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Improvement of BRRI Usg Applicator

Md. Anwar Hossen
Senior Scientific Officer
Farm Machinery and Postharvest Technology Division, Bangladesh Rice Research Institute, Gazipur-1701

Dr. Md. Durrul Huda
Principal Scientific Officer
Farm Machinery and Postharvest Technology Division, Bangladesh Rice Research InstituteGazipur-1701

Dr. Md. Syedul Islam
Director General
Bangladesh Rice Research Institute, Gazipur-1701

Abstract/ Executive Summary:

BRRI USG Applicator was designed as fixed type considering line to line spacing of 20 x 20 cm for double rows operation. BRRI USG applicator was re-designed again as adjustable type considering line to line and plant to plant spacing of 18 x 20 cm, 20 x 20 cm and 22 x 20 cm. Adjustable mechanism of the re-designed applicator was also modified. Initially it was nut-bolt type. Now it was slot and thumb nut-bolt type. Because of adding this mechanism, farmers could easily adjust the row spacing within short time (2-3 minutes). Design of the drive wheel and skid of the applicator was also modified for plastic materials and converted from metallic to plastic one. Because of plastic conversion, total weight of the Applicator is reduced from 10 kg to 7.5 kg. The field capacity of the modified applicator was 32 decimal/hr that was quit similar with previous applicator. Because of thumb nut-bolt arrangement, adjustable mechanism become very simple and minimum time is required for adjusting in field level.

Keywords: USG, Applicator, Rice, Plant spacing, Field capacity

Location: BRRI Research workshop, Gazipur

Start Date: 00-07-2011

End Date: 00-06-2012

Program Area: Farm Mechanization

Commodity: Farm machineries, Farm machineries

Objectives:

• To modify the adjustable and covering mechanism of BRRI USG Applicator. • To re-design the drive wheel and skid for plastic materials

Methodology:

For development: • MS sheet, flat bar, angle bar, shaft bar, GI pipe, Nuts and Bolts and Granular urea • Design the applicator using AutoCAD Program and a Prototype was fabricated in the FMPHT divisional research workshop. Design considerations of the applicator Improvement was done on the adjusting mechanism of the applicator. It was designed using AutoCAD Program and Prototypes was fabricated in FMPHT divisional research workshop. During design, the following criteria were collected: • Ease of adjusting • Ease of operations • Minimum time of adjusting Skid, covering mechanism and drive wheel of the USG Applicator was re-designed for plastic materials and converted from metallic to plastic one. AutoCAD Program was used to design the Skid and drive wheel. During design, the following criteria were collected: • Enough strength for muddy soil • Ease of operations • Properly cover the dispensing granules Data was collected during farmers' field trials • USG/UMG dispensing efficiency (%) • Depth of placement (cm) • Walking speed (km/hr) • Field capacity (ha/hr) Performance test of the applicator The fabricated applicator was tested using urea mega granules (2.7 gm) theoretically and practically in the research workshop and BRRI research field to evaluate the machine primarily. During test, the following data were collected: • USG/UMG dispensing efficiency (%) • Accuracy of placement between rows (%) • Depth of placement (cm) • Walking speed (km/h) • Field capacity (ha/h)

Source of Information: Proceedings of the BRRI Annual Internal Review for 2011-2012, BRRI, Gazipur-1701, Bangladesh

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

BRRI USG applicator was modified considering line to line and plant to plant spacing of 18 x 20 cm, 20 x 20 cm and 22 x 20 cm and drive wheel and skid was made by plastic materials. The field capacity of the modified applicator was 32 decimal/hr that was quit similar with previous applicator. Because of thumb nut-bolt arrangement, adjustable mechanism become very simple and minimum time was required for adjusting in field level.

Knowledge Management: Report/Proceedings