Corn Silage Drydown In Wisconsin During 1997

September 10, 1997 4:(24):141

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. Carefully monitor shorter-season hybrids for silage moisture.

Table 1. Corn silage drydown in Wisconsin counties during 1997.
County
(Sample dates)
Corn hybrid
maturity rating
Silage moisture (%) on
last sample date
(Min-Ave-Max)
Rate of drydown between
last two sample dates
(% per day)
Projected date
for 65% silage moisture *
Chippewa
(9/4, 9/8)
Shorter-season
(< 95 d RM) Full-season
(> 95 d RM)
69
71
0.9
0.5
9/16
9/20
Jefferson
(8/28, 9/2, 9/9)
Shorter-season
(< 105 d RM) Full-season
(> 105 d RM)
76
73
0.7
0.9
10/1
9/25
Manitowoc
(9/4, 9/8)
Shorter-season
(< 95 d RM) Full-season
(> 95 d RM)
75
74
0.2
0.0
9/28
10/10
Sheboygan, Ozaukee, Washington
(9/8)
Shorter-season
(< 95 d RM) Full-season
(> 95 d RM)
80
82
---
---
10/8
10/10
Waukesha
(8/28, 9/2, 9/9)
Shorter-season
(< 100 d RM) Full-season
(> 100 d RM)
80
76
0.4
0.1
10/9
10/1
*Projection uses average drydown rate of 0.5% per day. Rate is greatly affected by environmental conditions.

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