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Comparative Study on Self Propelled Reapers for Harvesting Rice with Different Reaper Heads

MA Zami
Principal Scientific Office and Head
Workshop Machinery and Maintenance Division, Bangladesh Rice Research Institute (BRRI), Gazipur-1701, Bangladesh

BK Biswas
Senior Scientific Officer
Workshop Machinery and Maintenance Division, Bangladesh Rice Research Institute (BRRI), Gazipur-1701, Bangladesh

Md Altaf Hossain
Senior Scientific Officer
Workshop Machinery and Maintenance Division, Bangladesh Rice Research Institute (BRRI), Gazipur-1701, Bangladesh

MA Hossain
Scientific Officer
Workshop Machinery and Maintenance Division, Bangladesh Rice Research Institute (BRRI), Gazipur-1701, Bangladesh

Abstract/ Executive Summary:

Workshop Machinery and Maintenance Division of BRRI has developed self-propelled reaper with different reaper heads for harvesting rice in the research workshop of BRRI. The reaper heads were 1.0 and 1.2-meter. The gearbox was attached to the chassis of the reaper and tested for 1.0 and 1.2-meter reapers. The effective field capacities of 1.0 and 1.2-meter reapers were 0.251 and 0.31 ha/hr, respectively for harvesting rice. On the other hand, field efficiency of 1.0 and 1.2-meter reapers was 71.7 and 73.8%, respectively for rice.

Keywords: BRRI Reaper, Manual harvesting, Performance, Paddy fields

Location: Bangladesh Rice Research Institute (BRRI), Gazipur-1701, Bangladesh

Start Date:

End Date:

Program Area: Farm Mechanization

Commodity: Performance evaluation

Objectives:

To compare the performances of different reaper heads for harvesting rice

Methodology:

A self-propelled reaper for rice was designed and developed in the research workshop of BRRI. The gearbox was mounted to the chassis of the reaper and tested for 1.0 and 1.2-meter reapers. In this study, both the reaper heads were tested for harvesting rice in BRRI farm to evaluate the performances and were compared with each other.

Source of Information: Report of Workshop Machinery and Maintenance Division, BRRI, 2008-9

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Performance and efficiency of different the reaper heads:

Fuel consumption of 1.0 and 1.2 meter reapers were 3.03 and 2.66 l/ha, respectively for harvesting rice.
The effective field capacities of 1.0 and 1.2 meter reapers were 0.251 and 0.31 ha/hr, respectively for harvesting rice.
Similarly, field efficiency of 1.0 and 1.2 meter reapers was 71.7 and 73.8%, respectively for rice.
Total grain losses of rice during harvesting by 1.0 and 1.2 meter reapers and manual harvesting were 2.87, 2.43 and 7.40%, respectively.

In 1.2 m reaper, the effective field capacity is higher and on the other hand fuel consumption, harvesting time and cost are lower than those of 1.0 m reaper and manual harvesting.

Knowledge Management: Report/Proceedings