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A Self‐Leveling Cone Seedier for Experimental Plots 1
Author(s) -
Dewey W. G.,
Albrechetsen R. S.,
Merrill Jed
Publication year - 1979
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1979.0011183x001900060028x
Subject(s) - cone (formal languages) , row , seeder , sowing , terrain , biology , range (aeronautics) , drill , mathematics , geometry , agronomy , computer science , engineering , mechanical engineering , ecology , aerospace engineering , algorithm , database
A four‐row cone seeder was constructed with the objective of retaining the speed and efficiency of the cone distribution system while overcoming its deficiencies on uneven terrain. A self‐leveling mechanism was developed which utilizes mercury switches to activate small electric motors and screw‐jacks. A single‐cone unit with a spinnerdistributor for multiple‐row plots is interchangeable with a four‐cone unit for planting individual rows. Disc, deep furrow, and shallow openers are easily interchangeable, as are three types of press wheels. Row lengths ranging continuously from 1.5 to 30 m are possible. The drill performed very satisfactorily in planting small grain yield trials over a wide range of terrain types during the 1978 season.