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Date of Sowing and Nitrogen Fertilization Effect on Sesame

G. A. K. Shubha
Department of Agronomy, Bangladesh Agricultural University, Mymensingh.

Salim, M
Department of Agronomy, Bangladesh Agricultural University, Mymensingh.

Anwar, M.P.
Department of Agronomy, Bangladesh Agricultural University, Mymensingh.

Abstract/ Executive Summary:

An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh, from 15 February to 30 March 2006 with a view to studying the effect of date of sowing and nitrogen level on the seed yield of sesame. The experiment consisted of four sowing dates viz., 15 February, 1 March, 15 March and 30 March and four nitrogen levels viz., 40, 60, 80 and 100 kg N ha^-1. The experiment was laid out in a randomized complete block design with three replications. The result showed significant variations due to date of sowing for all the crop characters viz. plant height, number of total capsules plant^-1, number of effective capsules plant ^-1, number of non-effective capsules plant ^-1, length of capsule, number of seeds capsule^-1, number of sterile seeds capsule ^-1,1000-seed weight, seed yield, stover yield and harvest index. The highest seed yield (1.92 t ha^-1) was recorded from 1 March sowing. Nitrogen had significant effect on all the parameters studied except non-effective capsule number and 1000-seed weight. The highest seed yield (2.07 t ha^-1) was recorded from 100 kg N ha^-1.The interaction of time of sowing and nitrogen level exerted significant effects on all the parameters studied except number of sterile seeds capsule^-1, 1000-seed weight. Therefore for obtaining higher seed yield, sesame may be sown between1-15 March along with application of 80-100 kg N ha^-1.

Keywords: Sowing date, Nitrogen level, Seed yield, Sesame

Location: Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh

Start Date: 00-02-2006

End Date: 00-06-2006

Program Area: Crop-Soil-Water Management

Non-commodity: Sesame

Objectives:

1. To find out the optimum date of sowing and suitable nitrogen level for maximizing seed yield of BINA til -1.

Methodology:

The experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during the period from February to June 2006 to find out the effect of date of sowing and nitrogen level on seed yield of sesame. The experimental area was under Sonatala Soil Series of the Old Brahmaputra Floodplain Agro-ecological Zone (AEZ 9). The soil type was non-calcareous dark gray and the parent material was Brahmaputra river born deposit. The land was medium high with moderate drainage facility. The soil of the experimental unit belongs to the textural class silty loam having pH of 6.50 containing 1.71% organic matter, .010% total nitrogen, 26.00 ppm available phosporus, 0.14me exchangeable potassium/100 g soil and 13.90 ppm available sulphur. The experiment included four sowing dates viz. 15 February, 1 March, 15 March and 30 March and four levels of nitrogen viz. 40, 60, 80 and 100 kg ha^-1. BINA til-1 cultivar was used as a test crop in the experiment. The experiment was laid out in a randomized complete block design with three replications. Each unit plot size was 4m × 2.5m. Each plot was fertilized with TSP, MP and ZnSO4 @150, 50 and 5 kg ha^-1. Urea, as a source of N, was applied as per treatments. The whole amount of TSP, MP, ZnSO4, and 50% of urea were incorporated at the time of final land preparation. The remaining urea was applied 20 days after sowing. Different intercultural operations such as gap filling, weeding and pesticide application were done as and when necessary. A total of five sample plants were randomly selected and uprooted from each plot prior to harvest for recording data on yield components. After sampling, harvesting was done at different dates at proper maturity. The first sown crop was harvested on 24 May; second sown crops on 8 June, third sown crops on 13 June and last sown crop on 22 June 2006. The data were recorded on plant height, number of total capsules, number of effective capsules, number of non-effective capsules, length of capsule, number of seeds capsule^-1, number of sterile seeds capsule^-1,1000-seed weight, seed yield, stover yield, biological yield and harvest index. All the data were statistically analyzed and mean differences were adjudged by Duncan's Multiple Range Test (DMRT).

Source of Information: J. Agrofor. Environ. 1(1): 2007; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The result showed significant variations due to date of sowing for all the crop characters viz. plant height, number of total capsules plant^-1, number of effective capsules plant ^-1, number of non-effective capsules plant ^-1, length of capsule, number of seeds capsule^-1, number of sterile seeds capsule ^-1,1000-seed weight, seed yield, stover yield and harvest index.

Knowledge Management: Journal