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Comparison of Tegra and Conventional Rice Cultivation in Bangladesh

A K M S Islam
Bangladesh Rice Research Institute, Gazipur, Bangladesh

M A Rahman
Bangladesh Rice Research Institute, Gazipur, Bangladesh

A B M Z Rahman
Syngenta Bangladesh Limited, Bangladesh

M Rahman
Syngenta Bangladesh Limited, Bangladesh

Y J Kim
Bangladesh Rice Research Institute, Gazipur, Bangladesh

Abstract/ Executive Summary:

Tegra practice (healthy seedling, mechanical transplanting, herbicide application and advisory services), as a new concept in commercial rice cultivation, needs to be evaluated with farmer’s practices in our country. This study was conducted in the farmers’ field during Aman 2013 and Boro 2013-14 seasons in Bogra district. In each season, six farmers within one kilometer radius were selected to conduct this study. Randomized complete block design (RCBD) with two treatments namely farmer’s practices (FP) and Tegra practices (TP) were used in the experiment. Self-propelled four rows walking-type rice transplanter was used to transplant seedling in TP. Seedlings were raised in plastic tray to use in mechanical transplanter. The mat seedlings were ready to transplant when attained 3-4 leaves and 10-12 cm height. Mechanical transplanting found faster than manual transplanting. Missing/floating hill observed insignificant in mechanically transplanted field. Fuel consumption of mechanical transplanter obtained 4.5 L/ha. Tender aged seedling was used in TP and seedling age was higher in FP than TP. Plant height followed the similar trend in both the practices. Tillering ability obtained the highest in TP than FP. TP produced significantly higher (14-23%) grain yield in both seasons. The total cost of production, gross return, gross margin and BCR obtained the highest in TP. BCR showed 5-13% higher in TP than FP in both the seasons due to higher grain and straw yield. The economic analysis clearly revealed the profitability of TP over FP in both the seasons.

Keywords: Fuel, Missing hill, Spacing, Hill density, Input cost, Yield, Benefit-cost ratio

Location: Bogra district, Bangladesh

Start Date: 00-00-2013

End Date: 00-00-2014

Program Area: Crop-Soil-Water Management

Commodity: Farm machineries

Objectives:

To identify the Comparison of Tegra and Conventional Rice Cultivation in Bangladesh

Methodology:

This study was conducted in the farmers’ field under Bogra district in Kodma, Omorpur, Nandigram during Aman 2013 season and Amin Nagar, Nandigram during Boro 2013-14 season. The soil type was clay loam (Sand 0%, Silt 3% and Clay 97%), AEZ 25 level Barind tract. The weather condition during the experimental period. This experiment was carried out in randomized complete block design (RCBD) with two treatments, viz ‘farmers’ practices (FP) and Tegra practices (TP). In each season, six farmers within one kilometer radius were selected to conduct this study. The field was prepared using common tillage practice, which is first ploughing (primary tillage) once, followed by puddling (secondary tillage) twice and leveling using two-wheel tractor under the flooding conditions. After first rotatilling, the field was flooded with water and kept as such for seven days and then second rotatilling was done on 8th day and the field was leveled by a plank. The plastic trays were used to raise mat-type seedlings. Dry soil was filled in tray in such a way that the soil was free from any stone, stubble and grass. Syngenta developed recipe was used to fill tray for seedling establishment. Sprouted seeds were spread uniformly over the tray by using mechanical sowing line. To protect the seeds from the birds, the mats were covered with black net. Water was sprinkled normally twice a day by rose cane until there was complete emergence of seedlings. The mat seedlings were ready to transplant when they had 3-4 leaves and 10-12 cm height. Seedbed preparation often involves secondary tillage by using spade and puddling was done after inundating the field. Drainage canals were constructed for proper water removal. Puddled soil was leveled and raised to 5-10 cm height. Organic manure (decomposed) and a small amount of inorganic fertilizer was applied as basal dressing to increase seed vigour and allows easier uprooting for transplanting. Sprouted seeds were broadcast in the seedbed. Border areas of all sides of the plot were excluded to avoid border competition effects. In order to estimate transplanting cost, the data on working speed, total time and labour inputs by the transplanter were recorded. Land value and interest on investment was considered to calculate the total input cost. Price of the produce was collected from the local markets to compute total production cost, gross return, gross margin and benefit- cost ratio. Statistical analysis was done by following Gomez and Gomez (1984). Data were analyzed using the ANOVA and the means comparison was determined using Duncan’s multiple range tests (DMRT) with the help of the computer package MSTAT-C.

Source of Information: Bangladesh Rice J. 20 (1) : 33-43, 2016

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Plant spacing of mechanically transplanted plot varied depending on puddled condition, soil type and water height. Plant height followed the similar trend in both the practices. Tillering ability showed the highest in TP. TP showed significantly higher grain yield than FP due to use of tender age seedling and good management practices. Tegra practice was more profitable in Boro than Aman season. It could be promoted extensively in farmer’s field to get better yield and economic performance.

Knowledge Management: Journal