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Yield Contributing Characters of BRRI Dhan49 as Influenced by Integrated Use of Banana Leaves with Inorganic Potassium Fertilizer

Md. Abdul Mannan
Department of Soil Science, Bangladesh Agricultural University, Bangladesh

Md. Sohanur Rahman
Scientific Officer
Department of Entomology, Pest Management Division, Bangladesh Jute Research Institute, Dhaka, Bangladesh

Abstract/ Executive Summary:

A field experiment was carried out at the Soil Science Field Laboratory of Bangladesh Agricultural University (BAU), Mymensingh during aman season of 2014 to study the integrated use of banana leaves with inorganic potassium fertilizer on the growth and yield of BRRI dhan49 following Randomized Complete Block Design (RCBD) with eight treatments and three replications. The highest plant height (85.55cm), panicle length (21.46cm), number of effective tillers hill-1 (11.54), number of filled grains panicle-1 (149.53), 1000-grain weight (21.85gm), grain yields (5.66 t ha-1) and straw yield (6.81 t ha-1) were obtained in the treatment T3 and the lowest plant height (77.10cm), panicle length (18.85cm), number of effective tillers hill-1 (8.64), number of filled grains panicle-1 (112.11), 1000-grain weight (19.96gm), grain yields (3.50 t ha-1) and straw yield (4.73 t ha-1) were recorded in the control. It can be recommended to integrated use of 50% K from banana leaves+50% K from MoP on growth and yield of BRRI dhan49.

Keywords: Yield Contributing Characters; Banana Leaves; Potassium Fertilizer, BRRI Dhan49.

Location: Department of Soil Science, Bangladesh Agricultural University, Bangladesh

Start Date: 00-01-2014

End Date: 00-12-2014

Program Area: Crop-Soil-Water Management

Commodity: Organic fertilizer, Rice

Objectives:

The present investigation was undertaken to study the effect of integrated use of banana leaves with inorganic fertilizer on the yield and yield contributing characters of rice.

Methodology:

2.1. Experimental site and soil: The experiment was set up at Soil Science Field laboratory of Bangladesh Agricultural University, Mymensingh during the Aman season of 2014. The soil belongs to the sonatola series of Non- calcarieous Dark Gray Floodplain soils under the AEZ 9 (Old Brahrnaputra Floodplain). The land was moderately well-drained and soil was silt loam in texture.
2.2. Rice crop, as a test materials: BRRI dhan49, a high-yielding variety of rice was test crop in this experiment. It is a high yielding rice variety, resistant to waterlogging developed by Bangladesh Rice Research Institute (BRRI), Joydebpur, Gazipur, and approved by National Seed Board (NSB) in 2008. Life cycle of this variety ranges from 132-135 days. It may vary due to climatic changes. Height of mature plants are 100-104 cm. The average grain yield of the variety generally lies between 5 to 5.5 t ha-1. This variety is somewhat resistant to pests and diseases especially stem rot, sheath blight and leaf blight.
2.3. Layout of the experiment: The experiment was laid out in a Randomized Complete Block Design (RCBD), where the experimental area was divided into 3 blocks representing the replications to reduce soil heterogenetic effects. Each block was divided into 8 unit plots with raised dyke treatments. Thus the total number of unit plots were 24. The unit plot size was 10 m2 and plots were separated from each other by dyke. Unit blocks were separated from each other by 30 cm ails. Treatments were randomly distributed within the blocks.
2.4. Treatments; There were 8 treatments out of which one was a fully recommended dose of fertilizers. Only six included banana leaf litter and Potassium in different combinations with K containing fertilizer having a fixed quantity of nitrogen and phosphorus. There was also one control treatment in which no fertilizer was used. The treatment combinations used for the experiment were as follows:
T1 = Control (No fertilizer)
T2 = 100% Recommended Fertilizer Dose
T3 = 50% K from banana leaves + 50% K from MoP
T4 = 60% K from banana leaves + 40% K from MoP
T5 = 70% K from banana leaves + 30% K from MoP
T6 = 80% K from banana leaves+ 20% K from MoP
T7 = 90% K from banana leaves +10% K from MoP
T8= 100% K from banana leaves
2.5. Manures and Fertilizer application: Air-dried Banana leaves were incorporated @ 30 kg ha-1 (equivalent 50% K), 36 kg ha-1 (equivalent 60% K), 42 kg ha-1 (equivalent 70% K) 48 kg ha-1 (equivalent 80% K), 54 kg ha-1 90% K) 60 kg ha-1 as per treatments at 15 days before transplanting of the rice seedlings. The banana leaves were mixed thoroughly with the soil. Recommended nitrogen @ 100 kg ha-1 from urea was applied in three equal splits as per treatment. The first dose of urea was applied 15 days after transplanting. The remaining doses of urea were top-dressed at 32 days (active tillering stage) and 56 days (panicle initiation stage) after transplanting. P, K and S were applied @ 20, 60, and 12 kg ha-1 from triple superphosphate, muriate of potash, and gypsum respectively in all the plots except control as a basal dose.
2.6. Collection and procedure of recording data: 5 hills were randomly selected from each plot at maturity to record the yield contributing characters like plant height (cm), number of effective tillers hill-1, panicle length (cm), number of filled grains panicle-1 and 1000-grain weight (g). Grain and straw yields were recorded plot-wise and expressed as sundry basis.
2.6.1. Plant height: The plant height was measured from the ground level to the top of the panicle. From each plot, plants of 5 hills were measured and averaged.
2.6.2. Panicle length: Measurement was done from the basal node of the rachis to the apex of each panicle. Each observation was an average of 5 hills.
2.6.3. Number of effective tillers hill-1: Five hills were taken randomly from each plot and a total number of tillers hill-1 was recorded. The number of effective tillers hill-1 was also recorded.

2.6.4. Filled grains panicle-1: Five panicles were taken randomly and the filled grains panicle-1 were counted and averaged.
2.6.5. 1000 grain weight: 1000-grains were taken from each plot and weighed in an electrical balance.
2.6.6. Grain and straw yields: Grain and straw yields were obtained from each plot and weighed carefully. The yields were expressed as t ha-1 on 14% moisture basis.
2.7. Statistical analysis: The collected data were analyzed statistically by F-test to examine the treatment effects and the mean differences were adjudged by Duncan's Multiple Range Test (DMRT) (Gomez and Gomez, 1984) and ranking was indicated by letters.

Source of Information: International Journal of Advanced Geosciences, 8 (2) (2020) 272-278

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Achievement/Findings:

It may be concluded from the results that the application of banana leaves with chemical fertilizers have a positive impact on the growth and yield contributing characters of rice. Among the treatments, T3 (50% K from banana leaves + 50% K from MoP) had a better performance on the grain and straw yields in comparison to chemical fertilizers alone. Therefore, banana leaves with inorganic fertilizer will be rewarding as a supplement to the organic source of potassium in rice cultivation. The present study also revealed that external use of potassium fertilizer could be reduced through the use of banana leaves which will be economical.

Knowledge Management: Journal