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Effects of Herbicides on Weed Control and Yield Performance of BINAdhan-5 Grown in Boro Season

M. A. Salam
Agronomy Division, Bangladesh Institute of Nuclear Agriculture, P.O. Box 4, Myrnensingh 2200.

M. M. Islam
Agronomy Division, Bangladesh Institute of Nuclear Agriculture, P.O. Box 4, Myrnensingh 2200.

M. S. Islam
Agronomy Division, Bangladesh Institute of Nuclear Agriculture, P.O. Box 4, Myrnensingh 2200.

M. H. Rahman
Agronomy Division, Bangladesh Institute of Nuclear Agriculture, P.O. Box 4, Myrnensingh 2200.

Abstract/ Executive Summary:

A field experiment was carried out at the Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh, to evaluate the effect of herbicide on growth and yield in boro rice (Binadhan-5). Four levels or seven herbicides namely, Argold 10EC, Ronstar 25EC, Butabel, Aimchlor 5G, Chinese herbicide, Rifit 50EC and Machete 5G along with check (no weeding and no use of herbicides) were used in the experiment. Each herbicide was applied with 4 doses viz, control dose (D₀), 3/4^th of recommended dose (D₁), recommended dose (D₂) and 11/4^th or the recommended dose (D₃). Population density of weed and dry matter or weed were taken. The growth characters such as root dry weight, stem dry weight, leaf dry weight, panicle dry weight, total dry weight and leaf area index (LAI) were recorded. Ten weed species belonging to four families namely Angta, Chechra, Arail, Joina, Durba, Panee kachu, Sabuj nakphul, Shusni shak, Holud mutha and Khudesharma were found to grow in the experimental plots. Among the herbicides, Machete 5G @ 25 kg ha^-1 (H₇ D₂) showed best performance. The highest grain yield (7.15 tha^-1) and straw yield (7.37 tha^-1) were found due to application of Machete 5G @ 25 kg ha^-1. The increased yield due to application of herbicide contributed mainly from increasing the number of panicles hill^-1 and number of grain panicle^-1.

Keywords: Rice, Herbicide, Yield

Location: Bangladesh Institute of Nuclear Agriculture, Mymensingh

Start Date: 00-01-2004

End Date: 00-05-2004

Program Area: Pest Management

Commodity: Rice

Objectives:

(i) To assess the weed control efficacy of different herbicides in boro rice; and

(ii) To assess the effect of herbicides on growth and yield parameters of boro rice.

Methodology:

The experiment was carried out at the experimental farm of the Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh during the period from January to May, 2004. The experiment was laid out in a RCBD with three replications. The size of the plot was 2m x 2m. Seven herbicides namely, Argold 10EC, Ronstar 25EC, Butabel, Aimchlor 5G, Chinese herbicide, Rifit 50EC and Machete 5G along with check (no weeding and no use of herbicides) were used in the experiment. Each herbicide was applied with 4 doses viz, control (D₀), 3/4^th of recommended dose (D₁), recommended dose (D₂) and 5/4^th of the recommended dose (D₃).The doses of herbicides were Argold 10EC @ 1.5, 2.0 and 2.5 Lha^-1 (H₁), Ronstar 25EC @ 1.5, 2.0 and 2.5 Lha^-1 (H₂), Butabel @ 18.75, 25.00 and 31.25 Lha^-1(H₃), Aimchlor @ 5G 18.75, 25.00 and 31.25 Lha^-1 (H₄), Chinese herbicide @ 0.375, 0.50 and 0.62 Lha^-1 (H₅), Rifit 50EC @ 0.75, 1.0 and 1.25 Lha^-1 (H₆) and Machete 5G @ 18.75, 25.00 and 31.25 Lha^-1 (H₇). Fertilizer were applied to the plots @ 100, 30, 60, 20 and 5 kg ha^-1 of N, P, K, S, Z through urea, triple super phosphate, muriate of potash. gypsum and zinc sulphate, respectively. The entire amount of triple super phosphate, muriate of potash, gypsum and zinc sulphate were broadcast and incorporated in the soil at final land preparation. The whole amount of urea (@ 100 kg ha^-1 N was applied as top dressing in three splits. The first split @ 1/3^rd of total amount of urea was applied at 11 days after transplanting (DAT). The second split @ 1/3^rd of the total amount of urea was applied at 30 DAT and the last split was applied at Panicle Initiation stage. The data on weed parameters such as weed density, weed dry weight, weed control efficiency and on growth parameters of rice e.g. numbers of leaves hill^-1, leaf dry matter (ghill^-1) stem dry weight (ghill^-1), root dry weight (ghill^-1), panicle dry weight (ghill^-1), total dry weight (ghill^-1) and leaf area index (LAl) were collected at 80 DAT and 90 DAT. The data on yield and yield components were recorded after harvest. All the collected data were statistically analyzed using a statistical package MSTAT and the means differences were adjudged by Duncan's Multiple Range test.

Source of Information: Bangladesh J. Weed Sci. 1(1), 15-23, June 2010; ISSN 2078 - 130X

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Therefore, it can be concluded that among the herbicides, Machete 5G @ 25 kg ha^-1 was found as the best in producing higher grain yield and controlled the weeds.

Knowledge Management: Journal