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Design and Development of Manually Operated Fertilizer (usg/umg) Applicator

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

Dr. Md. Syedul Islam
Chief Scientific Officer
Farm Machinery and Postharvest Technology Division, Bangladesh Rice Research Institute, Gazipur-1701.

Dr. Md. Durrul Huda
Senior Scientific Officer
Farm Machinery and Postharvest Technology Division, Bangladesh Rice Research Institute, Gazipur-1701.

Md. Golam Kibria Bhuiyan
Senior Scientific Officer
Farm Machinery and Postharvest Technology Division, Bangladesh Rice Research Institute, Gazipur-1701.

Bidhan Chandra Nath
Senior Scientific Officer
Farm Machinery and Postharvest Technology Division, Bangladesh Rice Research Institute, Gazipur-1701.

Abstract/ Executive Summary:

BRRI was developed a manually operated USG applicator to place the USG granules in the field mechanically. The applicator was designed for two rows operation in the field considering a spacing of 20 cm x 20 cm, depth of placement 6-8 cm and ease of operation. The final weight of the applicator was around 10 kg that is suitable to operate in different types of land. During laboratory test, more than 98% dispensing efficiency was found. Considering walking speed 1.75 km/h, the design capacity of the applicator was around 35 decimal per hour. In the field, average field capacity was found about 31 decimal per hour. Average manual application capacity was found around 4-5 decimal/h during field test. The average placement distance between granules in the field was found 39.5 cm during field operation although design distance was considered 40 cm. However, the depth of granules placement was observed 6.6 cm in the field. Considering the 2.7 gm size granules (recommended for Boro), the calculated amount of fertilizer was 168 kg/ha. During field trials of the applicator, around 174 kg/ha granules was dispensed in the field. For harvesting the benefits, this technology needs to disseminate to the end users.

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

Location: Gazipur

Start Date: 01-07-2008

End Date: 30-06-2009

Program Area: Farm Mechanization

Commodity: Farm machineries

Objectives:

To place the USG/UMG mechanically between rows in the rice field effectively, easily and rapidly

Methodology:

• 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. Available size of urea granule • Based on size and weight, urea granules were different • 0.9 gm wt. (width: 15 mm and height:11 mm ) granule known as urea supper granule (USG) • 1.8 gm (width: 18 mm and height:13 mm ) and 2.7 gm wt (width: 20 mm and height:14 mm ) granule known as urea mega granule (UMG) Constraint of the granules Shape of the granule is important to design the metering device. Because of oval shape of the granule with barb that makes bridge in the tank.

Source of Information: BRRI Annual Research Review 2008-09

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

A manually operated USG applicator was designed considering line to line and plant to plant spacing of 20 cm and fabricated in the FMPHT divisional research workshop for double rows operation in rice field. The field capacity of the applicator was found around 31 decimal per hour whereas manual application capacity was 4-5 decimal per hour based on labor skill. The applicator was found suitable to place the USG/UMG at 6-8 cm depth in line transplanted rice field. Farmers will able to save 6-7 man-days per hector as well as urea fertilizer. One can take it as a business for the demand period. For the purpose of adopting USG/UMG application in farmers’ field, this technology needs to be disseminated to the end users.

Knowledge Management: Report/Proceedings