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

Performance of Edchlor 500 Ec (pretilachlor) for Weed Control in Rice.

Md. Khairul Alam Bhuiyan
SSO
Agronomy Division, BRRI, Gazipur

Abstract/ Executive Summary:

The study was conducted at BRRI, Gazipur with the objective to observe the weed control efficiency, impact on plant growth and yield of BR26. Bio efficacy data of Check 500 EC @ 1.0 L ha-1 against weed suppression indicated that 86% control of Scirpus maritimus, 81% control of Ludwigia octovalvis,80% control of Cyperus iria,80% control of Leptochloa chinensis and 81% control of Monochoria vaginalis were achieved. No significant effect on plant height due to different doses of herbicide. Herbicide treatment significantly influenced on tiller production, panicle production, grain per panicle and grain yield.The highest tiller number per m² (298.00) was observed in weed free plot which was statistically similar with other treated plot treated plots except Edchlor 500 EC @ 0.5 L ha^-1 and un weeded plot. The lowest tiller m² (169.00) was observed from un weeded plots. in case of panicle per m² similar trend of result was observed. Weed free plot gave the highest panicle m²(353.67) which is statistically similar with other treated plots except un weeded plot. Un weeded plot produced lowest panicle m² (204.33). Number of filled grain panicle^-1 was statistically higher in weed free (85)treatment and the lowest grain panicle^-1 (51) was observed in un weeded plots. Considering grain yield, Weed free plot gave the highest grain yield (4.24 t/ha) which was statistically similar with other herbicide treated plots. The lowest grain yield was obtained from un weeded plot (2.22 t ha^-1).

Keywords: Edchlor 500 EC (Pretilachlor) , Weedicide, Rice.

Location: BRRI Farm, Gazipur.

Start Date: 01-07-2004

End Date: 30-06-2005

Program Area: Crop-Soil-Water Management

Commodity: Herbicide

Objectives:

To observe the weed control efficiency, impact on plant growth and yield of BR26.

Methodology:

The study was conducted at BRRI, Gazipur. The treatment were i) Edchlor 500 EC @ 0.5 L ha^-1 ii)Edchlor 500 EC @ 1.0 L ha^-1 iii) Edchlor 500 EC @ 1.5 L ha^-1iv) Coroster 25EC @ 2.0 L ha^-1 v) weed free and vi) control. Corostar @ 2.0 L ha^-1 was used to compare the new herbicide. The experiment was laid out in RCB design with 3 replications. Thirty days old seedlings of BR 26 were transplanted on 20th April 2005 at 20 x 20 cm spacing with 2 seedling hill^-1. Fertilizer was applied following BRRI recommended dose. Herbicides were sprayed at 3 days after transplanting. In weed free treatment, the plots were kept weed free up to 40 DAT. Weed control efficiency was calculated using weed dry matter weight data. Other operations were done as when necessary.

Source of Information: BRRI. Proceedings of the BRRI Annual Internal Review for 2004-2005. Bangladesh Rice Research Institute (BRRI). Gazipur -1701.

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

From this study it was found that Edchlor 500 EC @ 1.0 L ha^-1 controlled weed effectively and produced optimum grain yield in T. Aus season.

Knowledge Management: Report/Proceedings