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Potential for Sensor Based Systems in Corn-Sugar Beet Rotations

Potential for Sensor Based Systems in Corn-Sugar Beet Rotations. John A. Lamb Department of Soil, Water, and Climate University of Minnesota – St. Paul johnlamb@umn.edu. Southern Minnesota Sugar Beet Rotations. Current Sugar beet-soybean-corn 78% of acreage

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Potential for Sensor Based Systems in Corn-Sugar Beet Rotations

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  1. Potential for Sensor Based Systems in Corn-Sugar Beet Rotations John A. Lamb Department of Soil, Water, and Climate University of Minnesota – St. Paul johnlamb@umn.edu

  2. Southern Minnesota Sugar Beet Rotations • Current • Sugar beet-soybean-corn 78% of acreage • Future may include Sugar beet-corn-soybean-corn.. • Quality is job 1. • N is the key! • 2003 increased N management put $141 per acre in grower’s pockets. • Growers think they need a lot of N fertilizer to grow 200 bushel corn!

  3. Southern Minnesota Beet Sugar Cooperative Area

  4. Whole Rotation Soybean-Corn-Sugar beet • Year 1 • Located plots and grew soybean. • Year 2 • Apply N fertilizer at rates of 0, 120, and 200 pounds/acre to large plots. • Grew corn, harvest corn, and soil sampled for soil nitrate-N. • Year 3 • Apply N fertilizer at 6 rates to large plots. • Grow sugar beet for yield and quality.

  5. Whole Rotation Effects on Soil Nitrate-N (Soybean-Corn)

  6. Possible sensor uses • Better N management for corn preceding sugar beet in the rotation. • Less residual soil nitrate-N • Delineate management zones for deep soil sampling. • For corn and/or sugar beet production years.

  7. Southern Minnesota Sugar Beet Rotations • Future • Sugar beet-corn-soybean-corn • Soybean rust • Soybean cyst nematode • Soybean iron chlorosis • Sugar beet root diseases

  8. Whole Rotation: Sugar beet-corn • Year 1 • Grow sugar beet with five N rates in large plots. • Measure beet yield, beet quality, and soil nitrate-N • Year 2 • Grow corn • Apply four N rates with in the year 1 large plots • Measure corn yield and soil nitrate-N.

  9. Whole Rotation: Sugar beet-corn • This a project in progress. • Two locations established spring 2002, 2003, and 2004. • Example of one of 2002 locations.

  10. Whole Rotation EffectsBeet-Corn Maynard 2002

  11. Whole Rotation Effects on Soil Nitrate-N Beet-Corn Maynard

  12. Possible sensor uses • Better N management for corn following sugar beet in the rotation. • Sugar beet top N credit. • N rec prediction as soil nitrate test is useless.

  13. I’m out of steam!

  14. Whole Rotation EffectsBeet-Corn Olivia 2002

  15. Grain Yield: Corn following Sugar beet Olivia, MN 2003

  16. Chlorophyll: Corn following Sugar beet Olivia, MN 2003

  17. Whole Rotation Effects on Soil Nitrate-N Beet-Corn Olivia

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