01418nam a2200289 a 450000100080000000500110000800800410001902000180006010000180007824500340009625000100013026000240014030000100016452007420017465000180091665000260093465000220096065000180098265000110100065300270101165300160103865300150105465300140106965300120108370000150109570000180111014477992004-08-03       1978    bl uuuu      00u1 u    #d  a0-87055-252-X1 aKEPNER, R. A.  aPrinciples of farm machinery.  a3.ed.  aWestport: Avic1978  a527p.  aResearch and development in farm machinery; Implement types, field capacities, and costs; Mechanical power transmission and power-take-off drives; Hydraulic power transmission and implement controls; Soil tillage and dynamics; Moldboard plows; Disk implements; Hitch systems and hitching tillage implements; Chisel-type and multipowered tillage implements; Crop planting; Row-crop cultivation, flaming, and thinning; Applying fertilizers and granular pesticides; Spraying and dusting; Hay harvesting: cutting, conditioning, and windrowing; Packaging and handling hay; Forage chopping and handling; Grain and seed harvesting; Corn picking and shelling; Cotton harvesting; Root crop harvesting; Fruit and vegetable harvesting and handling.  amechanization  aEquipamento agrícola  aMaquina Agrícola  aMecanização  aTrator  aAgricultural equipment  aFarm engine  aImplemento  aMachinery  aTractor1 aBAINER, R.1 aBARGER, E. L.