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Performance of Separated Tillers of Transplant Aman Rice at Different Levels of Urea Super Granules

K. S. Rahman
MS student
Department of Agronomy, Bangladesh Agricultural University (BAU), Mymensingh-2202, Bangladesh

S. K. Paul
Assistant Professor
Department of Agronomy, Bangladesh Agricultural University (BAU), Mymensingh-2202, Bangladesh

M. A. R. Sarkar
Professor
Department of Agronomy, Bangladesh Agricultural University (BAU), Mymensingh-2202, Bangladesh

Abstract/ Executive Summary:

An experiment was conducted at the research field of Department of Agronomy, Bangladesh Agricultural University, Mymensingh during June to December 2012 to investigate the effect of age of tiller seedlings, number of tiller seedlings hill^-1 and application of urea super granules (USG) on the yield and yield contributing characters of transplant Aman rice (cv. BRRI dhan52). The experiment consisted of two ages of tiller seedlings viz. 25 and 35-days old, three levels of tiller seedlings hill^-1 viz. 1, 3 and 5 seedlings hill^-1 and three levels of USG viz. 0, 1.8 (55 kg N ha^-1) and 2.7g USG (80 kg N ha^-1) four hill^-1 in every alternate row. The experiment was laid out in a Randomized Complete Block Design (Factorial) with three replications. The highest grain yield and harvest index were found in 1.8 g USG applied @ one granule 4-hill^-1. The highest number of sterile spikelets panicle^-1 was found in control treatment and the lowest in 1.8 g USG. The highest number of effective tillers hill^-1, grain yield ha^-1 was found when 5 tiller seedlings were transplanted hill^-1 combined with 1.8 g USG. Application of urea super granules 1.8 g (55 kg N ha^-1) at 10 days after transplanting @ one granule 4-hill^-1 in every alternate row with 25 day old tiller seedlings using 5 tiller seedlings hill^-1was found beneficial for grain yield of transplant Aman rice.

Keywords: Age of tiller seedlings, Transplant Aman rice, USG, Yield.

Location: Research field of Department of Agronomy, Bangladesh Agricultural University, Mymensingh

Start Date: 00-06-2012

End Date: 00-12-2012

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

Objective of the study was to investigate the effect of age of tiller seedlings, number of tiller seedlings hill^-1 and application of urea super granules (USG) on the yield and yield contributing characters of transplant Aman rice (cv. BRRI dhan52).

Methodology:

The experiment was conducted at the research field of Department of Agronomy, Bangladesh Agricultural University, Mymensingh during the period from June to December 2012. The experimental sites belongs to the Sonatola Soil Series of Old Brahmaputra Floodplain (AEZ 9) having non calcareous dark grey floodplain soil. The land was medium high with sandy loam texture having pH 6.5. Soil contained 1.67% organic matter, 0.10% total N, 26.0 ppm available P, 0.14 (me) % exchangeable K and 13.9 ppm available S. The experiment consisted of two ages of tiller seedlings viz. 25 and 35 days old, three levels of tiller seedling hill^-1 viz. 1, 3 and 5 seedlings hill^-1 and three levels of USG viz. 0, 1.8 and 2.7g USG. The experiment was laid out in a Randomized Complete Block Design (Factorial) with three replications. The size of unit plot was 4.0 m × 2.5 m. A high yielding variety BRRI dhan52 of transplant Aman rice was used as the test crop. Tillers were separated from 25 and 35 days after transplanting from previously transplanted rice field and then re-transplanted in the main field on 13 September 2012 according to treatments. Fertilizer P, K, S and Zn were applied @ 21, 35, 11 and 3.5 kg ha^-1 in the form of triple super phosphate (TSP), muriate of potash (MoP), gypsum and zinc sulphate respectively. TSP, MoP, gypsum and zinc sulphate were applied at the time of final land preparation. Nitrogen was applied according to experimental specification in the form of Urea Super Granules (USG) at 10 days after transplanting @ one granule 4-hill^-1 in every alternate row. Irrigation, weeding and other intercultural operations were done as and when required. The crop was harvested on 20 November 2012. Grain and straw yields were recorded from the harvest of 2.5 m x 2.0 m harvest area from the middle portion of each plot. The grain yield was adjusted to 14% moisture content and straws dried to record the straw yield. Grain yield and straw yield altogether were regarded as biological yield. The recorded data were statistically analyzed with the help of MSTAT-C software. The differences among treatment means were adjudged by Duncan's New Multiple Range Test.

Source of Information: Bangladesh J. Agril. Res. 40(4): 581-590, 2015

Article Link (Online Journal):

Funding Source:

1. International Fund for Agricultural Development (IFAD)

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Application of urea super granules 1.8 g (55 kg N ha^-1) at 10 days after transplanting @ one granule 4-hill^-1 in every alternate row with 25 day old tiller seedlings using 5 tiller seedlings hill^-1was found beneficial for grain yield of transplant Aman rice. Tiller separation could be an alternative source of seedling during seedling scarcity.

Knowledge Management: Journal