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Effect of Variety and Water Management on the Growth and Yeld of Boro Rice

S Murshida
Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

M R Uddin
Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

M P Anwar
Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

U K Sarker
Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

M M Islam
Agriculture Training Institute, Rangamati, Bangladesh

M M I Haque
ACI Limited, Dhaka, Bangladesh

Abstract/ Executive Summary:

An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during December 2014 to May 2015 to examine the effect of variety and water management system on the growth and yield performance of boro rice. The experiment consisted of three varieties (cv. BRRI dhan28, BRRI dhan29 and Binadhan-14) and four water management systems (viz. Traditional flooding, non-flooded rice straw mulching, non-flooded water hyacinth mulching and non-flooded no mulching). The experiment was laid out in a split plot design with three replications. Different growth characters, yield and yield contributing characters of boro rice were found to the significantly influenced by variety, water management system and their interactions. At 100 DAT, the highest plant height, maximum number of tillers hill^-1, dry matter of shoot hill^-1 and dry matter of root hill^-1were obtained from BRRI dhan29 and the lowest values were found in Binadhan-14. At 100 DAT, the highest plant height, maximum number of tillers hill^-1, dry matter of shoot hill^-1 and dry matter of root hill^-1 were obtained in non- flooded rice straw mulching treatment and the lowest ones were obtained from non-flooded no mulching treatment. Variety had significant effect on all the crop characters under study except 1000-grain weight. The highest grain yield was obtained from BRRI dhan29 and the lowest value was recorded from Binadhan-14. Water management system was also significantly influenced all crop characters. The highest grain yield was recorded from non-flooded rice straw mulching treatment and the lowest grain yield was found from non-flooded no mulching treatment. The interaction of variety and water management system showed that BRRI dhan29 with non-flooded rice straw mulching resulted in the highest grain yield whereas the lowest yield was observed from the interaction of Binadhan-14 with non-flooded no mulching treatment. The result of the experiment suggests that BRRI dhan29 can be grown economically with non-flooded rice straw mulching treatment.

Keywords: Rice, Water management, Flooding, Mulching

Location: Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh

Start Date: 00-12-2014

End Date: 00-05-2015

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

1. To evaluate the performance of three boro rice varieties,

2. To find out suitable water management system for boro rice cultivation,

3. to verify the effect of interaction (if any) in between variety and water management system on the performance of boro rice.

Methodology:

A field experiment was carried out at the Agronomy Field laboratory, Bangladesh Agricultural University (BAU), Mymensingh during the period from December 2014 to May 2015 in order to study the growth and yield of boro rice as affected by water management system. The experimental consisted of the following treatments. i) Rice Cultivars viz. BRRI dhan28 (V₁), BRRI dhan29 (V₂) and Binadhan-14 (V₃) ii) Water management systems viz. Traditional flooding (M₁), Non-flooded rice straw mulching (M₂), Non-flooded water hyacinth mulching (M₃) and Non-flooded no mulching (M₄). The experiment field was Non- calcareous Dark Grey Floodplain under the Agro- Ecological Region of the Old Brahmaputra Floodplain- AEZ9 (UNDP and FAO, 1988).The experiment was laid out in a split-plot design with three replications. Water management treatments were assigned to the main plot and variety to the sub plot, respectively, at random. The size of a unit plot was 10m² (4m×2.5 m). The number of plot is 36. During final land preparation each unit plot was fertilized with Triple Super Phosphate (TSP), Muriate of Potash (MOP), Gypsum and ZnSO₄ @ 90, 60, 20 and 5 kg ha^-1 respectively. Urea was applied @ 300 kg ha^-1 in three installments at 15, 30 and 45 days after transplanting (DAT). All management practices were done as and when necessary. Harvesting was done when 90% of the grains became golden (Binadhan-14), golden yellow (BRRI dhan29), fading golden (BRRI dhan28) in color. Five hills (excluding border hills) were selected randomly from each harvested plot to record the crop characters and yield components. After recording data, the grains and straws of each the sampling were added

Source of Information: Progressive Agriculture 28 (1): 26-35, 2017

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It was found that variety and water management system had significant effect on grain yield. BRRI dhan29 performed the best in respect of grain yield at non-flooded rice straw mulching treatment. BRRI dhan29, BRRI dhan28, and Binadhan-14produced the grain yields of 6.06, 5.35 and 4.31 t ha^-1 respectively at non-flooded rice straw mulching treatment. It can be concluded that BRRI dhan29 with non-flooded rice straw mulching treatment was found to be the best possible combination for achieving higher grain yield.

Knowledge Management: Journal