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 Number of Seedlings Per Hill and Rate and Time of Nitrogen Application on the Yield of Late Transplant Aman Rice (cv. Br23)

N.A.M.Y. Ali
Urban Partnership for Poverty Reduction (UPPR) project, United Nations Development Programme (UNDP), Mymensingh paurashava, Mymensingh-2200, Bangladesh

M.A.R. Sarkar
Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

S.K. Paul*
Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

Abstract/ Executive Summary:

A field experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh to examine the effect of number of seedlings hill^-1 and rate and time of nitrogen application on the yield of late transplant Aman rice (cv. BR23). The experiment comprised three levels of number of seedlings hill^-1 viz. 2, 4, and 6, three nitrogen rates viz. 0, 60 and 120 kg N ha^-1 and three levels of time of nitrogen application viz. nitrogen application in two equal splits at 15 days after transplanting (DAT) and early tillering stage (ET); nitrogen application in three equal splits at 15 DAT, ET and panicle initiation (PI) stage; nitrogen application in four equal splits at 15 DAT, ET, PI and flowering (F) stages. The experiment was laid out in a randomized complete block design with three replications. Number of effective tillers hill^-1, grain yield and straw yield were the highest when 6 seedlings were transplanted hill^-1 while all yield contributing characters, grain and straw yields were the highest at 120 kg N ha^-1. In case of interaction, the highest grain yield was recorded in combination of 6 seedlings hill^-1 × 120 kg N ha^-1 and 120 kg N ha^-1 × three times of nitrogen applications (15 DAT + ET + PI). The highest number of effective tillers hill^-1 and grain yield were recorded in 6 seedlings hill^-1 × 120 kg N ha^-1 × three times N application (15 DAT + ET + PI) and thus this practice appears as the promising one for late transplant Aman rice (cv. BR23) cultivation.

Keywords: Late transplant Aman rice; Seedling hill-1 ; N rate; Time of application; Yield

Location: Agronomy Field Laboratory, Bangladesh Agricultural University Mymenshingh.

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

The present study was undertaken to examine the effect of number of seedlings hill^-1, rate and time of nitrogen application on the yield of late transplant Aman rice (cv. BR23).

Methodology:

The experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University Mymenshingh. The experimental belongs to the old Brahmaputra floodplain (AEZ 9) with medium topography and loamy texture having pH 6.5. The experiment comprised three levels of number of seedlings hill^-1 viz. 2, 4, and 6 seedlings hill^-1, three nitrogen rates viz. 0, 60 and 120 kg N ha^-1, three levels of time of nitrogen application viz. nitrogen application in two equal splits at 15 days after transplanting (DAT) and early tillering stage (ET); nitrogen application in three equal splits at 15 DAT, ET and panicle initiation stage (PI); nitrogen application in four equal splits at 15 DAT, PI and flowering stages (F). The experiment was laid out in a randomized complete block design with three replications. The size of each unit plot was 4.0 m x 2.5 m. Thirty-day old seedlings were transplanted on 25 September. The land was fertilized with urea as per treatment specification. Triple super phosphate, muriate of potash, gypsum and zinc sulphate were applied in all plots at the rate of 125, 67, 60 and 10 kg ha^-1, respectively at final land preparation. Other intercultural operations were done when necessary. Four hills were randomly selected (excluding boarder hills) prior to harvest to record the data on crop characters and yield contributing characters. The crop of individual plot was separately harvested at full maturity. The grain and straw yield for each plot were recorded after proper threshing, cleaning and sun drying. Grain yield was converted to t ha^-1 at 14% moisture basis. The collected data were statistically analyzed and mean differences were compared by Duncan’s New Multiple Range Test (DMRT) (Gomez and Gomez, 1984).

Source of Information: Int J Appl Sci Biotechnol, Vol 3(4): 692-698

Article Link (Online Journal): http://ijasbt.org/vol_3/Ali_et_al._3.4.pdf

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It can be concluded that for appreciable grain yield of late transplanted Aman rice (cv. BR23) can be grown by transplanting 4 or 6 seedlings hill^-1, fertilized with 120 kg N ha^-1 and 3 times N application at 15 DAT, early tillering (ET) and panicle initiation (PI) stages.

Knowledge Management: Journal