Group Title: ARC research report - Jay Agricultural Research Center ; WF74-5
Title: Corn silage trials, 1974
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Permanent Link: http://ufdc.ufl.edu/UF00053558/00001
 Material Information
Title: Corn silage trials, 1974
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: [1974]
 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, 1974"
 Record Information
Bibliographic ID: UF00053558
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 62324070

Full Text




9 i cAgricultural Research Center, Jay
SJay, Florida 32565

JAY ARC RESEARCH REPORT WF74-5 AUGUST, 1974

CORN SILAGE TRIALS, 1974 /

L. S. Dunavin1


Corn silage trials were conducted in 1974 with/ pur varrYdI s eacWt6 d

corn and sweet corn. The corn will be followed by fo a srghum ir3kder to

obtain two silage harvests from two different crops from eame land in e

same year. This double cropping is the reason for using sweet cab4p rly

varieties of field corn. A later research report will contain the so hum data.

As in 1973, the planting date in 1974 was about two weeks later than normal.

A severe drouth occurred in 1974, but yields seem to be surprisingly good in view

of the weather conditions. Disease was considerably less in 1974 than in 1973

when rust was extremely prevalent. There was, however, a considerable amount of

smut. Corn ear worms did some damage. Stink bugs were prevalent, but control

measures (one pound of methyl parathion per acre) were helpful in preventing

severe damage. Data for these trials are presented in Tables 1 and 2.


IaoAciaftn ProEpaor (Ase lat.e Agrononist).








Table 1


CORN SILAGE TRIALS
FIELD CORN VARIETIES

Agricultural Research Center
Jay, Florida
1974


Entry
XL-389 (DeKalb)
3369A (Pioneer)
E8255 (Excel)
S-338 (McNair)


Green Forage
(Pounds/Acre)
32,100a
33,800a
22,800b
34,400a


Oven-Dry Forage
(Pounds/Acre)
9,950a
9,460ab
7,750b
10,660a


Oven-Dry Grain*
(Pounds/Acre)
2,690a
2,930a
3,100a
2,770a


*Oven-dry shelled grain.
Means in a particular column followed by the
different at the 5% level.


Height
(Inches)
91
87
80
89


Maturity Date of
Harvest
Dented July 15
Dented July 8
Dented July 15
Dented July 15


Green Weight Basis
% Ears** % Leaves % Stalk
36 18 46
38 21 41
48 17 35
39 23 38


same letter are not significantly


Disease
(0-10)
1
2
2
2

Dry
% Ears**
46
50
62
49


Insect Damage
(0-10)


1
1

Weight Basis
% Leaves %
19
18
14
22


**Includes shuck.


Planted:
Soil type:
Fertilizer:

Chemicals:



Cultivations:


April 12, 1974.
Red Bay fine sandy loam.
Pre-plant application of 250 Ibs./acre of 8-24-24; side-dressed
with 300 lbs./acre of ammonium nitrate on May 10.
Milogard at 2-1/2 lbs./acre following planting as a weed control;
5 lbs./acre of 20% Heptachlor on April 26 to control sugar cane
beetles; Methyl parathion at 1 lb./acre on June 19 to control
stink bugs.
May 10 and May 21.


- 2-


XL-389
3369A
E8255
S-338



XL-389
3369A
E8255
S-338


Lodged
(%)
0


Stalk
35
32
24
29








Table 2


CORN SILAGE -ji.J.S
SWEET CORN V..1 ..:

Agricultural Research Center
Jay, Florida
1974


Entry
Golden Cross Bantam
Stowell's Evergreen
Calumet
Table Joy


Green Forage
(Pounds/Acre)
21,800b
25,600ab
30,600a
28,600a


Oven-Dry Forage
(Pounds/Acre)
6,760b
7,420b
9,180a
7,720b


*Oven-dry shelled grain.
Means in a particular column followed by the same letter are
different at the 5% level.


Golden Cross Bantam
Stowell's Evergreen
Calumet
Table Joy



Golden Cross Bantam
Stowell's Evergreen
Calumet
Table Joy

** Includes shuck.


Height
(Inches)


62
81
77
71


Green
% Ears**
47
42
43
45


Maturity Date of
Harvest
Denting July 8
Denting July 15
Denting July 8
Denting July 8


Weight Basis
% Leaves % Stalk
25 28
16 42
22 35
20 35


Disease
(0-10)
3
3
2
3

Dry
% Ears**
56
52
58
57


Oven-Dry Grain*
(Pounds/Acre)
2,500bc
2,080c
3,760a
2,930b


not significantly


Insect Damage Lodged
(0-10) (%)
2 20
2 5


1

Weight Basis
% Leaves %
26
20
21
19


2


Stalk
18
28
21
24


Planted:
Soil type:
Fertilizer:

Chemicals:



Cultivations:


April 12, 1974.
Red Bay fine sandy loam.
Pre-plant application of 250 lbs./acre of 8-24-24; side-dressed
with 300 lbs./acre of ammonium nitrate on May 10.
Milogard at 2-1/2 lbs./acre following planting as a weed control;
5 lbs./acre of 20% Heptachlor on April 26 to control sugar cane
beetles; Methyl parathion at 1 lb./acre on June 19 to control
stink bugs,
May 10 and May 21.


-3-




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