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