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Yield Performance of Soybean as Influenced by Phosphorus

R. Ali
Department of Agronomy, Bangladesh Agricultural University, Mymensingh

M.A. Kader
Department of Agronomy, Bangladesh Agricultural University, Mymensingh

A.K. Hasan
Department of Agronomy, Bangladesh Agricultural University, Mymensingh

Fatema-Tuz-Zohra
Department of Agronomy, Bangladesh Agricultural University, Mymensingh

S. Uddin
Department of Agronomy, Bangladesh Agricultural University, Mymensingh

Abstract/ Executive Summary:

An experiment was carried out at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during January to April 2012 to find out the effect of level of phosphorus on the yield performance of different varieties of soybean. The experiment comprised of four varieties viz. BARI soybean 5, BARI soybean 6, BINA soybean 1 and BINA soybean 2 and four levels of phosphorus viz. 0, 40, 80, and 120 kg P₂O₅ ha^-1. The experiment was laid out in a randomized complete block design (RCBD) with three replications. Both variety and phosphorus level had significant influence on all the plant characters except number of plants m^-2 and straw yield. The application of 80 kg P₂O₅ ha^-1 produced the highest number of filled pods(50.43), number of seeds pod^-1 (2.93), 100-seed weight (10.66 g), seed yield (1.95 t ha^-1) and stover yield (4.10 t ha^-1). The highest number of nodes plant^-1 (13.17), number of branches plant^-1 (5.10), number of filled pods (51.16), number of seeds pod^-1 (3.00), seed yield (1.96 t ha^-1)and stover yield (4.08 t ha^-1) were found in the variety BARI soybean 5. BARI soybean 5 with 80 kg P2O5 ha^-1 gave the highest grain yield. From the present study it is concluded that BARI soybean 5 with 80 kg P₂O₅ ha^-1 may be used for getting better yield of soybean.

Keywords: Phosphorus, Yield performance, Soybean

Location: Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh

Start Date: 00-01-2012

End Date: 00-04-2012

Program Area: Crop-Soil-Water Management

Commodity: Soybean

Objectives:

1. To find out the effect of phosphorus level on the yield performance of soybean.

Methodology:

The experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during the period from January to April 2012 to study effect of level of phosphorus on the yield performance of different varieties of soybean. The site belongs to the Old Brahmaputra Floodplain Agro-Ecological Zone (AEZ-9). The soil was sandy loam having 0.0585% total N, 0.463% organic matter, 23 ppm available P, 5.0 ppm available S & 0.13 ppm exchangeable K. The experiment comprised of four varieties viz. BARI soybean 5 (V₁), BARI soybean 6 (V₂), BINA soybean 1(V₃) and BINA soybean 2 (V₄) and four levels of phosphorus viz. 0 (P₀), 40 (P₁), 80 (P₂), and 120 (P₃) kg P₂O₅ ha^-1. The experiment was laid out in a randomized complete block design (RCBD) with three replications. The entire experimental area was divided into three blocks representing the replications and each was sub-divided into 16 plots. The unit plot size was (2.5m x 2 m). The experimental field was first opened with a power tiller on 27 December, 2011. Each unit plot was fertilized with N, K2O and gypsum at the rate of 50, 50 and 90 kg ha^-1, respectively in form of urea, muriate of potash and gypsum at the time of final land preparation. Phosphorus was applied in the form of TSP at the time of final land preparation as per experimental specifications. The seeds were then treated with 20g of inoculums kg^-1 seed to develop proper coating as a general dose for the seeds of all varieties as per instruction of Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh. The seeds were sown on 3 January immediately after inoculation. Crop management practices such as weeding, thinning, irrigation, insect and pest control were done as per requirements. At physiological maturity ten plants plot^-1 were collected randomly, sun dried and plant height (cm), number of nodes plant^-1, number of branches plant^-1, number of filled pods plant^-1, number of unfilled pods plant^-1, number of seeds pod^-1, Number of plants m^-2, 100-seed weight (g), seed yield (t ha^-1) and stover yield (t ha^-1). Data were analyzed using analysis of variance (ANOVA) technique with the help of computer package program and differences were adjudged by Duncan Multiple Range Test.

Source of Information: J. Agrofor. Environ. 7 (1): 45-48, 2013; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Both variety and phosphorus level had significant influence on all the plant characters except number of plants m^-2 and straw yield. The application of 80 kg P₂O₅ ha^-1 produced the highest number of filled pods(50.43), number of seeds pod^-1 (2.93), 100-seed weight (10.66 g), seed yield (1.95 t ha^-1) and stover yield (4.10 t ha^-1). The highest number of nodes plant^-1 (13.17), number of branches plant^-1 (5.10), number of filled pods (51.16), number of seeds pod^-1 (3.00), seed yield (1.96 t ha^-1)and stover yield (4.08 t ha^-1) were found in the variety BARI soybean 5. BARI soybean 5 with 80 kg P₂O₅ ha^-1 gave the highest grain yield. From the present study it is concluded that BARI soybean 5 with 80 kg P₂O₅ ha^-1 may be used for getting better yield of soybean.

Knowledge Management: Journal