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Effect of Plant Spacing and Nitrogen on Yield of Transplant Aman Rice Var. BRRI Dhan52

M. A. Haque
Bangladesh Institute of Nuclear Agriculture (BINA), Bangladesh Agricultural University campus, Mymensingh-2202, Bangladesh

A. N. A. Haque
Bangladesh Institute of Nuclear Agriculture (BINA), Bangladesh Agricultural University campus, Mymensingh-2202, Bangladesh

A. H. M. Razzaque
Bangladesh Institute of Nuclear Agriculture (BINA), Bangladesh Agricultural University campus, Mymensingh-2202, Bangladesh

M. A. Ullah
Bangladesh Institute of Nuclear Agriculture (BINA), Bangladesh Agricultural University campus, Mymensingh-2202, Bangladesh

Abstract/ Executive Summary:

An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh, during the period from 10 July 2012 to 15 December 2012 to investigate the effect of plant spacing and nitrogen levels on yield and attributes yield of transplant aman rice cv. BRRI dhan52. The experiment comprised of four plant spacing viz. 25 cm × 20 cm, 25 cm × 15 cm, 20 cm × 20 cm and 20 cm × 15 cm, and five nitrogen levels viz. 0, 40, 80, 100 and 140 kg N ha^-1. BRRI dhan52 was used as planting material. Results revealed that plant spacing and N levels had significant effect on the studied crop characters and yield. The plant height, number of total tillers and effective tillers hill^-1, grains panicle^-1, grain and straw yields increased with increasing plant spacing and N levels. The highest plant height, number of total tillers and effective tillers hill^-1 and grains panicle^-1 was observed in the widest spacing of 25 cm × 20 cm resulting, the highest grain yield followed by 20 cm × 20 cm. In contrast, the closest spacing of 20 cm × 15 cm, produced the lowest values of the above mentioned plant parameters and also showed the lowest grain yield. The longest plant, highest number of total, effective tillers hill^-1, grains panicle^-1, grain and straw yields were observed with 100 kg N ha^-1 followed by 140 kg N ha^-1. On the other hand, the shortest plant, lowest number of total tillers and effective tillers hill^-1, grains panicle^-1, grain and straw yields were observed with no nitrogen and the non-effective tillers hill^-1 and sterile spikelet’s panicle^-1 were recorded the highest. In regard to interaction effect of spacing and N levels, the highest plant height, number of total and effective tillers hill^-1 were observed in the widest spacing of 25 cm × 20 cm with 100 kg N ha^-1 and resulting the highest grain yield. The lowest values of the above parameters were recorded in the narrowest plant spacing, 20 cm × 15 cm with no nitrogen application. Based on the experimental results, it may be concluded that 25 cmX 20 cm spacing with 100 kg N ha^-1 would be the best treatments combinations regarding yield and yield attributes of BRRI dhan52.

Keywords: Transplant Aman Rice, Nitrogen Levels, Plant Spacing, BRRI dhan52 and Rice Yield

Location: Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh

Start Date: 10-07-2012

End Date: 15-12-2012

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

To investigate the effect of plant spacing and nitrogen levels on the yield of transplant Aman rice cv. BRRI dhan52

Methodology:

The experiment was conducted at the Agronomy Field Laboratory of Bangladesh Agricultural University, Mymensingh during the period from 10 July 2012 to 15 December 2012 to investigate the effect of plant spacing and nitrogen levels on the yield of transplant Aman rice cv. BRRI dhan52. The experimental site belongs to the Agro-ecological zone of the Old Brahmaputra Floodplain (AEZ 9) having dark grey soil. The experimental area has sub-tropical climate characterized by heavy rainfall during the months from June to September and scanty rainfall during the rest of the year. The experiment comprised of four plant spacing viz. 25 cm × 20 cm, 25 cm × 15 cm, 20 cm × 20 cm and 20 cm × 15 cm, and five nitrogen levels viz. 0, 40, 80, 100 and 140 kg Nha^-1. The variety BRRI dhan52 used as a planting material. The experiment was laid out in a randomized complete block design with three replications. The size of a unit plot was (4.0 m×2.5 m). The distances between replications and between plots were 1m and 0.75m respectively. Intercultural operations such as gap filling, weeding, crop protection measures, mater management were done as when as required. Data were collected on plant height, total tillers hill^-1, effective fillers hill^-1, non-effective fillers hill^-1, panicle length, total grains panicle^-1, number of unfilled grains panicle^-1, number of filled grains panicle^-1, 1000-grain weight, grain yield, straw yield, biological yield, harvest index at the time of harvest. All the collected data were analyzed by following the analysis of variance (ANOVA) technique and mean differences were adjudged by Duncan’s Multiple Range Test (DMRT) using a computer operated statistical programme named MSTAT-C.

Source of Information: Journal of Bioscience and Agriculture Research, Vol. 04, Issue 02: 52-59. 2015

Article Link (Online Journal): http://www.journalbinet.com/jbar-040215-42.html

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The highest plant height, number of total and effective tillers hill^-1 was observed in wider spacing, 25 cm × 20 cm with N 100 kg ha^-1. On the contrary, the lowest one was recorded in narrower spacing 20 cm × 15 cm with no nitrogen. Based on the experimental results, it may be concluded that 25cm X 20cm spacing with 100 kg N ha^-1 would be the best regarding yield and yield attributes of BRRI dhan52 in aman season.

Knowledge Management: Journal