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

Effect of Water and Weed Management in Boro Rice (cv. BRRI Dhan28) in Bangladesh

Md. Abdur Rahman Sarkar
Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

Swapan Kumar Paul
Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

Uttam Paul
Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

Abstract/ Executive Summary:

The experiment was conducted at the Farm of Farm Management Division, Bangladesh Agricultural University, Mymensingh during December 2012 to June 2013 to find out the effect of water and weed management in Boro rice (cv. BRRI dhan28). The experiment consisted of three irrigation systems viz., conventional flood irrigation, Alternate wetting and drying (AWD) and System of rice intensification (SRI) and four weed management practices viz., No weeding, hand weeding thrice at 20, 35 and 50 days after sowing, blade weeding + hand weeding once at 20 DAS; and pre-emergence herbicide (Panida 33 EC) @ 2.5 l ha^-1 + hand weeding once at 20 DAS. Crop characters, yield components and yield were significantly influenced by water and weed managements, and their interaction. The highest plant height (91.51 cm), total tillers hill^-1 (15.49), grains panicle^-1(86.87) and grain yield (4.02 t ha^-1) were obtained in SRI method and corresponding lowest values were found in conventional flood irrigation while all parameters showed intermediate values in AWD. The highest plant height (93.45 cm), total tillers hill^-1 (16.53), effective tillers hill^-1 (12.88), grains panicle^-1 (86.14), grain yield (5.47 t ha^-1) and straw yield were found in pre-emergence herbicide (Panida 33 EC) @ 2.5 l ha^-1 + one hand weeding at 20 DAS while all the parameters showed lowest values in weedy check. Weed infestation reduced 80.07% yield compared to application of pre-emergence herbicide (Panida 33 EC) @ 2.5 l ha^-1 + one hand weeding at 20 DAS. In case of interaction, the highest total tillers hill^-1 (20.93), grains panicle^-1(102.3) and grain yield (5.86 t ha^-1) were found in SRI method with pre-emergence herbicide (Panida 33 EC) @ 2.5 l ha^-1 + one hand weeding at 20 DAT while the lowest total tillers hill^-1 (10.97), grains panicle^-1(61.46) and grain yield (0.91 t ha^-1) were found in conventional flood irrigation having no weeding treatment. The above results concludes that SRI method with pre-emergence herbicide (Panida 33 EC) @ 2.5 l ha^-1 + one hand weeding at 20 DAS appeared as the promising technique for appreciable grain yield of Boro rice (cv. BRRI dhan28).

Keywords: Alternate wetting and drying, Boro rice, Direct wet seeding, Water management, Weed management

Location: Farm of Farm Management Division, Bangladesh Agricultural University, Mymensingh

Start Date: 00-12-2012

End Date: 00-06-2013

Program Area: Crop-Soil-Water Management

Commodity: Weed management, Water management, Rice

Objectives:

To find out the effect of weed and water management on yield of Boro rice (cv. BRRI dhan28), Bangladesh.

Methodology:

The experiment was conducted at the Farm of Farm Management Division, Bangladesh Agricultural University, Mymensingh during December 2012 to June 2013 to find out the effect of water and weed management in Boro rice (cv. BRRI dhan28). The experimental plot is geographically situated at 24⁰75'N latitude and 90⁰50'E longitude at an altitude of 18 m above the mean sea level. The treatments consisted of three water management viz., Conventional flood irrigation (I₁), AWD (Alternate wetting and drying (I₂), SRI (System of rice intensification) (I₃) and four weed management practices viz., No weeding (W₀), hand weeding thrice at 20, 35 and 50 days after sowing (W₁)_, blade weeding + hand weeding once at 20 DAS (W₂) and pre-emergence herbicide (Panida 33 EC) @ 2.5 l h^-1 + hand weeding once at 20 DAS. The experiment was laid out in randomized complete block design with three replications. The size of unit plot was 4.0 m × 2.5 m. The distances between blocks and plots were 1 m and 75 cm, respectively. Sprouted seeds of BRRI dhan28 were sown on puddled field having no standing water on 15 February 2013 with four seeds hill^-1 at 25 cm × 15 cm spacing. In case of SRI method, 12-day old seedlings were transplanted at 25 cm × 25 cm spacing on 27 February 2013 with one seedling hill^-1. The land was fertilized with 120-60-40-10-1.5 kg ha^-1N-P₂O₅-K₂O -S-Zn, through prilled urea, triple super phosphate, muriate of potash, gypsum and zinc sulphate, respectively. Thinning and gap filling were done at 10 DAS to maintain the uniform plant stand in all the plots. Five hills (excluding border rows) from each plot were randomly selected, uprooted and properly tagged prior to harvest for recording data on crop characters and yield components. The harvested crop of central 2.5 m × 2.0 m harvest area was bundled plot-wise separately, tagged properly and brought to the clean threshing floor. The bundles were sun dried, threshed and then grains were cleaned and weighed. The grain yield was adjusted to 14% moisture content. Straws were also sun dried properly. Grain and straw yields were then converted to t ha^-1. The data recorded on various growth and yield were analyzed following analysis of variance (ANOVA) and mean differences were adjusted by Duncan’s Multiple Range Test (Gomez and Gomez, 1984) using a statistical computer package program MSTAT-C (Michigan State University, USA).

Source of Information: Archives of Agriculture and Environmental Science 2(4): 325-329 (2017)

Article Link (Online Journal): DOI: 10.26832/24566632.2017.020414

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

From this study it can be concluded that among the water management practices SRI system was found as the best water management practice in Boro rice (cv. BRRI dhan28) in terms of productivity. For efficient weed management, pre- emergence herbicide (Panida 33EC) @ 2.5 l ha^-1 + hand weeding once at 20 DAS was found to be the best weed management practice. Therefore, SRI method with pre-emergence herbicide (Panida 33 EC) + one hand weeding at 20 DAS appeared as the promising technique for appreciable grain yield in Boro rice (cv. BRRI dhan28) cultivation.

Knowledge Management: Journal