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Field experiment conducted to measured Slippage, Effective field capacity, Field Efficiency,
Soil Volume Disturbed and Specific Productivity Tillage in silt clay loam soil with depth 18
cm in Baghdad- Iraq. Split – split plot design under randomized complete block design with
three replications using Least Significant Design 5 % was used. Three factor used in this
experiment included Two types of plows included Chisel and Disk plows which represented
main plot , Three Tires Inflation Pressure was second factor included 1.1 ,1.8 and 2.7 Bar,
and Three forward speeds of the tillage was third factor included 2.35 , 4.25 and 6.50 km/hr.
Result show chisel plow recorded best parameters performance