Description

Onion bulb is strongly contracted subterranean shoot with thickened, fleshy leaves as food organs and bulb is composed of carbohydrates (11.0 g), proteins (1.2 g), fiber (0.6 g), moisture (86.8 g) and energy (38 cal). Biseds, vitamins like vitamin 'A' (0.012 mg), vitamin 'C' (11 mg), thiamine (0.08 mg), riboflavin (0.01 mg) and niacin (0.2 mg), and minerals.The experiment results were revealed that the application of 25 per cent recommended dose of NPKS + NSKE 6 q ha-1 + VC 30 q ha-1 (T8) recorded significantly maximum growth parameters in terms of plant height at 90 and 120 DAP (18.98 and 41.84 cm) respectively, number of leaves per plant (8.00) and neck thickness (0.72) 120 DAP followed treatment T1 by 100 percent recommended dose of NPKS 120:60:60:40 Kg ha-1. The yield components of onion viz., bulb diameter (4.88), weight of bulb (52.39 g), yield per plot of bulb (16.00 kg) and yield per hectare (26.67 t) followed by treatment T1 with the application of 100 percent recommended dose of NPKS 120:60:60:40 Kg ha-1. The bulb yield of onion was increased 91.56 per cent over recommended dose of 100 % NPKS (120:60:60:40 kg/ha) through inorganic fertilizers.