Continuous Monocropping.

A new study using a LARGE dataset has found for corn and soybean:

  • Analysis of 748,374 yield records showed a 4.3% yield penalty for continuous corn.
  • Corn yield penalties were more severe in areas with low moisture and low yields.
  • Continuous soybean showed a 10.3% yield penalty, worse in low-yielding years.
  • Corn yield penalties grew with up to 3 yr of continuous cropping, but not more.
  • Soybean penalties increased monotonically with number of years continuously cropped.

Continuous Corn and Soybean Yield Penalties across Hundreds of Thousands of Fields

 

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