The Collaborative International Dictionary of English v.0.48:

Intercrop \In"ter*crop`\, v. t. & i. [imp. & p. p. -cropped;
   p. pr. & vb. n. -cropping.] (Agric.)
   To cultivate by planting simultaneous crops in alternate
   rows; as, to intercrop an orchard. Also, to use for catch
   crops at seasons when the ground is not covered by crops of
   the regular rotation.
   [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

Crop \Crop\, v. t. [imp. & p. p. Cropped (kr[o^]pt); p. pr. &
   vb. n. Cropping.]
   1. To cut off the tops or tips of; to bite or pull off; to
      browse; to pluck; to mow; to reap.
      [1913 Webster]

            I will crop off from the top of his young twigs a
            tender one.                           --Ezek. xvii.
                                                  22.
      [1913 Webster]

   2. Fig.: To cut off, as if in harvest.
      [1913 Webster]

            Death . . . .crops the growing boys. --Creech.
      [1913 Webster]

   3. To cause to bear a crop; as, to crop a field.
      [1913 Webster]

   4. to cut off an unnecessary portion at the edges; -- of
      photographs and other two-dimensional images; as, to crop
      her photograph up to the shoulders.
      [PJC]