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Comparative Analysis of T. Aman Rice Cultivation Under Different Management Practice in Coastal Area

M. A. RAZZAQUE
RARS, Bangladesh Agricultural Research Institute, Rahmatpur, Barisal, Bangladesh

S. RAFIQUZZAMAN
Pulse Research Sub-Station, Bangladesh Agricultural Research Institute, Madaripur, Bangladesh

Abstract/ Executive Summary:

The field experiment was carried out at Multilocation testing site Barguna in kharif -II seasons of 1999 and 2000 to find out the probable reason of yield gap of T. aman rice (BR23) between demonstration plot (DP) with Research management and Non-demonstration plot (NDP) with Farmer management practices. Across the years there exists a big gap in yield (1220 kg ha^-1) between DP and NDP. DP gave about 25.15% higher yield than NDP due to use of best quality seed, appropriate age of seedlings (30 days), closer spacing, optimum number of seedlings per hill, use of balanced fertilizer and pest control in proper time. Although cultivation cost of DP was higher (Tk.2218 ha^-1) than that of NDP. Demonstration plots showed higher benefit cost ratio (2.28) than non-demonstration plot (1.98).

Keywords: Coastal area, T. aman rice, Farmer practice, Research management, Yield gap

Location: Multilocation testing site Barguna

Start Date: 00-00-1999

End Date: 00-00-2000

Program Area: Knowledge Management

Commodity: Rice

Objectives:

To pinpoint the reasons of yield gap and know the economic logic behind it and know the profitability.

Methodology:

A field experiment was conducted at Multilocation testing site Barguna during the kharif-II season of 1999 and 2000. Five demonstrations were carried out in the site. The unit plot size was 8m x 5m. Thirty days old seedling of BR23 rice was transplanted on 10 September maintaining 25cm x 15cm spacing with 5 seedlings per hill in both the years. Fertilizer were applied N P₂O₅K₂O @ 35-12-24 kg ha^-1 in the form of urea, triple super phosphate (TSP) and muriate of potash (MP). One third of urea, whole TSP and MP were applied during the final land preparation. The rest of urea was applied as top-dressed 20 and 42 days after transplanting. Rice was harvested between 10 to 12 December in both the year. At maturity stage of rice data on yield attributes were recorded from 10 randomly selected hills per plot. Yield data was recorded from whole plot. In addition to demonstration plots as above 30 plots owning by 30 farmers (NDP) T aman crops were selected randomly in each year. Farmers selected plots were monitored (surveyed) for necessary data collection with the help of a pre-designed schedule. Date of sowing & maturity were same as DP and NDP plots. All activities/operations such as time of weeding, number of pesticide application, number of seedling planting, source of seed were monitored and recorded to the schedule just after completion of the activity. More than 80% of the farmers are directly or indirectly dependent on agricultural income. The farm size was medium to large and 3-4 effective family members are consists in each farm. Most of the farmers are illiterates and they did not know how applied modern technology

Source of Information: J Agric Rural Dev 5(1&2), 64-69, June 2007 ISSN 1810-1860

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

There exists a big gap between demonstration and non-demonstration plot of transplant aman (BR23) in yield (1220 kg ha^-1). Gross return (Tk 9548 ha^-1) net return (Tk 7330 ha^-1) and variable cost (Tk 2218 ha^-1). Main reason behind this gap was use of wider spacing in non demonstration plots (30 cm x 25cm) In demonstration plot entire seed was purchased from BADC and their quality was good . In NDP the farmers used their own seeds or bought from the local market, which was less quality than BADC. In this location farmers opinion of growing MV aman rice high cost of fertilizer is the 1st constraints and Unavailability of quality seed is the 2nd constraints for cultivation of modern T. aman rice.

Knowledge Management: Journal