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

Varietal Performance of Modern Transplant Aman Rice Subjected to Level of Nitrogen Application

Dr. Swapan Kumar Paul
Associate Professor
Department of AgronomyBangladesh Agricultural University, Mymensingh 2202Bangladesh

Abstract/ Executive Summary:

An experiment was carried out at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during June to December 2012 with a view to finding out the effect of variety and nitrogen fertilizer application on the growth and yield of transplant Aman rice. The experiment comprised four varieties viz. BRRI dhan33, BRRI dhan34, BRRI dhan39 and BRRI dhan46, and four levels of nitrogen viz. control (no urea), prilled urea (50 kg N ha^-1), one pellet (0.9g) of USG/4 hills of two adjacent rows (30 kg N ha^-1) was applied at 10 DAT and two pellets of USG (0.9g each) one applied at 10 DAT and the other at 45 DAT/4 hills of two adjacent rows (60 kg N ha^-1). The experiment was laid out in a randomized complete block design with three replications. Results of the experiment showed that variety and level of nitrogen application had significant effect on yield attributes and yield of transplant Aman rice. At maturity the tallest plant (122.60 cm) and the highest number total tillers hill^-1(12.72) were observed in two pellets of USG/4 hills providing 60 kg N ha^-1. The highest number of tillers hill^-1(10.08) was obtained from BRRI dhan34 and the lowest one (9.88) from BRRI dhan33. The highest grain yield was obtained from BRRI dhan46 (4.56 t ha^-1) and the lowest one (3.27 t ha^-1) was obtained from BRRI dhan34. The interaction reveals that the highest grain yield (5.61 t ha^-1) was obtained from the treatment combination of BRRI dhan46 with two pellets of USG (0.9g each) applied one at 10 DAT and the other at 45 DAT.

Keywords: Transplant Aman rice, Variety, Nitrogen, Prilled urea, USG

Location: Mymensingh

Start Date: 00-07-2012

End Date: 00-12-2012

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

To investigate the performance of transplant rice varieties under various levels of nitrogen application.

Methodology:

The experiment was conducted at the Agronomy Field laboratory, Bangladesh Agricultural University, Mymensingh during July to December 2012. The experimental site belongs to the Sonatola Soil Series of Old Brahmaputa Floodplain (AEZ 9) having non calcareous dark grey floodplain soil. The land was medium high with sandy loam texture having pH 5.9-6.5. The experiment consisted of four varieties viz. BRRI dhan33, BRRI dhan34, BRRI dhan39 and BRRI dhan46; and four levels of nitrogen viz. control (no urea), prilled urea (50 kg N ha^-1), one pellet (0.9g) of USG/4 hills of two adjacent rows (30 kg N ha^-1) was applied at 10 DAT and two pellets of USG (0.9g each) one applied at 10 DAT and the other at 45 DAT/4 hills of two adjacent rows (60 kg N ha^-1). The experiment was laid out in a randomized complete block design with three replications. The size of unit plot was 4.0m×2.5m. Spacing of 1m and 0.75m were maintained in between the replications and unit plot, respectively. Fertilizers were applied to the plots at the rate of 90, 60, 40 and 10 kg ha^-1 of P₂O₅, K₂O, S and Zn through triple super phosphate, muriate of potash, gypsum and zinc sulphate at the time of final land preparation. Prilled urea was applied at the rate of 50 kg N ha^-1 in three installments at 15, 30 and 45 DAT. As per experimental specification USG were placed manually (depth 6-8 cm) at the centre of four hills of two adjacent rows at 10 days after transplanting (DAT). In case of twice, USG was placed at 10 DAT and 45 DAT. Five hills were selected from each plots excluding boarder rows and central area (1.0m ? 1.0m). The crop was harvested at different times according to varietal maturity. Harvesting was done from central area of 1 m² to record the yields of grain and straw. The harvested crop was then threshed, cleaned and sun dried to record the grain yield plot^-1, which was finally converted to t ha^-1at 14% moisture basis. The recorded data were statistically analyzed using the “Analysis of Variance” technique and the differences among treatment means were adjudged by Duncan’s New Multiple Range Test.

Source of Information: J. Bangladesh Agril. Univ. 12(1): 55–60, 2014 ISSN 1810-3030

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The highest number of tillers hill^-1 (10.08) was obtained from BRRI dhan34 and the lowest one (9.88) from BRRI dhan33. The highest grain yield was obtained from BRRI dhan46 (4.56 t ha^-1 ) and the lowest one (3.27 t ha^-1) was obtained from BRRI dhan34. The interaction reveals that the highest grain yield (5.61 t ha^-1 ) was obtained from the treatment combination of BRRI dhan46 with two pellets of USG (0.9g each) applied one at 10 DAT and the other at 45 DAT. From this study, it can be concluded that performance of BRRI dhan46 was better over other tested varieties. Two pellets of USG (0.9g each)/4 hills applied at 25 and 45 DAT providing 60 kg N ha^-1 was the optimum level of nitrogen in respect of grain and straw yield.

Knowledge Management: Journal