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Effect of Different Sources of Nitrogen on Growth and Yield of Two Lines of Garlic Under Dry Land Condition at BAU, Mymensingh

M.S. Alam
Department of Horticulture, Bangladesh Agricultural University, Mymensingh

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

P.W. Simon
Department of Horticulture, University of Wisconsin, Madison, USA

Abstract/ Executive Summary:

The experiment was carried out to find the effect of different sources of nitrogen on growth and yield of two lines of garlic under dry land condition at BAU, Mymensingh during 2005 to 2006. The 2-factor experiment had 4 sources of nitrogen: i) Urea - 200 kg/ ha (30 g/plot) = 92 kg N/ha, ii) Urea -100 kg/ha (15 g/plot) + DAP-200 kg/ha (30 g/plot) = 92 kg N/ha, iii) Diammonium phosphate - 400 kg/ha (60 g/plot) = 92 kg N/ha, iv) Cowdung -7666 kg/ha (1.15 kg/plot) = 92 kg N/ha and 2 garlic lines: G2 and G19. The two-factor experiment was conducted in randomized complete block design (RCBD) with 3 replications. Yield and yield contributing characters were found to be maximum in garlic lines G19. The highest yield (14.14t/ha) was obtained from garlic line G19 followed by garlic line G2 (11.16 t/h). Different sources of nitrogen had significance influence on all the mentioned parameters. Higher yield was also recorded from 7666 kg/ha cowdung (13.50t/ha) than that of 100 kg/ha urea + 200 kg/ha diammonium phosphate (12.85t/ha), 400 kg/ha diammonium phosphate (12.42) and 200 kg/ha urea (11.82 t/ha) ones. The combined effect of garlic lines and different sources of nitrogen revealed significant variation in bulb yield and various yield components. The treatment combination of garlic line G19 and use of 7666 kg/ha cowdung produced the highest yield (15.09 t/ha) and the treatment combination of garlic line G2 and 200 kg/ha urea gave the lowest yield (10.40 t/ha).

Keywords: Sources of nitrogen, Growth, Yield, Garlic

Location: Allium Field Laboratory, Horticulture Farm, Department of Horticulture, Bangladesh Agricultural University

Start Date: 00-10-2005

End Date: 00-04-2006

Program Area: Crop-Soil-Water Management

Commodity: Garlic

Objectives:

1. To study the effect of different sources of nitrogen on growth and yield of two lines of garlic under dry land condition at BAU, Mymensingh was undertaken to find out the best source of N for garlic.

Methodology:

The experiment was carried out to fine the effect of different sources of nitrogen on growth and yield of two lines of garlic under dry land condition at BAU, Mymensingh from October, 2005 to April 2006 at the Allium Field Laboratory, Horticulture Farm, Department of Horticulture, Bangladesh Agricultural University, Mymensingh. The 2-factor experiment had 4 sources of nitrogen : i) Urea - 200 kg/ ha (30 g/plot) = 92 kg N/ha, ii) Urea -100 kg/ha (15 g/plot) + DAP-200 kg/ha (30 g/plot) = 92 kg N/ha, iii) Diammonium phosphate - 400 kg/ha (60 g/plot) = 92 kg N/ha, and iv) Cowdung -7666 kg/ha (1.15 kg/plot) = 92 kg N/ha (BARC, 2005) and 2 Garlic lines: i) G2 and ii) G19.Unit plot size: 1.5m x 1m, plant spacing: 20 cm x 10 cm ,total number of treatments: 4x2=8, total number of unit plot: 8x3= 24, total number of plants per plot = 75, date of planting: 9 Nov, 2005,date of harvesting: 2 April, 2006. The two-factor experiment was conducted in randomized complete block design (RCBD) with 3 replications.Intercultural operation were done as and when necessary.Data were recorded on yield and yield contributing characters on height of plant, no. of leaves per plant, fresh weight of bulb diameter of bulb, length of bulb, no. of cloves per bulb, yield of bulb per plot and yield of bulb per hectare. The difference between the treatment means was judged by Least Significance Test (LSD).

Source of Information: J. Agrofor. Environ. 4 (2): 129-132, 2010; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The sources of nitrogen had significant influence on all the parameters studied .The tallest plant (70.20cm),number of leaves per plant (8.10) ,bulb diameter (4.00cm) and length (4.10 cm) ,fresh weight of bulb (29.25g), no of cloves per bulb (28.10) , yield per plot (2.02kg) and yield per hectare (13.50t/ha) were found in 7666 kg/ha cowdung ,while the lowest values of all the above mentioned parameters were obtained from 200 kg/ha urea. When cowdung is applied in soil, it improves the physical conditions of the soil, making micro nutrient available which help the plant for easy establishment in the field and easy uptake of nutrient slowly at tender stage of the plant.

Knowledge Management: Journal