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Effect of Nitrogen and Phosphorus on the Growth and Yield Performance of Soybean

Mst. Anjumanara Begum
Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Md. Aminul Islam
On Farm Research Division, Bangladesh Agricultural Research Institute, Pabna-6600, Bangladesh

Quazi Maruf Ahmed
Regional Horticultural Research Station, Bangladesh Agricultural Research Institute Narshingdi-1600, Bangladesh

Md. Anwarul Islam
Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Md. Moshiur Rahman
Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Abstract/ Executive Summary:

The experiment was conducted at the Agronomy Field Laboratory of Bangladesh Agricultural University, Mymensingh to study the effects of nitrogen and phosphorus on the performance of soybean. Three levels of nitrogen (0, 25 and 40 kg N ha ^-1 ) and four levels of phosphorus (0, 18, 36 and 54 kg P ha ^-1 ) were considered as treatment for the experiment. Soybean responded remarkably to the added nitrogenous and phosphatic fertilizers as the crop characters were significantly influenced by different levels of nitrogen and phosphorus. Significant effect on number of branches and seeds plant ^-1 , plant height, number of filled pods plant ^-1, weight of seeds plant ^-1, dry weight of plant, stover weight plant ^-1, 1000-seed weight, seed and stover yield were obtained from the combined application of 25 kg N with 54 kg P ha ^-1.

Keywords: Nitrogen, Phosphorus, Production, Soybean

Location: Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh

Start Date: 05-01-2009

End Date: 20-04-2009

Program Area: Crop-Soil-Water Management

Commodity: Fertilizer, Soybean

Objectives:

To find out proper amount of nitrogen and phosphorus required for achieving better yield of soybean.
To evaluate the effect of different levels of nitrogen and phosphorus and their interaction on the yield of soybean.

Methodology:

The experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during 5 January to 20 April, 2009 to study the effects of rate of nitrogen and phosphorus on the yield of soybean. The experimental field was a high land having sandy loam soil with pH 6.9. The initial soil (0-15 cm depth) test result showed that the soil contained 0.058% total N, 0.463% organic matter, 23 ppm available P, 5.0 ppm available S and 0.13 ppm exchangeable K. Three levels of nitrogen (0, 25 and 40 kg N ha ^-1 ) and four levels of phosphorus (0, 18, 36 and 54 kg P ha ^-1 ) were considered as treatment for the experiment. The experiment was laid out in a randomized complete block design with three replications. Urea & TSP were used as the source of N & P, respectively. Half of the N and whole of P were applied as basal on 5 January 2009 as per treatment in the individual plots. Besides, MoP and gypsum were applied @ 120 and 115 kg ha ^-1, respectively on the same date. Inoculum @ 50 g kg ^-1 of seed was mixed with seed prior to sowing. The remaining half of the N was top dressed at 25 days after sowing. Weeding followed by thinning was done simultaneously twice at 21 and 45 days after sowing. Irrigation was done simultaneously twice on 25 and 55 days after sowing. Sumithion 50 EC @ 3 m1L ^-1 and Dimethion 40 EC @ 2 mlL ^-1 were sprayed to control leaf roller and hairy caterpillar. The crop was harvested on 20 April 2009 at full maturity. The collected data were analyzed statistically following the ANOVA technique and the mean differences were adjudged as per Duncan's Multiple Range Test.

Source of Information: Agric. Livest. Fish. Vol. 2, No. 1, April 2015: 35-42

Article Link (Online Journal): http://www.banglajol.info/index.php/RALF/article/view/23027

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The results indicated that nitrogen and phosphorus had significant effect on yield performance of soybean including other yield contributing parameters as well as suggested that the combined application of nitrogen and phosphorus @ 25 kg N with 54 kg P ha^-1 might produce the best seed yield in soybean var. Shohag.

Knowledge Management: Journal