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Effect of Phosphorus and Sulphur on Yield of BRRI Dhan 57

M. H. Uddin
Department of Environmental ScienceBangladesh Agricultural University, Mymensingh

K. M. Rahman
Department of Environmental ScienceBangladesh Agricultural University, Mymensingh

M. Z. Rahman
Department of Agricultural Extension Education, Bangladesh Agricultural University, Mymensingh

Z. Alam
Department of Agroforestry, Bangladesh Agricultural University, Mymensingh

M. A. Salam
Department of Agricultural Chemistry,Bangladesh Agricultural University, Mymensingh

Abstract/ Executive Summary:

An experiment was conducted during the period from July, 2011 to December, 2011 to on the performance study of rice regarding to growth, yield and yield contributing characters of rice BRRI dhan 57 under the AEZ-28. The two factors experiment consists with four levels of Phosphorus (P) viz. P0: without Phosphorus (control), P1: 20 kg ha^–1, P2: 40 kg ha^–1 and P3: 60 kg ha^–1and four levels of Sulphur viz. S0: without Sulphur (control), S1: 10 kg ha^–1, S2: 20 kg ha^–1 and S3: 30 kg ha^–1. The result obtained from the study, it was found that all the traits were statistically significant due to Phosphorus whereas 40 kg P ha^–1 recorded the tallest plant (109.70 cm) at harvest and maximum tillers hill^–1 (17.58) at 85 DAT. Phosphorus @ 40 kg ha^–1 also recorded the greater results on effective tillers hill^–1 (13.67), panicle length (22.04 cm), filled grains panicle^–1 (138.60), 1000-grain weight (30.75 g), weight of grain, straw and biological yield 5.12, 8.39 and 13.51 t ha^–1, respectively and harvest index (37.85%) at harvest while without phosphorus obtained the lower results on the above. In case of Sulphur, all the traits were significant except plant height at 55, 85 DAT and at harvest, filled grains panicle^–1 and 1000-grain weight whereas 20 kg S ha^–1 obtained the tallest plant (109.40 cm) at harvest and maximum tillers hill^–1 (16.28) at 85 DAT. The maximum effective tillers hill^–1 (12.12), longest panicle (21.35), higher weight of grain, straw and biological yield 4.75, 8.08 and 12.82 t ha^–1, respectively and harvest index (36.90%) were taken in 20 kg S ha^–1 at harvest. It was also observed the minimum non effective tillers hill^–1 (2.83) and unfilled grains panicle^–1 (12.04) whereas all the Sulphur levels were produced statistically similar filled grains panicle^–1 and 1000-grain weight at harvest due to non significant variation. The present findings obviously recommended that 40 kg P ha^–1 or 20 kg S ha^–1 singly or their interactions would be optimum level for getting the higher production of BRRI dhan 57.

Keywords: BARI dhan57, Phosphorus, Sulphur, Yield

Location: BAU farm, Mymensingh

Start Date: 00-07-2011

End Date: 00-12-2011

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

1. To achieve the following objectives: to find out the appropriate doses of P and S regarding to proper growth and higher production of BRRI dhan 57, to select the most advantigious treatment combination of P and S fertilizers concerning to growth and yield of BRRI dhan57.

Methodology:

The experiment was conducted at the research farm of the period from July 2011 to December 2011 (Kharif II) to judgment out the most appropriate singly or combined doses of Phosphorus (P) and Sulphur (S) on the aspect of better growth, higher production and yield and superior quality of grain and straw of studied rice cultivar cv. BRRI dhan 57. The experimental area is situated in the sub-tropical climatic zone and characterized by heavy rainfall during the months of April to September (Kharif Season) and scanty rainfall during the rest period of the year. The seeds of BRRI dhan 57 were used as planting materials which was collected from the Bangladesh Rice Research Institute (BRRI), Joydebpur, Gazipur–1701. The experiment consisted of four doses of Phosphrus (P) and four doses of Sulphur (S) and was laid out a two factors split-plot (Phosphorus in the main plot and Sulphur in the sub-plot) in Randomized Complete Block Design (RCBD) with three replications. The size of plot was 4.0 × 3.0 m (12 m²) where block to block and plot to plot distance was 0.75 and 0.5 m, respectively. Row to row and plant to plant distance were also 20 and 20 cm, respectively, in each plot. So, the total plots were 48 (P 4 × S 4 × Replication 3). Crop Management, Seed collection, seed sprouting, preparation of seedling nursery, seed sowing, land preparation for transplanting, fertilizer application, uprooting of seedlings, transplanting of seedlings, intercultural operations, weeding, sampling and data collection, harvest and post harvest operations were done. Parameters studied 1000 grain weight (g), grain yield (t ha^–1), straw yield (t ha^–1), biological yield (t ha^–1), harvest index (%) were studies. Data recorded for yield and yield contributing characters and seed quality characters were compiled and tabulated in proper form for statistical analyses. Analysis of variance was done with the help of MSTAT–C computer package programme. The mean differences among the treatments were evaluated with DMRT test

Source of Information: J. Environ. Sci. & Natural Resources, 7(1): 7 – 11, 2014; ISSN 1999-7361

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

It was found that all the traits were statistically significant due to Phosphorus whereas 40 kg P ha^–1 recorded the tallest plant (109.70 cm) at harvest and maximum tillers hill^–1 (17.58) at 85 DAT. Phosphorus @ 40 kg ha^–1 also recorded the greater results on effective tillers hill^–1 (13.67), panicle length (22.04 cm), filled grains panicle^–1 (138.60), 1000-grain weight (30.75 g), weight of grain, straw and biological yield 5.12, 8.39 and 13.51 t ha^–1, respectively and harvest index (37.85%) at harvest while without phosphorus obtained the lower results on the above. In case of Sulphur, all the traits were significant except plant height at 55, 85 DAT and at harvest, filled grains panicle^–1 and 1000-grain weight whereas 20 kg S ha^–1 obtained the tallest plant (109.40 cm) at harvest and maximum tillers hill^–1 (16.28) at 85 DAT.

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