Response of zinc and sulphur on growth and yield of onion (Allium cepa L.)

The present investigation was conducted during winter season of 2011–2012 at research farm Department of Horticulture Sam Higginbottom Institute of Agriculture Technology and Sciences, Allahabad (U.P.) the experiment was conducted in randomized block design with ten treatments and three replications. The response on onion (Allium cepa) on growth and yield to different levels of Zinc (Chelated) and Sulphur (Bentenite), Where Zinc levels under trail were 0, 10, 20 and 30 kg per hectare, while Sulphur levels were 0, 15, 30 and 45 kg per hectare. The statistical analysis using F test revealed that both zinc and Sulphur significantly affected all the growth parameters studied. Maximum leaf length (66.39 cm) was recorded in (1.5 m²) plots fertilized with 45 kg Sulphur and 30 kg zinc per hectare, whereas maximum plant heights (79.33 cm), bulb weight (297.87 g), yield (70.36 t ha⁻¹) and benefit: cost ratio (2.73).