EVALUATION AND COMPARISON OF RICE LOSSES IN VARIOUS HARVESTING METHODS

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ALIZADEH M.R.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Paper Information

Journal: JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH Year:2003 | Volume:3 | Issue:13 Page(s): 1-14

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Information Journal Paper

Title

EVALUATION AND COMPARISON OF RICE LOSSES IN VARIOUS HARVESTING METHODS

Author(s)

ALIZADEH M.R. | Issue Writer Certificate

Keywords

RICE HARVESTINGQ4

RICE MOWER MACHINEQ4

RICE HARVESTING LOSSESQ4

RICE MECHANIZATIONQ4

Abstract

Timely harvesting of paddy is very important in minimizing field losses. Since this operation is labour consuming and expensive, steps have been taken to evaluate and develope an appropriate harvesting method for Guilan. In this study, a locally -manufactured power tiller-operated reaper and self-propelled reaper were field tested and compared to manual harvesting method. The results shown that, Grain losses significantly differed in reaping and conveying stages. The grain losses for manual harvesting was minimum (2.09%). The average field loss for mechanical harvesting was 2.8%. The actual field capacity of the self-propelled reaper was highest (0.294 ha/h) compared to 0.238 ha/h for power tiller-operated reaper and 0.0078 ha/h for manual harvesting. Labour input in mechanical reaping was 6.6 man-h/ha compared to 118.4 man-h/ha in manual operation. The cost of mechanical harvesting was 53% lower than manual harvesting. The average harvesting costs per ha are Rls. 1041875, Rls.481133 and Rls.483462 for manual harvesting, self-propelled and power tiller-operated reapers, respectively.

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