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Performance Evaluation of the BRRI Developed Usg Applicator in Different Locations of Bangladesh

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

Dr. Md. Syedul Islam, Dr. Md. Durrul Huda, Bidhan Chandra Nath
Farm Machinery and Postharvest Technology Division Bangladesh Rice Research Institute Gazipur-1701

Abstract/ Executive Summary:

The applicator performance was evaluated in different six locations of the country during Aman, 2010 season. Application capacity, machine maneuverability, drudgery, uniformity of placing, depth of placing, covering of the dispensed granule was observed. During field operation of the applicator average walking speed of the operator was found to be 3.72 km/hr and field capacity was about 35 decimal/hr whereas manual USG application capacity was found to be 4.5 decimal/hr. Average depth of placement of the granule was around 6.32 cm. Although yield and yield contributing character was almost similar in all the treatments but USG gave around 0.5 ton/ha yield advantage than prilled urea resulted of higher productive tiller as well as higher grains/m2.

Keywords: USG Aplicator, Walking speed, Field capacity, Placement, Granule, Prilled urea, Drudgery

Location: BRRI research farm, Gazipur and BRRI region station of Kushtia, Rajshahi, Rangpur, Comilla and one in farmer’s field of Netrakona

Start Date: 01-01-2010

End Date: 30-06-2011

Program Area: Farm Mechanization

Commodity: Farm machineries

Objectives:

1.To observe the performance of BRRI USG applicator in transplanted rice fields.

2.To identify the problems of field operation for improvement.

Methodology:

BRRI USG applicator (fixed model), USG and prilled urea, scale, rope, tape, stopwatch, calculator, wight balance etc were used during the study. • Varieties : BRRI dhan49 and BRRI dhan33 • Seedling age : 35 to 40 days at transplanting time • Spacing: 20?20 cm • Size of USG = 1.8 gm (mega size) • Date of USG application : After 10-12 days of transplanting During performance study in different locations, the following treatments were applied: • T₁ = USG application in the field by USG applicator • T₂= USG application in the field manually • T₃ = Prilled urea application by hand broadcasting Design: RCBD Fertilizer does in terms of USG was same for T₁ and T₂. Prilled urea was broadcasted in T₃ by hand on the basis of BRRI recommendation dose. Others fertilizer and management practices was the same for all treatments. Data were collected: • Time required to apply urea in the field (hr/ha) for all treatments • Capacity of BRRI USG applicator and manual application of USG • Plant height and tiller no at ATS, MTS and MS • Uniformity of the plants height • Yield and yield components

Source of Information: BRRI Annual Research Review 2010-11

Article Link (Online Journal):

Funding Source:

1. World Bank	Budget:
2. Bangladesh Agricultural Research Council	Budget:

Total Budget (Tk.) :

Achievement/Findings:

BRRI USG applicator was modified to reduce the weight and uniform the collection and dispensing mechanism of the granules with minimum drudgery. The weight of the modified version is about 10 kg. The applicator performance was evaluated in different six locations of the country. During field trials, average field capacity of the applicator was found around 35 decimal/hr whereas manual application capacity was 5 decimal/hr. Although yield and yield contributing character was almost similar in all the treatments but USG gave around 0.5 ton/ha yield advantage than prilled urea resulted of higher productive tiller as well as higher grains/m2.

Knowledge Management: Report/Proceedings