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Effect of Phosphorus and Sulphur on Growth and Yield of Soybean (glycine Max L.)

Fahmina Akter*
Depertment of Soil Science, Sher-e-Bangla Agricultural University, Dhaka (1207), Bangladesh

Md. Nurul Islam
Depertment of Soil Science, Sher-e-Bangla Agricultural University, Dhaka (1207), Bangladesh

A. T. M. Shamsuddoha
Depertment of Soil Science, Sher-e-Bangla Agricultural University, Dhaka (1207), Bangladesh

M. S. I. Bhuiyan
Depertment of Soil Science, Sher-e-Bangla Agricultural University, Dhaka (1207), Bangladesh

Sonia Shilpi
Depertment of Soil Science, Sher-e-Bangla Agricultural University, Dhaka (120), Bangladesh

Abstract/ Executive Summary:

A field experiment was conducted at Sher-e-Bangla Agricultural University Farm, Dhaka, Bangladesh from December 2008 to April 2009 to evaluate the effect of P (viz. 0, 15, 30, 50 kg P2 O5 ha^-1) and S (viz. 0, 10, 20, 40 kg S ha^-1) and their interaction on the growth and yield of soybean (Glycine max L.). Individual application of different levels of phosphorus and sulphur showed a significant effect on yield and yield attributes studied. Among them, plant height, the number of primary branch plant^-1, the number of leaves plant^-1, stover yield increased significantly up to 50 kg P ha^-1. On the other hand, numbers of pods plant^-1, the number of seeds plant^-1, thousand seed weight, grain yield, biological yield increased significantly up to 30 kg P ha^-1. However, in the case of S, the positive response was observed only up to 20 kg S ha^-1. The combined application of phosphorus @ 30 kg P ha^-1 and sulphur @ 20 kg S ha^-1 gave rise to the highest number of pods plant^-1 (30.07), number of seeds plant^-1 (84.94), thousand seed weight ( 94.61 g), and in turn produced highest grain yield (2.29 t ha^-1). Thus, the combined application of 30 kg Phosphorus ha-1 and 20 kg Sulphur ha^-1 may be considered to be optimum for getting a higher yield of soybean.

Keywords: Soybean, Phosphopus, Sulphur, yield

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Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Fertilizer, Soybean

Objectives:

A field experiment was conducted to observe the interaction effect of P and S on the growth and yield of soybean and to find out the optimum doses of P and S for maximum growth and yield of soybean.

Methodology:

In order to study the role of P and S in influencing the growth and yield of soybean, an experiment was conducted at the Sher-e-Bangla Agricultural University Farm, Dhaka 1207 (Tejgaon series under AEZ No. 28) during the rabi season of 2008- 2009. The experimental site was located at 23o 77 N latitude and 90o 3 E longitudes with an elevation of 1.0 meter from the sea level. The temperature during the cropping period ranged between 12.20^o C to 29.2^o C, the humidity 73.52% to 81.25% with 10.5-11.0 hours day length and very little rainfall was recorded. The surface (0-15 cm) soil of the experimental site was sandy loamy with pH 6.4, organic carbon 0.78%, total nitrogen 0.062%, available phosphorus 20.54 kg ha^-1, sulphur 39.24 kg ha^-1 and potassium 88.92 kg ha^-1. The soil type was deep red-brown terrace soils and the textural class is silty clay loam. The experiment was laid out in randomized block design with the factorial concept, each plot measuring 2.5×2.0 (5 m2 ) with 3 replications. The experiment comprised of 2 factors viz.; 4 levels of phosphorus: P0 =0 kg P ha^-1, P1 =15 kg P ha^-1, P2 =30 kg P ha^-1, P3 =50 kg P ha^-1 and 4 levels of sulphur: S0 =0 kg S ha^-1, S1 =10 kg S ha^-1, S2 =20 kg S ha^-1, S3 =40 kg S ha^-1. BARI Soybean-5, a high-yielding variety of soybean was used as the test crop in this experiment. The adjacent block and neighboring plots were separated by 1.0 m and 0.5 m, respectively. Recommended doses of N, K, Zn and B (30 kg N ha^-1 from urea, 40 kg K ha^-1 from MOP, 2 kg Zn ha^-1 from ZnO and 1 kg B ha-1from Boric acid, respectively) were applied. Soybean seeds were sown in lines with a spacing of 30×5 cm² on 27th December 2008. All other recommended agronomic practices were followed. The crop was harvested at maturity on 14th April 2009. The data on growth and yield parameters were recorded and analyzed statistically to find out the treatment difference and the mean differences were compared using DMRT (Gomez and Gomez, 1984).

Source of Information: International Journal of Bio-resource and Stress Management 2013, 4(4):555-560

Article Link (Online Journal):

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Total Budget (Tk.) :

Achievement/Findings:

Combined application of 30 kg P ha-1 and 20 kg S ha-1 may be recommended for getting higher grain yield of soybean because of their synergistic effect on yield attributing characters and grain yield. It is wise and economic to use the optimum dose of phosphorus and sulphur for maximum yield of Soybean.

Knowledge Management: Journal