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Effect of Mulching and Tillage on Yield and Keeping Quality of Garlic (allium Sativum L.)

M. A. KABIR
Professor
Department of Horticulture , Hajee Mohammad Danesh Science and Technology University (HMDSTU), Dinajpur.

M. A. R AHIM
Professor
Department of Horticulture, Bangladesh Agricultural University (BAU), Mymensingh.

D. A. N. M AJUMDER
Manager
Plant Biotechnology Lab, BRAC Agricultural Research and Development Centre, Gazipur-1701, Bangladesh

T. M. T. IQBAL
Professor
Department of Horticulture , Hajee Mohammad Danesh Science and Technology University (HMDSTU), Dinajpur.

Abstract/ Executive Summary:

An experiment was carried out at the Horticulture Farm, Bangladesh Agricultural University, Mymensingh during rabi season of 2006-2007 to study the effects of different thickness of water hyacinth mulch and tillage on the storage life of garlic. 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 split plot design with three replications. The study revealed that the bulbs from the zero tillage showed the highest storage quality resulting in the lowest weight loss (8.45%), insect infested bulbs (6.67%) as well as rotten bulbs (2.44%) after 150 days of storage. In contrast, bulbs grown under conventional tillage with no mulch and 6 cm thick mulch had the lower storage quality compared to those of other treatment combinations. The result showed that garlic production under zero tillage with 12 cm mulch could be used for better storability.

Keywords: Tillage, Thick mulch, Storage, Garlic

Location: Bangladesh Agricultural University, Mymensingh

Start Date: 00-00-2006

End Date: 00-00-2007

Program Area: Crop-Soil-Water Management

Commodity: Garlic

Objectives:

To assess the effects of tillage and different thicknesses of water hyacinth mulch on the storability of garlic.

Methodology:

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 a split plot design assigning tillage treatments in the main plot and mulches in the sub plot with three replications. In the conventional tillage, a good tilth of soil was made by four ploughings followed by laddering, whereas in the zero tillage conditions, the plot was ma de without any tillage practices. The initial soil moistures of the lands were 30.26 and 71.42%, respectively. Cow dung @ 20 t/ha was applied as the basal dose (Kabir, 2011a; Kabir, 2011b). In case of conventional tillage conditions, cowdung 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 12 cm thick dry water hyacinth mulch was added to the plots as per the treatment s. Ten plants were selected at random from each plot for the collection of data . Leaf area per plant was measured by an electronic area meter (‘ ? T Leaf Area Meter’, USA) in the central laboratory, BAU, Mymensingh. Leaf area was estimated at 20 days interval from 30 to 110 days after planting. Total number of plants and no. of split necked plants were counted at 120 DAP. Moreover, soil moisture percent at the same day after planting was estimated due to the variation of different thicknesses of water hyacinth mulch (Table 1). The crop was harvested on the 28 th March 2007. Yield of bulb per plot was measured and it was converted into yield per hectare in metric ton. The bulbs were cured for 4 days under shade before storing in an ordinary room (Pruthi, 2006). After curing, 30 bulbs from each treatment combination were selected randomly and stored on the floor of the laboratory conditions. Observations were made at 30 days interval upto 150 days to record data on percent weight loss. Besides, percent insect infested bulbs (number) and percent rotten bulbs (number) were also recorded after 150 days of storage. The collected data were statistically analyzed and the mean differences were tested by the Least Significant Difference test (Gomez and Gomez, 1984).

Source of Information: Bangladesh J. Agril. Res. 38(1): 115-125, March 2013, ISSN 0258-7122

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The results showed that garlic production under zero tillage with 12cm mulch could be used for higher storability.

Knowledge Management: Journal