تأثير عدد الأسلحة و سرعة الحراثة في أداء المحراث الدوراني

Abstract EN

A factorial experiment was conducted with two factors in a field with two silty clay loam soil in south of Baghdad, the first factor was using two different rotavator plow in number of rotary blades on flanges, Portuguese rotavator Galucho which had (6) blades in one flanges and Japanese rotavator Kupota which had (4) blades in one flanges, the second factor was four speeds tractor 2.62, 5.10, 7.55, 9.23 km.hr-1 to compare performance two Rotavator under depth 12 cm and knowledge Slippage percentage, distance between beat blades, practical productivity, disturbed soil volume, percentage of the soil clods which have diameter less than 5 cm (clods/m-2) were measured in this study.

Randomized complete block design with three replications and Least Significant deference under probability 0.05 was used.

Results showed significant effect on Japanese Kupota Rotavator which recorded the highest practical productivity stood 0.7117 ha.hr-1, disturbed soil volume 854.1 m3.hr-1 and least slippage stood 3.94 %.

Portuguese rotavator Galucho recorded best percentage of the soil clods 96.19 % and distance between beat blades stood 0.106 m.

Speed tractor stood 9.23 km/hr was significant effect and record highest practical productivity stood 1.0876 hr.hr-1, disturbed soil volume stood 1256.2 m3.hr-1 and the best slippage stood 1.80%.