Vol. 11 No. 2
(Efficacy of sulphur on growth, yield and quality of onion (Allium cepa L.)
Abstract: A field experiment was conducted on onion (Allium cepa L.) cv. Sukhsagar during the Rabi seasons of 2010-11 and 2011- 12 at ‘C’ Block Farm, Bidhan Chandra Krishi Viswavidyalaya, Kalyani, West Bengal to assess the influence of sulphur on growth, yield and quality in onion. The treatments comprised of four levels of sulphur (0, 15, 30 and 45 kg ha-1) as basal application from two sulphur sources viz. gypsum and as elemental sulphur. The experiment was laid out in factorial randomized block design with three replications. Harvested onion was kept for four months in low cost storage structure and observations were recorded for physiological loss in weight and losses due to rotting and sprouting. Pooled results of two year revealed significantly highest total yield (298.81q ha-1) and marketable yield (272.13 q ha-1) with application of elemental sulphur @ 30 kg ha-1. The highest amount of pyruvic acid content in bulb (4.5μmol g-1) and minimal storage loss were also found from the same treatment. The study suggested that soil application of elemental sulphur @ 30 kg ha-1 is to be made for better yield, quality and shelf life of onion cultivar Sukhsagar under new alluvial zone of West Bengal.
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