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This article in AJ

  1. Vol. 54 No. 1, p. 29-34

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Soil Compaction in the Field and Corn Growth1

  1. R. E. Phillips and
  2. Don Kirkham2



Soil compaction markedly reduced growth and yield of corn. Mechanical impedance, as measured by bulk density and needle penetration, was the physical property most highly correlated with the reduction in growth and yield of the corn at each of two fertility levels.

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