01511nam a2200337 a 450000100080000000500110000800800410001902000180006010000180007824500340009625000100013026000240014030000100016452007080017465000110088265000150089365000160090865000130092465300280093765300270096565300190099265300270101165300180103865300200105665300190107665300150109565300130111065300170112370000180114070000150115813612771996-07-17       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 multipowred 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, Corn picking and shelling, Cotton harvesting, Root crop harvesting, Fruit and vegetable harvesting and handling.  acotton  aharvesting  aAgricultura  aAlgodão  aAgricultural equipments  aAgricultural implement  aCultivo manual  aEquipamentos agricolas  aFertilizantes  aForage cropping  aForm machinery  aForrageira  aMaquinas  aSoil tillage1 aBARGER, E. L.1 aBAINER, R.