EFFECT OF VARIANT SEEDING DEPTHS WITH TWO TYPES OF HARROW IN SOME PERFORMANCE INDICATOR OF SEEDER (STEGSTED

F. M. Al-Makhul, F.

	EFFECT OF VARIANT SEEDING DEPTHS WITH TWO TYPES OF HARROW IN SOME PERFORMANCE INDICATOR OF SEEDER (STEGSTED
IRAQ JOURNAL OF AGRICULTURE
Article 1, Volume 5, Issue 16, 2011, Pages 0-0
Author
F. F. M. Al-Makhul
Abstract
An experiment was conducted at the experimental field of the College of Agriculture – University of Baghdad in Abu-Ghraib in a silty –clay soil , to study the effect of Harrow type and seeding depth on slippage percentage , effective field capacity, field efficiency, fuel consumption, total operation cost of machinery unit (Tractor with seed drill) and machinery unit energy requirement. The experiment consist of two type of Harrow’s included Rotary Harrow and spring spike tooth caltivator with New Holland tractor and (Stegsted) drill seeder. Treatments was laid out using split-plot under randomized complete block design with three replication. The study consist of two factors: first factor was Harrow type which represented main plot’s, second factor was drill seeding depth which represented subplot. The result indicated that drill seeder with spring spike tooth cultivators showed significant superiority in comparison with the drill seeder with rotary Harrow in recording lower slippage percentage (8.452%), higher value effective field capacity (0.823 ha/hr),higher value of field efficiency (68.128%), lower value of fuel consumption (10.194 L/ha), lower total operation coast of machinery unit (18322 ID /ha) and lower value of machinery unit Energy requirement (36.87 Kw.hr/ha). First seeding depth significant superiority in comparison with other seeding depths in recording lower value of slippage (4.639%), higher value of effective field capacity (0.865 hr/ha), higher value of field efficiency (71.715%), lower value of fuel consumption (8.381 L/ha), lower value of total operation coast of machinery unit (16721 ID/ha) and lower value of machinery unit energy requirement (30.35 kw.hr/ha). There was significant interaction between harrows type and seeding depth for all parameters, whereas the seeding depth on (3 cm) with harrwing in spring spike tooth harrows in recording lower value of slippage (3.631%), higher value of effective field capacity (0.880 hr/ha), higher value of field efficiency (73.118%), lower value of fuel consumption (6.749 L/ha), lower value of total operation coast of machinery unit (15640 ID/ha) and lower value of machinery unit energy requirement (24.55 kw.hr/ha).

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