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Comparative Study on Self Propelled Reapers for Harvesting Rice and Wheat

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

BK Biswas
Senior Scientific Officer
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

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

Abstract/ Executive Summary:

This study was conducted in the BRRI research farm for harvesting rice and wheat with different reaper heads. The reaper was designed and developed by the Workshop Machinery and Maintenance Division and fabricated in BRRI research workshop. The reaper heads were 1.0 and 1.2-meter and were tested for harvesting rice and wheat. The effective field capacities of 1.0 and 1.2-meter reapers were 0.251 and 0.31 ha/hr, respectively for harvesting rice. The equivalent values for wheat were 0.246 and 0.32 ha/hr, respectively. Similarly, field efficiency of 1.0 and 1.2-meter reapers was 71.7 and 73.8%, respectively for rice. The equivalent values for wheat were 70.3 and 76.2%, respectively.

Keywords: BRRI reaper,Manual harvesting, Performance, Paddy fields and wheat fields

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

Start Date: 21-12-2005

End Date: 25-05-2010

Program Area: Farm Mechanization

Commodity: Performance evaluation

Objectives:

To compare the performances of different reaper heads for harvesting rice and wheat

Methodology:

Workshop Machinery and Maintenance Division has recently developed a BRRI self-propelled reaper for harvesting rice and wheat. It is easy to operate, time and cost effective and reduces human drudgery as well as post-harvest losses. 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 and wheat in BRRI farm to evaluate the performances and were compared with each other.

Source of Information: Report of Workshop Machinery and Maintenance Division, BRRI, 2008-2009

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Performance and Efficiency of the Reaper:

Fuel consumption of 1.0 and 1.2 meter reapers were 3.03 and 2.66 l/ha, respectively for rice. The equivalent values for wheat were 2.52 and 2.47 l/ha, respectively.
The effective field capacities of 1.0 and 1.2 meter reapers were 0.251 and 0.31 ha/hr, respectively for harvesting rice. The equivalent values for wheat were 0.246 and 0.32 ha/hr, respectively.
Similarly, field efficiency of 1.0 and 1.2 meter reapers was 71.7 and 73.8%, respectively for rice. The equivalent values for wheat were 70 and 76.2%, respectively.
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. The equivalent values for wheat were 2.5, 2.31 and 5.20%, 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. So harvesting with 1.2 m self-propelled reaper will be beneficial /profitable to the farmers.

Knowledge Management: Report/Proceedings