Effect of Ballast and Tyre Inflation Pressure on the Performance of Agricultural Tractor for Primary Tillage Operations in Sandy Loam Soil
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Date
2012
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Publisher
MPUAT, Udaipur
Abstract
Agriculture continues to remain a significant sector of the Indian economy. It has been benefited considerably from the wide scale use of tractors and associated implements. The importance of tractor lies mainly in the improvement of soil cultivation and transport in the field of agriculture. The more draft power is required for primary tillage operations. It is well known that among many tractors that tractor ballast and inflation pressure individually and in combination affect the tractor performance in terms of fuel consumption, drawbar force, slippage, field capacity etc.
Keeping this in view various tests were conducted at instructional farm having a sandy loam soil at College of Technology and Engineering, Udaipur, Rajasthan. Tillage operations were performed using selected 55 hp tractor with M.B plough and Disc plough at four different combinations of front and rear ballast conditions (i.e. no ballast, 90 daN at front, 90 daN at front and 200 daN at rear, 200 daN at rear) and four different inflation pressure combinations in front and rear tyres (i.e. 90 kPa at rear and 140 kPa at front, 90 kPa at rear and 200 kPa at front, 130 kPa at rear and 140 kPa at front, and 130 kPa at rear and 200 kPa at front). Slip, tractive efficiency, field capacity, field efficiency and fuel consumption were calculated for each combinations of ballast and tyre inflation pressure and suitable combinations were recommended for maximizing tractor implement performance.
For maximizing the performance of a agricultural tractor in sandy loam soil for primary tillage operations at different ballast and inflation pressure combinations. It was found that the 200 daN rear ballast condition and 130 kPa at rear, 200 kPa at front tyre inflation pressure gave maximum tractive efficiency 72.43 per cent and 71.27 per cent, maximum field efficiency 88.30 per cent and 82.00 per cent, maximum effective field capacity 0.173 ha/h and 0.183 ha/h for M B plough and Disc plough respectively. It also gave the minimum slip of 10 per cent and 13.04 per cent, minimum fuel consumption 22.53 lit/ha (3.9 lit/h) and 22.87 lit/ha (4.2 lit/h) for M B plough and Disc plough respectively. The suitable combination of 200 daN at rear axle ballast and 130 kPa at rear, 200 kPa at front tyre inflation pressure found the better tractor performance in sandy loam soil for primary tillage operations.
Description
Pressure on the Performance of Agricultural Tractor for Primary Tillage Operations in Sandy Loam Soil
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Citation
Jadhav