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A Comparative Study on the Crop Establishment Technologies for Lowland Paddy in Bangladesh: Transplanting Vs. Wet Seeding

Md. Syedul Islam
Ph.D Student
Faculty of Engineering, Univerity Putra Malaysia 43400, Serdang, Malaysia

M.A.Baqui
Head, FMPHT Division
Bangladesh Rice Research Institute Gazipur-1701, Bangladesh.

Mohamed Bin Daud
Senior Lecturer
Faculty of Engineering, Univerity Putra Malaysia 43400, Serdang, Malaysia.

Mohd Amin Mohd Soom
Associate Professor
Faculty of Engineering, Univerity Putra Malaysia 43400, Serdang, Malaysia.

Desa Ahmad
Associate Professor
Faculty of Engineering, Univerity Putra Malaysia 43400, Serdang, Malaysia.

Abstract/ Executive Summary:

Experiments were conducted to identify the advantages and disadvantages of the existing crop establishment techniques for the cultivation of lowland paddy in Bangladesh. The work rate of random seeding by hand was nearly 100 times faster than that of hand transplanting. However, the economic analyzes revealed that hand transplanting can earn approximately 30 US dollar net profit per hectare over hand seeding method; and machine transplanting can earn about 27 US dollar per hectare net profit compared to machine seeding method. Machine transplanting can earn 13 US dollar net profit per hectare compared to hand transplanting while machine seeding can earn about 53 US dollar net profit per hectare compared to hand seeding method.

Keywords: Lowland paddy, Transplanting, Seeding, Performance

Location: Bangladesh Rice Research Institute, Gazipur-1701

Start Date:

End Date:

Program Area: Farm Mechanization

Commodity: Planter

Objectives:

To identify the advantages and limitations of the existing crop growing techniques for lowland paddy
To determine the field performances of different crop establishment techniques
To compare the economics of transplanting and wet seeding methods of rice production

Methodology:

A manually operated transplanter and a drum type seeder for lowland paddy were imported from the International Rice Research Institute (IRRI) by the Bangladesh Rice Research Institute (BRRI) in Gazipur in Bangladesh. Both machines were modified in order to adapt them to local conditions. Two experiments viz. (a) experiment I for seedling transplanting; and (b) experiment II for wet seeding were conducted at the silty clay loam soil of the BRRI farm. Experimental Procedure: Before the field test, the transplanter and drum seeder were tested in the laboratory in order to confirm the workability of all the functional components. Two experiments were conducted in the adjacent fields. The paddy seeds for transplanting and wet seeding experiments were soaked in water in the same day. When the pre-germinated seeds were sown in the nursery to raise seedlings for Experiment I, the seeds from the same lot were sown directly in the field of Experiment II, For machine transplanting, the seedlings were raised in the dapog bed while for hand transplanting they were raised in wet bed. Fourteen to 16 day-old seedlings were used for transplanting experiment. During planting, the field capacities and efficiencies of different crop planting/seeding methods were calculated from the collected data. The crop stands after 20 days of planting were also recorded. Both experiments and treatments within an experiment were managed identically in terms of irrigation, drainage, weeding, fertilizer and insecticide application. Finally they were harvested, threshed, cleaned and dried; and the yields were expressed in mt per hectare at 14% moisture content. The data recorded from the experiments were subjected to analysis of variance and DMRT by using IRRISTAT package. The partial budget analyzes were conducted between transplanting and wet seeding practices for both traditional and mechanized system in order to determine the economically viable technology for crop establishment in lowland paddy.

Source of Information: AMA Vol. 31, No. 4, pp. 41-46, Autumn 2000, ISSN 0084-5841

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

For direct seeding, approximately 10 US dollar/ha additional cost was necessary for land levelling compared to the transplanting method. · In the field of wet seeding by hand, the operation of rotary weeder was not possible due to lack of specific rows in the plants. The work rate of random seeding by hand was approximately 100 times faster than that of hand transplanting. · In overall consideration, hand transplanting is still economical on the part of the farmers compared to the hand seeding method. · For both transplanting and seeding operations, a shift from the traditional to the mechanized practice was economical and profitable.

Knowledge Management: Journal