Lynn Lagerstedt

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Lynn Lagerstedt
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Crop Production Today-

• There are no sacred cows

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• Every Production Practice Requires YOUR Attention

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The High Cost of Crop Production

• Agronomics
• - Economics
• Convenience

Do we need to change our priorities?
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The High Price of Fertilizer
Anhydrous Ammonia
Price November 25, 2008 Price November
23, 2007 (From one
source)
1,100.00/ton
600.00/ ton
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The High Price of Fertilizer

• 0-0-60
• Potash
• Price November 25, 2008 Price November 23,
  2007 (From one source)

307.00/ton
900.00/ton
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The High Price of Fertilizer

• 11-52-0
• Phosphate
• Price November 25, 2008 Price November 23,
  2007 (From one
  source)

1,100.00/ton
507.00/ton
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The High Price of Fertilizer

• 10-34-0
• Liquid Starter
• Price November 25, 2008 Price November 23,
  2007 (From one
  source)

1,100.00/ton
390.00/ton
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Seed Prices

• 2009
• Dekalb Seed Corn
• DKC52-62 (RR) 239.00/unit
• DKC52-40 (RR/CB) 235.00/unit
• DKC52-59 (VT3) 320.00/unit
• DKC52-53 (VT3) 296.00/unit

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Seed Prices

• 2009
• If seed price is 320/unit,
• Per acre cost _at_ 32,000 seeds
• Is 128.00

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A look back at 2008
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• Wet Spring Resulted in Poor Planting Conditions

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A Poor Start for Many Fields
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Phosphate Deficiency
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Nitrogen Application
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Uneven Fertilizer DistributionIn A Strip Till
System
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Uneven Potassium Distribution
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Potassium Stratification
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Uneven Fertilizer Distributionand tile line N
loss
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Looking Great in 08
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• Phosphate and potassium were injected at ½ the
  broadcast rate.

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• Anhydrous rates were automatically adjusted for
  change in rate of injected ammonium phosphate.

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• Anhydrous rates were automatically changed for
  previous crops of corn and soybeans.

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• Phosphate and potassium rates were independently
  changed based on grid soil sampling.

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Fungicides on Corn
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• Eyespot Leaf Disease

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Fungicide Treatment
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• Fungicides on Corn
• For control of
• Anthracnose
• Eyespot
• Rust
• Gray Leaf Spot

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Headline on Corn - 2006
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Guidelines for use of Nitrogen-Fertilizer (Corn)
University of Minnesota Nitrogen Suggestions
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Nitrogen Normal Minus 50
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Nitrogen Manure Plus 50
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Goodhue County K Plots 1997 K soil
test preplant 65 ppm Joy silt loam Planted
4/28/97 30,000 seeds/A 3 reps Tim Wagar,
Area Extension Educator Rate
Yield bu/A Check _ 0 lbs K20/A 136.5 a Brdcst
_ 105 lbs K20/A 157.7 b Starter _ 42 lbs
K20/A 180.3 c (100 lbs/A, 5-14-42) LSD
(0.10) 11.02 CV- 4.0
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"K-Profile" Fertility Stratification
History of Moldboard Plow
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"K-Profile" Fertility Stratification
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Potassium Deficiency (corn)
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Phosphate Soil Test Levels
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Weed control may never be easier than it is now.
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Glyphosate - Inexpensive -
Convenient - Spray Corn. Move to soybeans
and back to corn. - Controls all weeds.
Controls all weeds?
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Glyphosate Needs Help
- Difficult to control weeds - Dandelion
- Weeds that are potentially resistant to
Glyphosate.
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Uniform Emergence
- Firm soils at planting - Depth of planting -
Soil to seed contact - Residue management -
Tillage in same direction as planting - Be
prepared to assist Emergence
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Deep Tillage Trial Summary Burns Fuel but Seldom
Increases Yield
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