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Effect of Crop Establishment Methods on the Performance of Transplanted Aman Rice in North-western Region of Bangladesh

A B S Sarker
Senior Scientific Officer
Agronomy Division, BRRI, Gazipur,

M B Rahman
Principal Scientific Officer
Adaptive Research Division, BRRI, Gazipur

M G Ali
Senior Scientific Officer
Agronomy Division, BRRI

M A Mannan
Principal Scientific Officer
Agronomy Division, BRRI

R Yasmeen
Principal Scientific Officer
Plant physiology Division, BRRI

M A lslam
Principal Scientific Officer
Adaptive Research Division, BRRI, Gazipur

Abstract/ Executive Summary:

The field experiment was conducted al Bangladesh Rice Research Institute (BRRI), Rangpur to observe the performances of crop establishment method s during A man 2004 and 2005 seasons. System of rice intensification (SRI), BRRI recommended conventional transplanting, Bolan (double transplanting), seedling throwing and wet direct seeded rice by drum seeder methods were used for crop establishment. The SRI method produced about 1.60 t ha^-I higher grain yield than Bolan and wet-direct seeded rice by drum seeder method. The highest number of panicle was observed from the wet-direct seeded rice by drum seeder method in both seasons. The SRI method produced significantly higher number of filled grains panicle^-1 in both the seasons. Tillers deteriorating trend was less in SRI than other methods. The SRI and wet-direct seeded rice by drum seeder took less time for maturation than other planting methods, although field duration was higher.

Keywords: Crop Establishment Methods, Performance of Transplanted Aman Rice, North-western Region of Bangladesh

Location: BRRI regional station, Rangpur

Start Date: 01-07-2004

End Date: 31-12-2005

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

To observe the performances of different crop establishment methods, especially SRI in light textured soil in Aman season.

Methodology:

The experiment was conducted at BRRI regional station, Rangpur during Aman 2004 and 2005 seasons. BRRl recommended conventional transplanting, SRI, Bolan, seedling throwing and wet direct-seeded rice (WDSR) by drum seeder were evaluated with BR11. BRRI recommended conventional transplanting method. Seed was sown in the 2nd-3rd week of June and 30-day-old seedlings were transplanted in 2nd-3rd week of July. Spacing and seedling number hill^-1 were 20- x 20-cm and 2-3, respectively. Water was kept 3-4 cm depth from transplanting to ripening of the crop. System of Rice intensification (SRI) method. In this method, 12-day-old seedlings were transplanted at 25- x 25-cm spacing on 3r week of July. Single seedling hill-1 was transplanted carefully within half an hour after uprooting at 1-2 cm depth. Saturated field condition was maintained before panicle initiation (PI) stage. A thin layer of water (2-3 cm) was maintained in the field at PI stage until 10-15 days before harvest. Bolan method. Seeding was done very densely in last week of May in upland situations, which is called Bichonbari. First transplanting was done on medium highland in Ist-2nd week of June with very closer spacing (60-70 hills m^-2) and higher number of seedlings (6-8 hill^-1) which is known as Bolan Bari. One hill of Bolan Ban divided into 3 to 4 times and the second transplanting was done in the main field with in July with closer spacing (27-30 hill m^-2), which is known as Dhanbari. Data was taken as per the guide line of Gomez (1972). Collected data were analyzed following IRRISTAT and mean separation was done by DMRT.

Source of Information: Bangladesh Rice J. 13 (1): 107-112, 2008

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The SRI and BRRI methods appeared to be better option for higher grain yield than other methods in Rangpur region.

Knowledge Management: Journal