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Combined Effect of Organic Manure and Potassium on Growth and Yield of Onion Cv. BARI Piaz-i

H.K. Barman
Department of Horticulture, Bangladesh Agricultural University, Mymensingh, Bangladesh

M.N. Siddiqui
Department of Biochemistry and Molecular Biology, Bangabandhu Sheikh Mujibur Rahman Agricultural University,Gazipur-1706, Bangladesh

M.A.Siddique
Department of Horticulture, Bangladesh Agricultural University, Mymensingh, Bangladesh

M.S. Roni
Department of Horticulture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur-1706, Bangladesh

M. Nuruzzaman
Department of Horticulture, Bangladesh Agricultural University, Mymensingh, Bangladesh

Abstract/ Executive Summary:

An experiment was conducted to find out the combined effect of cowdung and potassium on the growth and yield of onion cv. BARI piaz-I at Horticulture Farm, Bangladesh Agricultural University, Mymensingh during the period from December 2010 to March 2011. The experiment was laid out in a randomized complete block design with three replications. The two factors experiment had four levels of cowdung, viz., 0, 5, 10 and 20 tons ha^-1 and four levels of potassium, viz. 0, 50, 150 and 250 kg K ha^-1. Doses of cowdung and potassium showed significant variation in respect of all the parameters studied. The combination of 10 tons cowdung and 250 kg K ha^-1 gave the tallest plant (46.60 cm), the highest number of leaves plant^-1 (6.40), the highest length of bulb (3.27 cm), the highest diameter of bulb (4.83 cm), individual weight of bulb (51.23 g), dry matter content (12.66%) and yield of bulb ha^-1 (12.83 tons); whereas the control treatment gave the shortest plant (38.15 cm), lowest number of leaves plant^-1 (5.68), diameter of bulb (3.41), individual weight of bulb (35.65g) and gave lowest bulb yield ha^-1 (9.16 tons).

Keywords: Cowdung, Potassium, Onion, Bulb Yield

Location: Horticulture Farm, Bangladesh Agricultural University, Mymensingh

Start Date: 00-12-2010

End Date: 00-03-2011

Program Area: Crop-Soil-Water Management

Commodity: Onion

Objectives:

1. The main objective of this present experiment was to study the effect of different levels of organic manures and potassium on the growth and bulb yield of onion cv BARI piaz-1 plants.

Methodology:

The experiment work was conducted at the Horticulture Farm of Bangladesh Agricultural University, Mymensingh, during the period from December, 2010 to March, 2011 in an attempt to evaluate the effect of different levels of cowdung and potassium on growth and yield of onion cv. BARI piaz-I. The soil of experiment area was medium high in topography and sandy loam in texture belonging to the Old Brahmaputra Flood Plain Alluvial Tract under the AEZ number 9 (UNDP, 1988). The research work was carried out with onion variety BARI piaz-1. The seeds were collected from the Spices Research Centre of Bangladesh Agricultural Research Institute (BARI), Gazipur. The experiment was consisted of 16 treatment combinations and was laid out in the Randomized Complete Block Design with three replications. An area of 153 square meter of uniform fertility with good irrigation and drainage channels was divided into three equal blocks, representing the replications. A 75 cm space between the blocks and 50 cm between the plots was provided. The size of a unit plot was 1.2 m X 1.0 m. The experiment had two factors and was designed to study the effect of different cowdung and potassium levels on growth and yield of onion cv. BARI piaz-I). The experiment consisted of the following treatments: Factor A: four levels of cowdung C₀ : 0 ton cowdung ha^-1 (control) C₁ : 5 ton cowdung ha^-1 C₂ : 10 ton cowdung ha^-1 C₃ : 20 ton cowdung ha^-1 Factor B: four levels of potassium (K) K₀ : 0 kg K ha^-1 (control) K₁ : 50 kg K ha^-1 K₂ : 150 kg K ha^-1 K₃ : 250 kg K ha^-1 In this study, manures and fertilizers were applied according to the experimental treatments. The seedlings were always kept under careful observation. Necessary intercultural operations were done throughout the cropping season for better growth and development of the plants. The crop was harvested when 75% of the tops had fallen over (Shalalby et al., 1991). The data on plant height, number of leaves plant^-1, length of bulb, diameter of bulb, individual weight of bulb, and dry matter percentage of bulb and yield of bulb hectare^-1 were recorded. The percentage of bulb dry matter was calculated by the following formula: % Dry matter of bulb = (Fresh weight of bulb/Constant weight of bulb) x 100. The collected data were statistically analyzed using MSTAT software. Difference (LSD) taking the probability level 5% and 1% as the minimum unit of significance and where higher levels of significance were found, they were indicated in results.

Source of Information: Int. J. Agril. Res. Innov. & Tech. 3 (1): 47-51, June, 2013; ISSN: 2224-0616

Article Link (Online Journal): Available online at http://www.ijarit.webs.com

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The present findings revealed that application of 10 ton cowdung ha-1 and 250 kg K ha^-1 might be recommended for proper growth and yield of onion cv. BARI piaz-I to get more yield under the Bangladesh Agricultural University, Horticulture Farm conditions.

Knowledge Management: Journal