Consider a 5-bottom 46cm semi-mounted mould board plough, pulled at 6.5km/h by a wheeled tractor. The...

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Consider a 5-bottom 46cm semi-mounted mould board plough, pulled at 6.5km/h by a wheeled tractor. The average draft of plough is 30kN, when ploughing to a depth of 25cm. For an efficiency of 80% determine the; i) 11) 111) iv) v) Specific draft (kN/m) 52.2/2N/m2 Effective field capacity = 1.196 Ha/h EFCa = SWn 10 Actual drawbar power required. 54.2kW EFCm= SWYn 10 Y=crop yield (t/ha) Maximum available PTO power Total (fixed and variable) costs of ploughing/hr vi) Total cost of ploughing a hectare of land Consider a 5-bottom 46cm semi-mounted mould board plough, pulled at 6.5km/h by a wheeled tractor. The average draft of plough is 30kN, when ploughing to a depth of 25cm. For an efficiency of 80% determine the; i) 11) 111) iv) v) Specific draft (kN/m) 52.2/2N/m2 Effective field capacity = 1.196 Ha/h EFCa = SWn 10 Actual drawbar power required. 54.2kW EFCm= SWYn 10 Y=crop yield (t/ha) Maximum available PTO power Total (fixed and variable) costs of ploughing/hr vi) Total cost of ploughing a hectare of land

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