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Evaluation of Grain Losses as Affected by Combine Forward Speed

Author

Listed:
  • R.Bawatharani

    (Department of Agricultural Engineering, Faculty of Agriculture, Eastern University, SRI LANKA)

  • D.N.Jayatissa

    (Department of Agricultural Engineering, Faculty of Agriculture, Eastern University, SRI LANKA)

Abstract

Header losses were evaluated at forward speeds 4.24, 2.95 and 2.04 km/h in combine A and 3.81, 2.73 and 1.9 km/h in combine B. Header grain losses initially decreased with an increasing forward speed from 2.04 km/h to 2.95 km/h but increased with an increase of the speed from 2.95 to 4.24 km/h in combine A. Header grain losses were also increased due to the increase of the speed from 2.73 to 3.81 km/h from combine B. Forward speed of 2.95 km/h in combine A and 2.73 km/h in combine B resulted in lower header losses of 38.7 and 45.8 kg/ha, respectively. The increasing forward speed of combine A from 2.01 to 4.24 km/h increased the effective field capacity from 0.245 to 0.38 ha/h. Similarly, in combine B forward speeds from 1.9 to 3.81 km/h increased effective field capacity from 0.175 to 0.197 ha/h. Increasing forward speed in combine A from 2.01 to 4.24 km/h decreased the field efficiency from 60.9% to 49.3%, whereas, increasing forward speed from 1.9 to 3.81 km/h decreased the field efficiency from 50.8% to 30.6% in combine B.

Suggested Citation

  • R.Bawatharani & D.N.Jayatissa, 2023. "Evaluation of Grain Losses as Affected by Combine Forward Speed," International Journal of Research and Innovation in Applied Science, International Journal of Research and Innovation in Applied Science (IJRIAS), vol. 8(2), pages 68-72, February.
    • Handle: RePEc:bjf:journl:v:8:y:2023:i:2:p:68-72
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