Seed delivery apparatus, systems, and methods

摘要: Referring to the drawings, wherein like reference numerals designate identical or corresponding parts throughout several views, FIG. 1 illustrates a side elevation view of single row unit (10) conventional crop planter such as type disclosed in U.S. Patent No. 7,438,006, disclosure which is hereby incorporated herein its entirety by reference. As well known art, units are mounted spaced relation along length transverse toolbar (12) parallel linkage (14), comprised upper and lower arms (16, 18) pivotally at their forward ends rearward end frame (20).