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Effect of Tillage, Raking and Weeding on the Growth, Yield and Economics of Aus Rice (cv. Br 20)

F. Hossain
Department of Agronomy, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh

M.S. Bari
Department of Agroforestry, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh

U.K. Majumder
Department of Statistics, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh

M.M. Bahadur
Department of Crop Botany, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh

M.J. Islam
Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh

Abstract/ Executive Summary:

The experiment was conducted to evaluate the performance of Aus rice (CV. BR 20) under variable management. The treatments consisted of three tillage (Viz. 1 tillage, 2 tillage and 4 tillage) and three cultural practices (Viz. 2 raking, 2 weeding and 2 raking + 2 weeding). The Aus rice increased yield both for more tillage and cultural practices. Significantly, the highest grain yield (2.92 t ha^-1) was obtained from 4 tillage with 2 raking and 2 weeding at 15 and 30 days after sowing (DAS). Though the treatment, 4 tillage with 2 raking and 2 weeding gave the highest yield but the benefit cost ratio (BCR) was found to be low (1.08) in this treatment. One tillage and two raking (15 and 30 DAS) was economically profitable practice with grain yield of 2.51 t ha^-1 which also gave gross return of TK. 21520 ha^-1, net return TK. 8731 ha^-1+ and BCR 1.68.

Keywords: Tillage, Raking, Weeding, Yield, Aus rice

Location: Agronomy Field Laboratory of the Hajee Mohammad Danesh Science and Technology University, Dinajpur

Start Date: 06-04-2001

End Date: 27-07-2001

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

The present investigation was conducted to evaluate the performance of Aus rice under different combinations two cultural practices, raking and hand weeding, with different soil tilth.

Methodology:

The experiment was conducted at the Agronomy Field Laboratory of the Hajee Mohammad Danesh Science and Technology University, Dinajpur during the period from 6^th April to 27^th July 2001 to evaluate the effect of minimum tillage under different intercultural practices on yield and yield contributing characters of Aus rice (CV. BR 20). The experimental treatments were consisted of 3 tillage viz. 1 tillage, 2 tillage, 4 tillage, 2 raking, 2 weeding and 2 raking + 2 weeding. A split-plot design was used and the experimental field was divided into 4 blocks and each block was again divided into 3 main-plots and 3 sub-plots. The tillage operations were randomly assigned into the main plots and the cultural practices into the sub-plots. The individual plot size was 4x2.5 m². Inter-plot spacing was 0.5 m and Inter-block was 1.0 m. The crop was fertilized with 57.96 N, 36.00 P₂O₅, 24.00 K₂O, 11.16 S and 4.03 kg ha^-1 Zn through Urea, TSP, MP, Gypsum and Zinc sulphate, respectively. Seeds were sown in line on 6^th April 2001, maintaining spacing of 25x10 cm². Three seeds were placed in each whole point. First raking and second raking were done at 15 and 30 days after sowing (DAS). Two weeding were done with niri in the respective plots first at 15 DAS and the second at 30 DAS. Two raking and two weeding were done alternatively at 10 days interval. The grain weight was recorded at 12% moisture content basis. The crop was harvested during 27^th July, 2001. Data on yield and yield contributing characters were recorded and analyzed statistically. Economic analysis was done on the basis of prevailing market price of the input and output products.

Source of Information: Journal of Agronomy, 1: 68-70, 2002; ISSN 1680-8207

Article Link (Online Journal): DOI: 10.3923/ja.2002.68.70; URL: http://scialert.net/abstract/?doi=ja.2002.68.70

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

It can be concluded that through 4 tillage with 2 raking + 2 weeding gave the highest grain yield with higher cost involvement and was not economic. But 1 tillage with 2 raking (at 15 and 30 DAS) gave fairly good yield with better economic return. For the resource poor farmers, the treatment of 2 tillage with 2 raking may also be recommended.

Knowledge Management: Journal