Effect of foliar application of fertilizer grades on growth and yield of onion (Allium cepa L.) cv. N-2-4-1

A field experiment was carried out to assess the Effect of foliar application of fertilizer grades on growth and yield of onion (Allium cepa L.) cv. N-2-4-1 at Vegetable Improvement Project, Department of Horticulture, Mahatma Phule Krishi Vidyapeeth, Rahuri during rabi season of 2011-12. The experiment was laid out in FRBD with 3 replication along with 12 treatment combinations comprising of 4 graded fertilizers viz., 20:20:20, 00:52:34, 13:00:45 and 12:61:00 with 3 concentration viz., 5 g/lit, 7.5 g/lit and 10 g/lit along with control. The result of the present investigation revealed that growth parameter were most effectively influenced by the treatment 20:20:20 in 5 g/lit with 3 sprays viz., mean plant height and average number of leaves at harvest over the control. Foliar application significantly maximized bulb parameters like average bulb weight, Polar diameter and equatorial diameter of bulb over the soil application of recommended dose of fertilizer.