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

Interactive Effect of Variety and Potassium Fertilizer on the Yield of Salt-tolerant Boro Rice

Kawsar Hossen
Department of Agriculture, Noakhali Science and Technology University, Noakhali, Bangladesh

Sadia Sultana
Department of Agriculture, Noakhali Science and Technology University, Noakhali, Bangladesh

Md. Mahfuzar Rahman
Department of Agriculture, Noakhali Science and Technology University, Noakhali, Bangladesh

Ruhul Amin Rana
Department of Agriculture, Noakhali Science and Technology University, Noakhali, Bangladesh

Tahmina Ferdous
Department of Agricultural Economics, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh

Akhinur Shila
Department of Agricultural Botany, Patuakhali Science and Technology University, Patuakhali, Bangladesh

Rayhan Ahmed*
Department of Agriculture, Noakhali Science and Technology University, Noakhali, Bangladesh

Abstract/ Executive Summary:

Performance of salt-tolerant Boro rice was investigated under the interaction effect of variety and different doses of potassium fertilizer, which is a part of the research for developing agriculture in coastal areas of Bangladesh. A field experiment was conducted at the research field of Agriculture department, Noakhali Science and Technology University (NSTU), Noakhali-3814. The experiment was carried out in a Randomized Complete Block Design (RCBD) with three replications where two varieties viz. BINA dhan-8, BRRI dhan-28 and three doses of potassium viz. 120 kg/ha, 84 kg/ha and 36kg/ha were used as treatments. Plant height (cm), tillers/hill, grain/panicle, 1000 grain weight (g), grain yield (t/ha), straw yield (t/ha) and harvest index (%) were compared among varieties and treatments. Results revealed that only variety and only potassium fertilizer had non-significant influence but the interaction of variety and potassium fertilizer had a significant effect on the performance of salt-tolerant Boro rice. Therefore, the present study suggests that salt-tolerant BINA dhan-8 variety may be cultivated with 120 kg potassium/ha for obtaining higher yield in the southern coastal area of Bangladesh.

Keywords: Boro rice; Coastal area; Variety; Potassium; Interaction

Location: Research field of Agriculture department, Noakhali Science and Technology University (NSTU), Noakhali-3814

Start Date: 00-11-2018

End Date: 00-05-2019

Program Area: Crop-Soil-Water Management

Commodity: Fertilizer, Rice

Objectives:

The present study was undertaken to observe the varietal performance of Boro rice, to evaluate the effect of rate of potassium on the yield of Boro rice and for assessing the interaction effect of variety and rate of potassium.

Methodology:

Location and time The experiment was carried out at the research field of Agriculture department, Noakhali Science and Technology University (NSTU), Noakhali-3814 from November 2018 to May 2019. The experimental field belongs to the agro-ecological region of the Young Meghna Estuarine Floodplain (AEZ-18). The experiment field was almost level having sandy loam soil and moderately alkaline (SRDI, Noakhali), with pH value 7.5 and electrical conductivity 0.91 dS. The pH value was measured by a pH Meter (HachsensI ON+ PH1 Basic Portable pH Meter) and electrical conductivity by an EC meter (sensION+ EC7). The experimental area is under the tropical climate with an average annual temperature of 25.6°C and the average annual rainfall about 3,302 mm (Weather Station, Maizdee, Noakhali). Experimental treatments and design Two factors included in the experiment were as follows: Factor A: Variety (2); V1-BINA dhan-8, V2-BRRI dhan-28 and Factor B: Treatments (3); T1-120kg K/ha, T2-84kg K/ha, T3-36kg K/ha. Seeds of BINA dhan-8 were collected from Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh-2202 and BRRI dhan-28 were collected from Bangladesh Rice Research Institute (BRRI), Gazipur, Bangladesh. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. The size of the unit plot was 3.0 m × 2.0 m, having an area of 6 m². Thus the total number of the unit plot was 18 (3×3×2). A spacing of 1.0 m and 0.5 m was maintained between the replications and unit plot respectively. Raising of seedlings The collected seeds were soaked in the water for 24 hours. Then they were taken out of the water, covered with wet gunny bags and kept for sprouting. The seed started sprouting after 48 hours and almost all seeds were sprouted after 72 hours. Pre-germinated seeds of the variety BINA dhan-8 and BRRI dhan-28 were broadcasted uniformly in a well-prepared nursery bed on 16 December 2018. Land preparation and fertilization The land was prepared by plowing and cross-plowing by a tractor and subsequently leveled by laddering. The field was fertilized with triple superphosphate (TSP), gypsum and zinc sulfate at the rate of 120kg, 120 kg and 60kg per hector respectively during land preparation and urea (220 kg per hector) was applied as top dressing in three equal splits at 15, 30 and 45 days after transplanting (DAT). Muriate of potash was applied as per treatment (T1-120kg K/ha, T2-84kg K/ha, T3-36kg K/ha). Uprooting and transplanting of seedlings Seedlings were uprooted carefully from the nursery bed and were transplanted in the unit plots on 25 January 2019 maintaining the spacing of 25cm × 15 cm (row to row and plant to plant) at the rate of 1-2 seedlings/hill. Two hand weeding was done at 20 and 35 days after transplanting (DAT). The field was irrigated from the nearest water source (pond) by irrigation devices when necessary. Data collection and analysis Ten hills (excluding border hills) were selected randomly from each unit plot and uprooted before harvesting for recording data. Harvesting was done when 90% of the grain became golden yellow in color. The harvested crop of each unit area was separately bundled, properly tagged and then brought to the threshing floor. The harvested crop was threshed by pedal thrasher. Grains were then sun-dried at 14% moisture level and cleaned. Straws were also sun-dried properly. Data were collected on plant height (cm), tillers/hill, grain/panicle, 1000 grain weight (g), grain yield (t/ha), straw yield (t/ha) and harvest index (%). Plant height (selected ten plants) was measured from the ground level to the tip of the longest panicle. Tillers that had at least one leaf visible were counted.Presence of any food material in the spikelet was considered as grain and the number of grain present in each panicle was counted. One thousand clean dried seed from the seed lot of each unit area were counted separately and weight by an electrical balance. The grain and straw yield per plot was recorded and finally converted to t/ha. Harvest index is the ratio of the economic yield to the total biological yield of a crop and was calculated with the following formula.Harvest index (%) =(Grain yield ÷ Biological yield) × 100. Where, Economic yield = Grain yield and Biological yield = Grain yield + Straw yield. Data recorded for growth, yield and yield contributing characters were compiled and tabulated in proper form for statistical analyses. Analysis of variance was done with the help of R-Studio.

Source of Information: Asian Australas. J. Biosci. Biotechnol. 2020, 5(1), 21-26 ISSN 2414-1283 (Print) 2414-6293 (Online)

Article Link (Online Journal): www.ebupress.com/journal/aajbb

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The only variety and potassium fertilizer doses had a non-significant effect but the interaction of variety and potassium fertilizer doses had a significant influence on yield and yield contributing characters of Boro rice. After considering all results as references, we can conclude that the highest yield obtained from the combination of BINA dhan-8 variety and treatment 120 kg potassium/ha. However, to attain a final decision more research work on Boro rice with the same treatment should be done indifferent Agro-ecological Zones (AEZs) of Bangladesh.

Knowledge Management: Journal