تأثير بعض نظم الحراثة في بعض مؤشرات الأداء للوحدة الميكنية و إنتاج محصول الذره الصفراء الزيتي

Abstract EN

Field experiment was conducted at the Agricultural field/ College of Agric.

, University of Baghdad, Al-Jadiriyah in 2017 in sandy loam soil to evaluate the effect of tillage sytems on some machinary unit performance indicatars and oil corn yield.

New Holland TD80 was used in this study.

Three depths included 0-10, 10-20 and 20-30 cm represented main plot and three types of plows included moldboard, chisel and sweep plow with disk harrows for pulrieation represented sub plot were used in this study.

Slippage percentage, practical productivity, fuel consumption, bulk density, Plant height and corn yield were study.

Split plot design in Randomized Complete block design with three replication was used in this study under Least singnification differences at 0.05 probability (LSD 0.05) was used to compare the mean of treatments.

The results can be summarized as fallow: The 0-10 cm depth gave the lowest slippage percentage (10.72 % ), higher practical productivity (0.64 ha hr-1), lowest fuel consumption (8.73 L hr-1), lowest bulk density (1.25 gm cm-3).

While depth 20-30 cm gave the highest Plant height (170.26 cm), the highest corn yield (3.56 ton ha-1).

On the other hand sweep plow gave the lowest slippage percentage (10.36% ), the lowest fuel consumption (8.72 L hr-1), lowest bulk density (1.26 g cm-3), the highest plant height (172.83 cm), the highest corn yield (3.54 ton ha-1).

Chisel plow gave the highest practical productivity (0.63 ha hr-1).

As for the significant of overlap between the depth 0-10 cm and sweep plow it has impacted significantly in all studied traits.