr. Brent Sellers, Extension W\eed Specialist

Preemergence Grass Control in Bermudagrass Pastures
Pl o\\ I H211 \\ J. Ijib klcd 1i0 p .i c '-c inic .'c-iis Co lllo I .li lon Pio\\ I 1i. IJ l1h-' l cc ll Il \ c l icClidcl oill in. l IUM K I im tic is
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l t1001 ock,. Iti olh 111ccin\ c oil 1icaic cmcniwIL fiomni ccd


S H2
er b i c i d e

Active Ingredient':
pendinelhalin: N-(1 -ethylpropyl)-3.4 dimethyl-2.6-dinitrobenzenamine ..... 38.7%
Other Ingredients: .......................................... 61.3
Total: ................................................... 100.00r
"1 gallon c'ntlans 3 8 ipunds of periiumethilin fjrrnulatled aS a anqutkuis ca8 Slj suspension

EPA Reg. No. 241-418

EPA Est. No.

Si used no entlende la etioueta. busque a alguien para que se la explique a used en
detalle oIf you do not understand the ladel. find someone to explain it to you in detail


Dr. Yoatnar Newinu,h, E.teusion Fornge Specialist

Dr. Anne Blonut, Foriae Breeder

'UF Tito' and 'UF Peace' Two New Rhizoma Peanut Cultivars

These two cultivars have been in seed increase in the last t\\o \ ears and \\ III be official\ a\ allable in small
quantities to spriggers this coming February at the Agronomi Foraue Research Unit ( AFRU) neai Gaines\ ille.
Florida. They will also be available in containers (pots) at the Miarianna Research station These t\\o cilti\ ars binnii
to growers the ability to diversify their current monocultures of Flonriurze ihizoma peanut Nlost of the current
planted acreage in the southern United States corresponds to Floruiraze and these t\\o ne\\ cuiilt\ ars seemed to be
highly resistant to the peanut stunt virus that has tested positi\ e for Floriuraze

UF Tito is originally from Paraguay and named in honor of the late Dr EC Tito French. a LUF pioneer in
rhizoma peanut research and advocate of rhizoma peanut for the region LIF Tito \\ as selected fiom ralppiro\tiatel
100 plant introductions that were planted in the late 1980s. it resembles the plant t\ pe of "Floriirze and \\ Ihen
compared to Florigraze it was identified as a cultivar with comparable hluh dri matter i eks. but superior stand
purity, and vigor.

UF Peace is also an introduction from Paraguay that was named after Mr Cairoll Peace. of \aldosta. GA-. a
producer and a long-time promoter of rhizoma peanut. UF Peace is also similar to Floriguraze in appearancee and
i~,1 ld~ d, h ,: id ,,,, d,

ye ll, an illias li ljU emergence anill
spread. Nevertheless, it seems to be
less competitive with common
bermudagrass weed than UF Tito.

Dry matter yield and nutritive value
data is provided in the summary
table and data is presented as
averages over several years for
Citra and Marianna locations.

Dir !Ml.la r i icid C(iItd Piot'ini Dic',libilitl
4-year nic.ll 5-\ i 111Cii Ci II FL
Citra, FL In Ii.111,u FL
ILb -ic ic"
UF Tito 10,4311 II 541 I" 5
UF Peace 10,13'? 11 511 1 ,,I
Florigraze 8,05, "'"i 15
Source Quesenberryetal (2011) 1,,, ~ i

Pesticides Dr. Fred Fishel, Pesticide Information Director

Dr. Ken Langeland, Aquatic \\Weed Science
gatoS @in/1.edn

New Pesticide Applicator Training DVDs Coming Soon
Practically all applicators of restricted use pesticides must successfully pass the Core exam in oider to become
certified prior to being issued a license by FDACS. The 50-question Core exam is based upon the contents of the
study manual SM 1, "Applying Pesticides Correctly." The recently-released full-color 180-paue "th edition is
formatted into 9 chapters along with an appendix containing useful information for handlers of pesticides The
revised pesticide applicator category study manual, Aquatic Pest Control (SM 3), was also released duriinu fall
2010. It serves as the basis for the contents of the 50-question Aquatic Pest Control category e\aim foi certif\ mI
and licensing pesticide applicators.
To accommodate different adult learning styles, an alternative to the written manuals has been de\ eloped D\Ds
containing audio-narration of each manual's entire contents in an automated PowerPoint format is no\\ a\ ailable
The flexible format allows the learner to study the contents of each chapter at his/her own pace The contents of
each chapter are automatically self-run, but allow the learner to stop and start the presentation at amn place to
review key concepts. Each chapter concludes with interactive practice exam questions.
Both DVDs are priced at $25 apiece and may be obtained through the UF/IFAS Extension Bookstore b\ call nI
(352) 392-1764, toll-free (800) 226-1764, or online at www.ifasbooks.com.


Crops Dr. David Wright, Extension Agronomist
North Florida REC, Quingy i n .,...I..

Rotations are one of the main ways to avoid pests, and increase yields of crops in rotation w\ hile miniinizinii
pesticide use. Crop prices for all of the row crops are near historic highs. Cotton, corn, and so\ beans are all
at levels that profits can be made with average yields. Peanuts are sure to follow this trend to maintain the
supply that is needed in the peanut industry. Growers should take advantage of this opportunity to uio\\ crops
that will enhance their normal rotations. Several growers are growing cotton again which is a uood rotation
for peanut, corn and soybean. Long term benefits can be gained with good rotation and it often costs \ enA
little to switch crops if prices are good.

Top Dress Small Grain
Small grain should normally be top dressed with N in late January to early February. One application of N is
usually adequate on soils with a clay layer within the top 6 to 8 inches while splitting applications is adc disable
for soils with the clay layer 12" or deeper. Herbicides may be applied with N for weed control at the same
time. Nitrogen sources should contain sulfur so that about 15 lbs/acre of S is applied between the time at
planting and the top dress applications later in the season. If applications are split, the second application
should be applied 3 to 4 weeks after the first and it should be not later than the first of March Research
conducted with different sources of N (19%, 28%, urea, and ammonium nitrate) had no differences in \\ heat
yield as long as the N rate was similar along with other nutrients. Cooler than normal weather has slo\\ ed
small grain growth but N should still be put out in this time frame to enhance tillering. Warm \\ weather \\ ill
result in fast growth and small grain head usually appear in the last days of March or the first \\ eek of .-pini


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Feb. 1-2 22nd Florida Ruminant Nutrition Symposium, Gainesville, FL

Feb. 6-8 Southern Association of Agricultural Scientists (SAAS),
Corpus Christi, TX.
http://www.saasinc.org/2011 -CorpusChristi/WelcomePg.asp

Mar. 30 47th Florida Dairy Production Conference, Gainesville, FL

May 4-6 60th Annual Florida Beef Cattle Short Course, Gainesville, FL

Jul. 3-9 Caribbean Food Crops Society meeting, Two Mile Hill, St. Michael, B~ r. .I.. ...