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    • Row crop planting apparatus for mobile pipe span-and-tower irrigation systems 

      Lyle, William M.; Bordovsky, James P.; Butler, Mark A. (United States. Patent and Trademark OfficeTexas A&M University. Libraries, 1990-11-20)
      A field planting system for use in conjunction with large span and wheel tower irrigation apparatus to place seed in a field across a number of rows simultaneously. Seed is suspended uniformly in a gel solution and injected ...