Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Growth and Yield of Boro Rice (brri Dhan 50) as Affected by Planting Geometry Under System of Rice Intensification

Sudip Chakrabortty
Dept. of Agronomy, Sher-e-Bangla Agricultural University, Dhaka

A. F. M. Jamal Uddin
Dept. of Horticulture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh.

H. Mehraj
Dept. of Horticulture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh

T. S. Roy
Dept. of Agronomy, Sher-e-Bangla Agricultural University, Dhaka

M.A.A. Mahmud
Dept. of Animal Nutrition, Sylhet Agricultural University, Sylhet

P. K. Biswas
Dept. of Agronomy, Sher-e-Bangla Agricultural University, Dhaka

Abstract/ Executive Summary:

Rice (Oryza sativa L.) is the staple crop in Bangladesh and different factors influence its productivity. Among these factors, desired number of plant spacing per unit area is important for higher yield attainment.Therefore, this study were undertaken to define the optimum plant geometry for getting the maximum yield. The experiment was conducted at Agronomy field, Sher-e-Bangla Agricultural University during December, 2011 to May, 2012 to study the growth and yield of Boro rice (BRRI dhan 50) as affected by planting geometry under System of Rice Intensification (SRI). Experiment comprised 5 level of plant spacing, viz. S₁: 25 cm × 25 cm, S₂: 30 cm × 30 cm, S₃: 35 cm × 35 cm, S₄: 40 cm × 40 cm and S₅: 25 cm × 15 cm following Completely Randomized Block Design with three replication. Maximum dry matter (156.2 g/hill), number of tiller (44.0/hill), number of effective tiller (36.3/hill), number of filled grains (101.5/panicle), grain yield (6.9 t/ha), straw yield (5.9 t/ha), biological yield (12.7 t/ha) and harvest index (54.5%) was found from 40 x 40 cm plant spacing while minimum was observed from 25 x 25 cm of plant spacing in this study.

Keywords: Oryza sativa, Planting Geometry, Growth and Yield

Location: Agronomy farm, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh

Start Date: 00-12-2011

End Date: 00-05-2012

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

To determine the optimum plant geometry for getting the maximum yield in BRRI Dhan 50.

Methodology:

This experiment was conducted in Agronomy farm, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh from December, 2011 to May , 2012. Experiment consisted five different plant spacing viz. S₁: 25 cm × 25 cm, S₂: 30 cm × 30 cm, S₃: 35 cm × 35 cm, S₄: 40 cm × 40 cm and S₅: 25 cm × 15 cm following Completely Randomized Block Design with three replications. The seeds of BRRI Dhan 50 were collected from Bangladesh Rice Research Institute (BRRI), Joydebpur, Gazipur. The fertilizers N, P, K, S, Zn and B in the form of urea (150 kg ha^-1), TSP (100 kg ha^-1), MP (kgha^-1), gypsum (60 kg ha^-1), zinc sulphate (10 kg ha^-1) and borax (10 kg ha^-1) respectively were applied. Entire amount of TSP, MP, gypsum, zinc sulphate and borax were applied during final preparation of plot land. Mixture of cowdung and compost (10tha^-1) was applied during 15 days before transplantation. Urea was applied in three equal installments at after recovery, tillering and before panicle initiation. Data were collected on plant height, number of tillers/hill, leaf area index, dry matter/hill, effective tillers/hill, ineffective tillers/hill, panicle length, filled grains/panicle, unfilled grains/panicle, weight of 1000-grains, grain yield, straw yield, biological yield, harvest index, weed population/m² and weed dry matter/m². Leaf area index measured manually and final data calculated multiplying by a correction factor 0.75. Collected plants including roots (after uprooting), leaves, grain and straw were oven dried at 70⁰C for 72 hours then transferred into desiccator and allowed to cool down at room temperature, final weight was taken and converted into dry matter content/hill. The biological yield and Harvest Index (HI) was calculated. Collected data were statistically analyzed using IRRISTAT software to observe the significant difference among the treatments. The mean values of all the characters were calculated and analysis of variance was performed. The significance of the difference among the treatment means was estimated by the Least Significant Difference (LSD) test at 5% level of probability.

Source of Information: Journal of Bioscience and Agriculture Research Vol. 02(01): 36-43, 2014, Online ISSN 2312-7945

Article Link (Online Journal): http://www.journalbinet.com/uploads/2/1/0/0/21005390/growth_and_yield_of_boro_rice_brri_dhan_50_as_affected_by_planting_geometry_under_system_of_rice_intensification.pdf

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Plant spacing 40 cm × 40 cm is optimum for growth and maximum yield of rice under System of Rice Intensification (SRI). Growth and yield contributing characters such as maximum dry matter (156.2 g/hill), number of tiller (44.0/hill), number of effective tiller (36.3/hill), number of filled grains (101.5/panicle), grain yield (6.9 t/ha), straw yield (5.9 t/ha), biological yield (12.7 t/ha) and harvest index (54.5%) was found best from 40 x 40 cm plant spacing while minimum was observed from 25 x 25 cm of plant spacing.

Knowledge Management: Journal