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Where is the Profit? Corn on Corn vs Corn -Soybeans. SEIARA Annual Meeting March 4, 2004. Corn on Corn vs. Corn on Soybeans; General Considerations. Rotation effects on yields Rotation effects on costs of production, especially insecticides and N Market considerations

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Where is the profit corn on corn vs corn soybeans

Where is the Profit? Corn on Corn vs Corn -Soybeans

SEIARA Annual Meeting

March 4, 2004


Corn on corn vs corn on soybeans general considerations
Corn on Corn vs. Corn on Soybeans; General Considerations

  • Rotation effects on yields

  • Rotation effects on costs of production, especially insecticides and N

  • Market considerations

  • Effects on pest cycles

  • Effects of the government programs


Continuous corn and corn soybean tillage study
Continuous Corn and Corn-Soybean Tillage Study

  • Started in 1990

  • Two soil types

    • Kalona

    • Nira

  • Three tillage systems

    • No-Till

    • Ridge/Alternative

    • Chisel Plow-Disk


Corn on corn vs corn on soybeans long term field studies
Corn on Corn vs. Corn on Soybeans; Long Term Field Studies

  • Rotation fertility studies from 1979

  • Rotations: CC, CSb, CCSb, CCCSb, Sb

  • 4 N levels: 0, 80, 160, 240

  • Data from Ken Peckinovsky and Antonio Mallarino


Conclusions
Conclusions

  • Corn yields increase for corn following any other crop

  • Corn/Soybean is the most profitable rotation with CCSb second under normal conditions

  • Significant pest pressure with more severe impact on soybean yields will influence the results

  • Market prices influence most profitable rotation but C/Sb still is most profitable


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