Development of a reduced tillage planter for the semi-arid Great Plains region

Herron, Maynard M.2015-12-312015-12-311978http://hdl.handle.net/2097/26874Call number: LD2668 .T4 1978 H48Planters (Agricultural machinery)Agricultural machinery.Agricultural implements.Development of a reduced tillage planter for the semi-arid Great Plains regionTextMasters theses