University of Khartoum

Tractor Performance as Affected by Tilt Angle of Disc Plough under Clay Soil

Tractor Performance as Affected by Tilt Angle of Disc Plough under Clay Soil

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Title: Tractor Performance as Affected by Tilt Angle of Disc Plough under Clay Soil
Author: Abdalla, Omer A.; Hamid, Amina I.; El Naim, Ahmed M.; Zaied, Moayad B.
Abstract: The three-bottom, fully mounted disc plough is the most commonly used primary tillage implement in the small scale farming in central and northern Sudan. In the disc plough, two angles (tilt and disc angles) affect tractor performance and ploughing quality. This research was conducted at the demonstration farm of the Faculty of Agriculture, University of Khartoum during November and December 2014 to study the effect of three tilt angles (15o, 20o and 25o) on disc plough field performance variables, namely, tractor rear wheel slippage, fuel consumption rate, draft force, power requirement, field capacity and field efficiency in clay soil. Randomized complete block design was used. Tractor forward speed and disc angle were maintained at 6 km/h and 45o, respectively. The highest field capacity (0.32 ha/h) and efficiency (74.75%) were recorded for the tilt angle 20o as compared to 71% and 69% under the tilt angles 15o and 25o, respectively. Both tilt angles 15o and 20o recorded the highest values of slippage (14.2% and 12.5%, respectively) while tilt angle of 250 recorded the lowest value of slippage (9.5%). The highest value of fuel consumption rate was 2.83 l/fed and it was recorded by 250 tilt angle followed by 2.72 L / fed and 2.54 l/fed for tilt angles of 20oand 15o respectively. The highest value of draft was 9.125 kN and it was recorded 250 tilt angle while the lowest values were 8.38 kN and 8.68 kN and they were recorded by tilt angles of 15o and 20o respectively. The results showed that the highest value of power was 15.05 kW was demonstrated by 25o tilt angle followed by 14.47 kW for the tilt angle of 20o, while the tilt angle of 15o recorded the lowest power (13.9 kW). It can be concluded that the tilt angle of 20o is the most appropriate for ploughing with the disc plough as it recorded the highest field capacity, field efficiency and low draft, moreover, such angle recorded moderate value of the required power, rear wheel slippage and fuel consumption.
URI: http://khartoumspace.uofk.edu/123456789/24623


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