Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Productivity of Dry Seeded and Transplanted Rice (oryza Sativa) in Aman Season

M. HARUNUR RASHID
Rice Farming Systems Division, Bangladesh Rice Research Institute (BRRI), Gazipur-1701, Bangladesh.

NARGIS PARVIN
Rice Farming Systems Division, Bangladesh Rice Research Institute (BRRI), Gazipur-1701, Bangladesh.

M. RAHMAN DEWAN
Rice Farming Systems Division, Bangladesh Rice Research Institute (BRRI), Gazipur-1701, Bangladesh.

M. HAZRAT ALI
Rice Farming Systems Division, Bangladesh Rice Research Institute (BRRI), Gazipur-1701, Bangladesh.

Abstract/ Executive Summary:

The grain yield was significantly different among the treatments. The highest grain yield was obtained from dry seeding at 7-9 seeds per drop (3.9 t/ha), which was similar to transplanting (3.2 t/ha). The grain yield obtained from dry seeding at 3-6 seeds per drop was the lowest (2.7 t/ha). The higher yields of former two treatments were mainly due to the combined effect of higher number of panicles/m² and more number of filled grains/panicle. The transplanted rice occupied the main field for lesser period (103 days) than dry seeded rice (122 days). On the other hand, the seed to seed growth duration was higher in transplanting method (133 days) than the dry seeded rice. The dry seeded rice had the opportunity to harvest 11 days earlier than transplanted rice which might reduce the application of supplemental irrigation in late planted Aman rice. Total variable cost was recorded higher in transplanted rice (Tk. 37950/ha) compared to direct seeded rice under both the treatments (Tk. 31900/ha in 3-6 seeds per drop and Tk. 32650/ha in 7-9 seeds per drop) due to involvement of higher land preparation cost. Between the direct seeded rice treatments, the total variable cost was higher in 7-9 seeds per drop, because of higher seed requirement in the treatment. Total gross margin (Tk. 41250) was recorded higher in direct seeded rice at 7-9 seeds per drop compared to dry seeded rice at 3-6 seeds per drop (Tk. 14800) and transplanting method (Tk. 29750).

Keywords: Dry seeded rice, Seed dropping rate, Agro-economic productivity

Location:

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

The study was conducted to compare the direct dry seeded rice using the options of number of seeds per dropping of VMP with the existing transplanting method.

Methodology:

The experiment was conducted at the Bangladesh Rice Research Institute (BRRI) farm in Gazipur during T. Aman season in 2010. Dry seeded rice with two options of seeding 3-6 seeds per drop and 7-9 seeds per drop using VMP was compared with conventional transplanted rice. The treatments were assigned in a randomized complete block design with four replications. The unit plot size was 50 m². The seeds of rice variety, BR22 were soaked in water for 2 hours and unfilled grains that floated on the top of the water were separated from the seeds. Seeds were dried in air and were sown as per treatment in single pass tillage on 1 September at 20 cm row maintaining the drop at 13-17 cm apart. Seeds were soaked on the same day for seeding on the seedbed for transplanting. The seedling was transplanted on 1 October at 20 cm × 15 cm spacing with 3-4 seedlings per hill. The plots were fertilized at the rate of 80 kg N, 12.5 kg P, 42 kg K, and 10 kg S in the form of urea, TSP, MoP, and gypsum, respectively. The total amounts of P, K, and S were applied basally immediately before seeding or transplanting. Nitrogen was applied in three equal splits at 15, 30, and 45 days after seeding in DSR, while 0, 15 and 25, days after transplanting in transplanted crop. Non-selective herbicide glyphosate was applied 48 hours before the dry seeding and at land preparation for transplanting to control the weeds at the rate of 1.0 kg a.i. per ha. After seeding in DSR and transplanting in conventional practice, weeds were managed by manual weeding. Supplemental irrigation was done as and when necessary. The dry seeded rice was harvested at maturity on 1 January, while transplanted rice was harvested 11 January in 2011. The statistical analysis was done using CropStat Version 7.2. Economic analysis was performed to determine the productivity of different treatments.

Source of Information: Bangladesh J. Agril. Res. 39(1): 185-187, March 2014 ISSN 0258-7122

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The results indicate that the productivity of dry-seeded Aman rice (7-9 seeds per drop) with VMP is feasible and could be harvested 11 days earlier than transplanted rice.

Knowledge Management: Journal