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Effects of Tillage and Different Thicknesses of Water Hyacinth Mulch on the Growth and Yield of Garlic

M. A. Kabir
Department of Horticulture, Hajee Mohammad Danesh Science and Technology University, Dinajpur

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

H. F. El. Taj
Department of Entomology, Hajee Mohammad Danesh Science and Technology University, Dinajpur

D. A. N. Majumder
Plant Biotechnology Lab, BRAC Agricultural Research and Development Centre

Shreef Mahmood
Department of Horticulture, Hajee Mohammad Danesh Science and Technology University, Dinajpur

Abstract/ Executive Summary:

Different growth parameters of garlic as well as bulb yield were found significant in respect of the treatments. Nonetheless, the combination of 10 cm thick mulch with zero tillage produced the highest yield (9.92 t/ha). On the contrary, the lowest yield (4.23 t/ha) was obtained from no mulch with zero tillage. Economic analysis among the treatment combinations showed that the total cost of production was the highest in 12 cm thick mulch with conventional tillage, however, the highest BCR (2.89) was recorded from the zero tillage with 10cm mulch.

Keywords: Tillage, Mulch thickness, Garlic, Yield

Location: Bangladesh Agricultural University, Mymensingh

Start Date: 15-11-2006

End Date: 28-03-2007

Program Area: Crop-Soil-Water Management

Commodity: Garlic

Objectives:

1. The effects of tillage and different thicknesses of mulches on the growth and yield of garlic were studied.

Methodology:

An experiment was conducted at the field laboratory, USDA-Alliums’ project, Bangladesh Agricultural University, Mymensingh during rabi seasons of 2006- 2007. The experiment was conducted at the Horticulture Farm, Bangladesh Agricultural University, Mymensingh under the Agro-ecological zone of Old Brahmaputra floodplain. The experiment was consisted of five depths of water hyacinth mulch (0, 6, 8, 10 and 12 cm) and two methods of tillage (conventional and zero). It was laid out in the Randomized Complete Block Design (RCBD) with three replications. In the conventional tillage, a good tilth of soil was made by four ploughings followed by laddering. On the other hand, in the zero tillage conditions the plot was arranged without any tillage practices. The initial soil moistures of the lands were 30.26 and 71.42%, respectively. Moreover, soil moisture content after fifteen days of planting was estimated due to the variation of different thicknesses of water hyacinth mulch. Cow dung @ 20 t/ha was applied as the basal dose. In case of conventional tillage conditions, cow dung was applied in the plot and mixed well with the soil by spading. But under zero tillage conditions, it was applied on the soil. The cloves of garlic were planted on 15 November, 2006. Immediately after planting 6, 8, 10 and 12cm thick dry water hyacinth mulch was added to the plots as per the treatments. The crop was always kept under careful observation and it was harvested on the 28th March, 2007. The bulbs were cured for 4 days under shade before storing in an ordinary room.Ten plants were selected at random from each plot for the collection of data. The following data were recorded: Emergence of plant (%), plant height (cm), no. of leaves per plant, length of the longest leaf per plant (cm), breadth of the longest leaf per plant (cm), fresh weight of leaves per plant (g), dry weight of leaves per plant (g), fresh weight of roots per plant (g), dry weight of roots per plant (g), fresh weight of bulbs per plant (g), dry weight of bulbs per plant (g), diameter of bulbs (cm), no. of cloves per bulb, yield of bulb per plot (kg) and yield of bulb per hectare (t). The collected data were statistically analyzed and the mean differences were tested by the Least Significant Difference test.

Source of Information: J. Environ. Sci. & Natural Resources, 4(2): 19-26, 2011; ISSN 1999-7361

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The combination of 10 cm thick mulch with zero tillage produced the highest yield (9.92 t/ha). On the contrary, the lowest yield (4.23 t/ha) was obtained from no mulch with zero tillage.

Knowledge Management: Journal