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Influence of Rice Straw and Water Hyacinth Incorporation on the Performance of Boro Rice

M. A. Al-Mamun
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka (1207), Bangladesh

P. K. Biswas
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka (1207), Bangladesh

M. F. Karim
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka (1207), Bangladesh

M. Hasanuzzaman
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka (1207), Bangladesh

A. Rahman
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka (1207), Bangladesh

Abstract/ Executive Summary:

The experiment was conducted at the Agronomy field, Sher-e-Bangla Agricultural University, Dhaka from November, 2009 to May, 2010 to find out the effect of rice straw and water hyacinth incorporation into the soil on the performance of Boro rice. The treatments of the experiment consisted of two rice varieties viz., BRRI dhan29 and BRRI hybrid dhan2, two biomass materials viz., rice straw and water hyacinth and three levels of biomass concentration viz., control (no biomass), 0.5 kg biomass m^-2 and 1.0 kg biomass m^-2. The experiment was laid out in a double split plot design with three replications having varieties in the main plot, biomass materials in the sub plot and concentrations in the sub sub-plot. Significantly higher grain yield of rice (6.90 t ha^-1) and harvest index (49.27) was obtained from BRRI hybrid dhan2 as compared to BRRI dhan29 (6.08 t ha^-1 and 41.27) , however, significantly higher straw yield (8.64 t ha^-1) was registered with the latter variety.

Keywords: Rice straw, Water hyacinth, Hybrid rice

Location: Agronomy field, Sher-e-Bangla Agricultural University, Dhaka

Start Date: 00-11-2009

End Date: 00-05-2010

Program Area: Variety and Species

Commodity: Rice

Objectives:

To find out the effect of rice straw and water hyacinth incorporation into the soil on the performance of Boro rice.

Methodology:

The field experiment was conducted at the Agronomy field, Sher-e-Bangla Agricultural University (SAU), under the agro-ecological zone of Modhupur Tract, AEZ-28, during Boro season (November to May) 2009-2010 with a view to finding out the effect of rice straw and water hyacinth biomass on the area was located at 24⁰75^/ N and 90⁰50^/ E longitude at the elevation of above 8.6 m the sea level. The farm belongs to the Shallow Red Brown Terrace Soils under Tejgaon Series. The experiment was laid out on double split-plot design with three replications having variety in the main plot and biomass materials in the sub plot and concentration of biomass materials in sub sub-plot. There were two varieties viz., BRRI dhan29, BRRI hybrid dhan2, two biomass materials viz., Rice straw and water hyacinth and three concentration viz., control (no biomass application), application of 0.50 kg and 1.00 kg biomass m^-2. The experimental plots were fertilized with 5 t ha^-1 cowdung 15 days before transplanting, 120, 40, 45, 5 and 5 kg ha^-1 of N (urea), P₂O₅ (TSP), K₂O (MoP), S (gypsum) and Zn (Zinc sulphate), respectively applied during final land preparation except urea. Urea top dressed in 3 equal splits at 7, 33 and 55 DAT. Pre-germinated seeds of BRRI dhan29 and BRRI hybrid dhan2 were sown in the wet seedbed and proper care was taken to raise the seedlings in seedbed. Thirty days old seedling was transplanted maintaining the spacing of 25 cm × 15 cm on the well puddled plots. Intercultural operations were done when necessary. Maturity of crop was determined when 90% of the grains become golden yellow in color. Three square meters at centre of each plot was harvested, dried, threshed and adjusted at 12% moisture content to estimate the grain yield. The yield contributing characters viz. number of effective tillers hill^-1, number of grains panicle^-1 and 1000-grain weight was recorded from plant samples. The data were analyzed statistically using the IRRISTAT computer package program developed by IRRI. The mean differences among the treatments were compared by Least Significant Difference Test (LSD) at 5% level of significance.

Source of Information: International Journal of Bio-resource and Stress Management , 4(2):000-000, (2013)

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Hybrid variety gave 12.14% higher grain yield than inbred variety. Application of rice straw in inbred variety decreased the grain yield but in case of hybrid variety, water hyacinth showed positive impact in respect of yield and other yield attributes.

Knowledge Management: Journal