Group Title: ARC research report - Jay Agricultural Research Center ; WF73-4
Title: Corn silage trials, 1973
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Permanent Link: http://ufdc.ufl.edu/UF00053557/00001
 Material Information
Title: Corn silage trials, 1973
Series Title: Jay, ARC research report
Physical Description: 3 leaves : ; 28 cm.
Language: English
Creator: Dunavin, Leonard Sypret, 1930-
Agricultural Research Center, Jay
Publisher: Agricultural Research Center
Place of Publication: Jay Fla.
Publication Date: [1973]
 Subjects
Subject: Corn -- Varieties -- Florida   ( lcsh )
Silage -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
non-fiction   ( marcgt )
 Notes
Statement of Responsibility: L.S. Dunavin.
General Note: Caption title.
General Note: "August, 1973"
 Record Information
Bibliographic ID: UF00053557
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 62324044

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FES$
AGRICULTURAL RESEARCH CENTER, JAY
/ \, Jay, Florida 32565

Jay ARC Research Report WF73-4 August, 1973

CORN SILAGE TRIALS, 1973

L. S. Dunavinl



Corn silage trials were conducted in 1973 with four varieties each
of field corn and sweet corn. The corn will be followed by forage sorghum
and that is the reason for using sweet corn and early varieties of field
corn. A later research report will contain the sorghum data. Weather
conditions resulted in a somewhat late planting date. Four replications
were used and data presented are based on averages of the four replications.
Yields were relatively good. For data of earlier years, reference should be
made to Jay ARC Research Report WF72-1 (1972) and Mimeo Report WFES 71-4
(1971). Rust was very prevalent in these trials in 1973 and that, along
with other leaf diseases, has resulted in a rather high disease rating.
Rust, caused by the pathogen, Puccinia sorghi, is not common on corn in
Florida but some does occur each year. It is probable that it will not
often be damaging enough to warrant control measures. Data for these
trials are presented in Tables 1 and 2.











PA... 23. 9 7. .


1Associate Professor (Associate Agronomist)






Table 1


Corn Silage Trials
Field Corn Varieties

Agricultural Research Center
Jay, Florida
1973


Entry Green Forage
(Pounds/acre)
XL-389 (DeKalb) 43,300
3369A (Pioneer) 36,200
E8255 (Excel) 31,300
S-338 (McNair) 40,200
*Oven-dry shelled grain


Oven-Dry Forage
(Pounds/acre)
12,600
11,200
9,400
12,000


Oven-Dry Grain*
(Pounds/acre)
3,770
5,270
4,030
4,340


Disease Insect Damage Lodged
(0-10) (0-10) %
5 1 0
6 1 0
7 1 0
5 1 0


XL-389
3369A
E8255
S-338
*Includes


Green Weight Basis
% Ears* % Leaves % Stalk
39 20 41
47 17 36
42 15 43
43 22 35
shuck


Dry
% Ears*
51
66
62
59


NOTE: Following harvest of this silage, the area
sorghum for a second silage harvest.


PLANTED:
SOIL TYPE:
FERTILIZER:

CHEMICALS:


CULTIVATIONS:


Weight Basis
% Leaves % Stalk
16 33
12 22
11 27
15 26


was planted to forage


April 12, 1973.
Red Bay fine sandy loam.
Pre-plant application of 550 lbs./acre of 0-20-20; side-
dressed with 300 lbs./acre of ammonium nitrate on May 17.
5 lbs./acre of 20% Heptachlor on April 13 to control sugar
cane beetles; 1 pint/acre of 2,4-D on May 11 to control
morning glory and other broad-leaf weeds.
May 3 and May 17.


-2-


XL-389
3369A
E8255
S-338


Height
(Inches)
97
84
84
88


Maturity

Dented
Dented
Dented
Dented


Date of
harvest
July 23
July 23
July 23
July 23






Table 2


Corn Silage Trials
Sweet Corn Varieties

Agricultural Research Center
Jay, Florida
1973


Entry

Golden Cross Bantam
Stowell's Evergreen
Calumet
Table Joy
*Oven-dry shelled grain


Green Forage
(Pounds/acre)
17,100
32,300
26,500
30,700


Oven-Dry Forage
(Pounds/acre)
3,600
6,100
6,400
6,800


Oven-Dry Grain*
(Pounds/acre)
1,260
1,230
2,800
2,440


Golden Cross Bantam
Stowell's Evergreen
Calumet
Table Joy



Golden Cross Bantam
Stowell's Evergreen
Calumet
Table Joy
*Includes shuck


Height
(Inches)
46
69
71
69


Maturity

E. Dough
Dough
Dough
Dough


Date of
harvest
July 3
July 9
July 9
July 9


Green Weight Basis
% Ears* % Leaves % Stalk
53 20 27
41 18 41
51 16 33
44 19 37


Bird Damage Insect Damage Lodged
(0-10) (0-10) (%)
2 1 15
1 1 34
2 2 7
2 1 10

Dry Weight Basis
% Ears* % Leaves % Stalk
65 17 18
47 18 35
66 13 21
57 18 25


NOTE: Following harvest of this silage, the area was planted to forage sorghum for
a second silage harvest.


PLANTED:
SOIL TYPE:
FERTILIZER:

CHEMICALS:


CULTIVATIONS:


April 12, 1973.
Red Bay fine sandy loam.
Pre-plant application of 550 lbs./acre of 0-20-20; side-
dressed with 300 Ibs./acre of ammonium nitrate on May 17.
5 Ibs./acre of 20% Heptachlor on April 13 to control sugar
cane beetles; 1 pint/acre of 2,4-D on May 11 to control
morning glory and other broad-leaf weeds.
May 3 and May 17.


-3-




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