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Effect of Hill Density and Number of Seedlings Hill-1 on the Yield and Yield Components of Fine Rice Cv. Kalizira

M.R. Islam
Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

M.A. Salam
Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

M.A. Hannan
Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

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

Abstract/ Executive Summary:

The experiment was conducted at the Bangladesh Agricultural University Farm, Mymensingh during the period from July to December 1998 to investigate the effect of hill density and number of seedlings hill^-1 on the yield performance of fine rice CV. Kalizira. The experiment included three hill densities viz., 25 cm x 20 cm, 25 cm x 15 cm and 25 cm x 10 cm, and two levels of seedlings hill^-1 viz., two seedlings hill^-1 and four seedlings hill^-1. The highest grain yield was recorded from 25 cm x 20 cm spacing and two seedlings hill^-1. From the interaction it is observed that 25 cm x 20 cm spacing with four seedlings hill^-1 produced the highest grain yield.

Keywords: Hill density, Seedling number, Fine rice

Location: Bangladesh Agricultural University Farm, Mymensingh

Start Date: 00-07-1998

End Date: 00-12-1998

Program Area: Crop-Soil-Water Management

Non-commodity: Performance

Objectives:

To find out the effect of hill density and number of seedlings hill^-1 on the yield and yield components of fine rice.

Methodology:

The experiment was conducted at the Bangladesh Agricultural University Farm, Mymensingh during the period from July to December 1998. The land topography was high having sandy loam soil belonging to the Old Brahmaputra Floodplain soil type. The experiment included two factors viz., a) hill density- (i) 25 cm x 20 cm, (ii) 25 cm x 15 cm and (iii) 25 cm x 10 cm and b) number of seedlings hill^-1 (i) two seedlings hill^-1 and (ii) four seedlings hill^{- 1}. The experiment was laid out in a randomized complete block design with three replications. The size of the unit plot was 4 m x 2.5 m. After a few days the land was further ploughed and cross ploughed by country plough followed by laddering to level the soil. Weeds and stubble were removed from the field prior to transplanting of seedlings. Cowdung was applied @ 5 t ha^-1 during the time of land preparation. In addition; the crop was fertilized with P₂0₅, K₂0, S and Zn at the rate of 60-40-60-5 kg ha^-1 at final land preparation in the form of urea, TSP, MP, gypsum and zinc sulphate, respectively. The crop was fertilized with nitrogen in the form of urea at the rate of 90 kg urea ha^{- 1}. One-third of nitrogen was applied at final land preparation. Rest of nitrogen was top dressed in three equal splits at 10, 25 and 45 days after transplanting (DAT). Thirty five day old seedlings were transplanted in the main field on 23 August 1998. The experimental field was weeded thrice at 20, 40 and 65 DAT to keep the weed competition at minimum level. The crop was irrigated twice during the growth period on 15 September and 19 October 1998. No pest infestation was observed during the study period. The crop was harvested at full maturity on 9 December 2002. Each plot was harvested separately and the yields of both grain and straw were recorded. Data pertaining to plant characters were taken from randomly selected hills. The 1000-grain weight was taken from dried grain samples of each unit plot. Data on plant height, total tillers hill^-1, effective tillers hill^-1, non-effective tillers hill^-1, 1000-grain weight, grain and straw yields, biological yield and harvest index were recorded. Collected data were analyzed using "Analysis of Variance" technique and the mean differences were adjudged with Duncan's Multiple Range Test.

Source of Information: Bangladesh J. Agril. Sci. 29(2): 325-328, July, 2002

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Interaction effect of hill density and number of seedlings hill^-1 failed to show any significant influence on the yield parameter except grain yield. The highest grain yield (2.39 t ha^-1 was obtained from 25 cm x 20 cm spacing with four seedlings hill^-1 which was statistically identical with 25 cm x 10 cm spacing and two seedlings hill^-1 (2.30 t ha^-1), 25 cm x 20 cm with two seedlings hill^-1 (2.19 t ha^-1 ) and 25 cm x 15 cm with two seedlings hill^-1 (2.04 t ha^-1) . The lowest grain yield (1.81 t ha^-1} was recorded in 25 cm x 10 cm with two seedlings hill^-1. From the results of the study it may be concluded that cultivation of Kalizira variety of fine rice at a spacing of 25 cm x 20 cm with four seedlings hill^-1 appeared the promising practice to produce better yield of grains.

Knowledge Management: Journal