2001 Seed Dealer Update Meetings

1
2001 Soybean Area ConferencesSoybean Variety
Results, Selection, and Management Topics
2

Soybean Variety Test Locations
University of Wisconsin - 2000
Yields Low-High Average







3
Single Year Data
4
Roundup Ready and Conventional Entries in
Southern WI Variety Trials
1997
1998
1999
2000
5
Conventional vs Roundup Ready Soybean Variety
2000 Wisconsin Southern Region - 3 test avg.
N77
N94
6
Conventional vs Roundup Ready Top Soybean
Variety Yield Comparison 1998 to 2000 Wisconsin
Southern Region
7
Roundup Ready vs Conventional Soybean Variety
Comparison 2000 Wisconsin Southern Region
Top 10 of entries
8
Highest Yielding Soybean VarietiesSouthern
Wisconsin - 2000
9
Relative Maturity vs. Yield and Days to
MaturitySouthern Region 1996 to 2000 n1890
Oct 2 Sep 22 Sep 12 Sep 2
Yield (bu/a)
10
Relative Maturity Recommendations for Southern
Wisconsin-Planted May 5
11
Roundup Ready and Conventional Entries in Central
WI Variety Trials
1998
1999
2000
12
Conventional vs Roundup Ready Soybean Variety
2000 Wisconsin Central Region - 3 test avg.
N55
N54
13
Conventional vs Roundup Ready Top Soybean
Variety Yield Comparison 1998 to 2000 Wisconsin
Central Region
14
Roundup Ready vs Conventional Soybean Variety
Comparison 2000 Wisconsin Central Region
15
Highest Yielding Soybean VarietiesCentral
Wisconsin - 2000
16
Relative Maturity vs. Yield and Days to
MaturityCentral Region 1996 to 2000 n957
Oct 17 Oct 7 Sep 27 Sep 17 Sep 7
Yield (bu/a)
17
Relative Maturity Recommendations for Central
Wisconsin-Planted May 10
18
SOYBEAN PRODUCTION COSTSWisconsin PEPS 1987-2000
Average182/acre, 3.55/bu, 52.6 bu/acre
19
SOYBEAN PRODUCTION COSTSWISCONSIN PEPS 1987-2000
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SOYBEAN PRODUCTION COSTSWISCONSIN PEPS 1987-2000
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SOYBEAN Profit and Cost per AcreWISCONSIN PEPS
1987-2000
Grower Return
Acre Cost
22
Average Soybean Production Costs for Profit
Groups in PEPS1987-2000
Total172acre
Total188/acre
23
Summary of Soybean Return/A GroupsWI PEPS
Program 1987-1999
24
SummaryManagement Practices of Top Profit
GrowersorWhat separates them from the rest?

• Take full advantage of Rotation Effect
• Use free inputs like
• variety selection including RM
• sprayer calibration
• planter calibration
• correct date of planting
• avoid unnecessary trips across the field
• Select farms with good yield potential and lower
  rents
• Adjust seeding rates to row widths and disease
  pressure

25
Sorting out the Row Spacing Questions

• Narrow, medium or wide?
• Drill, row planter, hybrid
• Are equipment choices deciding our row spacing?

26
Effect of Soybean Row Spacing onYield and
Cost/buOn-Farm Studies, 1998-2000
1998 9 var, 5 loc 1999 7 var, 4 loc 2000 9 var, 3
loc
27
Yield Response of Soybean to Row Spacing and
TillageArlington, WI 1998-2000
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Plant populations and white mold
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Row width, varieties, and white mold
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ROW SPACING vs. SEEDING RATE1997-99, 6 locations
in WI
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Row Spacing Recommendations

• Whats the best row spacing?
• No longer just a yield question
• Consider your present equipment inventory and
  labor
• In most cases narrow or intermediate row spacing
  will out yield wide row spacing
• Consider seed cost/acre
• Assess disease potential
• Use wider rows if you have white mold problems

32
Raising Continuous Soybean vs. Crop Rotation

• Benefits of rotation have been known for several
  years
• Reduced pest and pathogen populations
• Nutrient benefits
• Improved soil structure
• Increase density and activity of beneficial
  microorganisms
• Allelopathy effects
• Exact reasons not fully understood

33
Effect of Rotation Sequence on Soybean Yield,
1998-2000
LSD 5 3 Bu acre-1
34
Effect of Rotation Sequence on BSR Disease
Incidence
(unpublished data, 1997-1999)
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Continuous Soybean Considerations

• Lose the rotation boost
• Monitor soybean disease, especially WM and BSR,
  select resistant varieties
• No-till will work, except BSR aggravated by
  no-till
• Inoculant probably not needed
• Seed fungicides should be used