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IJSTR >> Volume 7 - Issue 8, August 2018 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Effects Of Depth And Speed On Power Requirements For Disc And Mouldboard Ploughs In Silt Loam Soils

[Full Text]



Joseph Odero Alele, Godfrey M.N Ngunjiri, Musa R. Njue



Depth, Draft, Draught power, Dynamometer, Net draft, Plough, Speed, Tillage, Towed force



Effects of tillage depth and forward speed on draught power of primary tillage implements were studied using a pull dynamometer in silt loam soil. The implements used were a standard 2-bottom mouldboard plough and a 3-bottom disc plough. Tillage depths of 6.5 cm, 12.5 cm and 22.5 cm and speeds of 1.3 m/s, 2.3 m/s and 3.0 m/s were used. The effects of the treatments were studied using randomized blocks. There was significant increase in draught power with increase in tillage depth and forward speed at all the levels of the treatments tested for both the ploughs used. It was also noted that the draught power for mouldboard plough was higher than that in the disc plough at all levels of the parameters tested. Power requirement for mouldboard plough changed from 4.416 kW to 7.029 kW when tillage depth was varied from 6.5 cm to 22.5 cm. This results into an increase of 0.163 kW per unit change in depth of tillage. For the case of disc plough it increased from 3.344 kW to 6.404 kW which is equivalent to an increase of 0.191 kW. When speed was increased from 1.3 km/hr. to 3 km/hr. for disc plough power requirement increased from 2.911 kW to 7.048 kW resulting into an average change of 2.434 kW for the corresponding change in speed. While for the mouldboard plough the change was 3.12 kW within the same range.



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