Corn Silage Drydown In Wisconsin During 1997
September 25, 1997 4(25):147-148
Joe Lauer, Corn Agronomist
Below are silage moisture levels for various counties in Wisconsin. These data were
collected from the same spots in the field and harvested over time. Projected dates
for silage harvest will change as environmental conditions influence maturity and
the rate of drydown.
|
Table 1. Corn silage drydown in Wisconsin counties during 1997.
|
County
|
Corn hybrid
maturity rating
|
Sample
date
|
Silage moisture (%) on sample date
(Min-Ave-Max)
|
Rate of drydown between sample dates
(% per day)
|
Projected date for 65% silage moisture *
|
|
Chippewa
|
Shorter-season
(< 95 d RM)
|
9/4
9/8
9/11
9/15
9/18
|
72-72-73
69-71-72
63-65-66
63-66-68
61-63-65
|
---
0.1
2.0
-0.3
1.0
|
9/18
9/20
Now
9/17
Now
|
Full-season
(> 95 d RM)
|
9/4
9/8
9/11
9/15
9/18
|
72-73-73
69-71-72
67-67-67
69-70-72
67-68-69
|
---
0.5
1.3
-0.8
0.7
|
9/20
9/20
9/15
9/25
9/24
|
|
Fond du Lac
|
Shorter-season
(< 100 d RM)
|
9/9
|
69-71-78
|
---
|
9/21
|
Full-season
(> 100 d RM)
|
9/9
|
72-75-78
|
---
|
9/29
|
|
Jefferson
|
Shorter-season
(< 105 d RM)
|
8/28
9/2
9/9
9/16
|
83-84-86
77-81-84
73-76-77
67-69-72
|
---
0.6
0.7
1.0
|
10/5
10/4
9/30
9/24
|
Full-season
(> 105 d RM)
|
8/28
9/2
9/9
9/16
|
76
75-79-85
63-73-79
61-68-72
|
---
---
0.9
0.7
|
9/19
9/30
9/25
9/22
|
|
Manitowoc
|
Shorter-season
(< 95 d RM)
|
9/4
9/8
9/11
9/15
9/18
|
74-76-77
74-75-76
69-72-74
64-70-74
63-67-68
|
---
0.3
1.0
0.5
1.0
|
9/26
9/28
9/25
9/25
9/22
|
Full-season
(> 95 d RM)
|
9/4
9/8
9/11
9/15
9/18
|
72-74-76
72
69-70-70
68-70-72
66-68-69
|
---
---
0.7
0.0
0.7
|
9/22
9/22
9/21
9/25
9/24
|
|
Sheboygan, Ozaukee, Washington
|
Shorter-season
(< 95 d RM)
|
9/8
9/15
|
79-80-82
77-80-82
|
---
0.0
|
10/8
10/15
|
Full-season
(> 95 d RM)
|
9/8
9/15
|
80-82-88
79-83-87
|
---
0.0
|
10/12
10/21
|
|
Waukesha
|
Shorter-season
(< 100 d RM)
|
8/28
9/2
9/9
9/16
|
84-86-87
80-83-84
78-80-82
74-76-78
|
---
0.6
0.4
0.6
|
10/9
10/8
10/9
10/8
|
Full-season
(> 100 d RM)
|
8/28
9/2
9/9
9/16
|
83
77
76-78-80
70-74-78
|
---
---
0.0
0.6
|
10/3
9/26
10/5
10/4
|
|
*Projection uses average drydown rate of 0.5% per day. Rate is greatly affected
by environmental conditions.
|