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Performance of Drum Seeder on Boro Rice

B Karmakar
Scientific Officer
BRRI Rajshahi

MA Ali
Principal Scientific Officer
BRRI Rajshahi

Abstract/ Executive Summary:

Rice cultivation is going to face two major constraints like labor and water stress in Bangladesh. Because laborer availability in agricultural field decreasing day by day as it is comparatively hard work compared to other field and/or industry. So direct wet seeding could be an alternative of rice cultivation and escalating labour costs drive the search for alternative management methods to increase water productivity in rice cultivation. Direct seeded rice (DSR) has received much attention all over world as its low-water and input responsive. Among the crop establishment methods, grain yield was almost similar in Drum seeder (dense population) and transplanting. Grain yield was lower in Hand broadcasting and transplanting 40-day old seedling in the same day of seeding by Drum seeder and sparse population. Apparently, there was no variation between Drum seeding and conventional practice in respect of grain yield except sparsely seeding where the lower yield was obtained among the Drum seeding treatments. However, DWSR required more labor that associated with fine tuning land preparation with proper leveling and higher weed infestation.

Keywords: Direct wet seeding rice, Conventional transplanting, Hand broadcasting

Location: BRRI Rajshahi

Start Date: 01-11-2005

End Date: 31-05-2006

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

To evaluate the performance Drum seeder in direct wet direct seeded rice (DWSR)
To compare DWSR method along with conventional transplanting and Hand broadcasting practice.

Methodology:

The experiment was conducted at the BRRI Regional Station, Rajshahi during Boro 2005 in order to evaluate the performance Drum seeder for direct seeded comparing transplanting and Hand broadcasting in boro. The treatments were: T₁ = Dense population seeding by Drum seeder, T₂= Sparse population seeding by Drum seeder, T₃ = Paired row seeding by Drum seeder, T₅ = Conventional practice (Transplanting: 40 days old seedling in 20 cm x 20 cm spacing with 2-3 seedlings/hill), T₆= Farmer’s practice: 40 days old seedlings transplanted on the same day of Drum seeding. The variety was BRRI dhan28. Sprouted (2-3 mm) seeds were used and sown as per treatments on 02 December 2004. Factorial RCBD was followed with three replications. Fertilizers such as Urea, TSP, MP, Gypsum & Zinc sulfate @ 220, 120, 85, 60 & 10 kg/ha were applied. Unit plot size was 6.5 m x 4 m. Yield data was collected from 5 m² area from each plot.

Source of Information: Proceedings of the BRRI Annual Internal Review for 2004-2005

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Direct wet seeding rice method found not suitable and feasible in Bangladesh context as because it occupied main field long time that at least 30-45 days more than the transplanting practice. In that time more laborer and money need to maintain crop in field especially for irrigation and weeding. Moreover, it reduces cropping intensity and increases cost of production without any yield advantage.

Knowledge Management: Report/Proceedings