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The study was carried out at field agriculture in Baghdad–Iraq in 2015. For purpose evaluated the
performance the selected implements tillage, suitable tire pressure and speed tractor under silt clay
loam to measured Effective field capacity, Actual Time for plowing One Donam ( hr), Appearance
Tillage ( number of clods > 10 cm), Fuel consumption measure in two unit (L/Donam and L/hr) and
Machinery Unit Energy Requirement ( kw.hr / Donam). 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 fa
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