دراسة بعض المؤشرات الفنية و الاقتصادية للوحدة الميكنية باستخدام سرع مختلفة

Abstract EN

An Experiment was conducted in a field of the College of Agriculture /University of Baghdad in 2013 to study the effect of some technical and economical parameters for machinery unit combined implement and Massey Ferguson 650 (140 hp) by using different speed.

Three levels of tractor speeds included 4.258, 5.144 and 6.571 km/m which represents the main plots and two levels of irrigation installation Tubes systems included subsurface installation system and surface installation system(drip irrigation)represented sub plot’s study in this experiment included: disturbed soil volume, practical productivity, fuel consumption and economical parameters for machinery unit (tractor and combined implement were measured in this study.

Split plot design under randomized complete block design with three replications was used in this study.

The results were as follow: the combination between practical speed 6.571 km/h and surface installation system (drip irrigation) was superior in getting less of : economical parameters for machinery unit 54440DI/ha and rate of fuel consumption 20.48 L/ha and getting highest rate of: disturbed soil volume 3237.5 m³/ha and practical productivity for combined implement 1.29 ha/hr.

We recommend using combine implement Used for Tillage and Subsurface Irrigation Tubes Installation.