Effect of irrigation and nitrogen on growth, yield and yield attributes of rabi onion (Allium cepa L.) in Andhra Pradesh

1999

A:PS

A field trial was conducted at College of Agriculture, Rajendranagar, Hyderabad, Andhra Pradesh, India during rabi seasons of 1993-94 and 1994-95 in sandy loamy soil with four levels of irrigations given at IW:CPE ratios of 0.6, 0.8, 1.0 and 1.2 and five levels of nitrogen at 0, 50, 100, 150 and 200 kg/ha in a split plot design with three replication using the onion cv., N-53. Among the various treatments, higher level of irrigation (1.2 IW:CPE) and nitrogen (200 kg ha-1) alone and their interaction resulted in maximum plant height, more number of leaves per plant, maximum bulb length, bulb diameter, bulb weight and bulb yield, but it was observed at par with irrigation at 1.2 IW:CPE ratio + 150 kg N/ha with respect of bulb length, bulb diameter and bulb yield. Depending upon the fertility status of the soil, irrigation at 1.2 IW:CPE ratio and nitrogen from 150-200 kg/ha are recommended for obtaining highest bulb yield for onion cv. N-53 in rabi season for sandy loam soils of Southern Telangana Zone of Andhra Pradesh.

v.26(1):64-68, VEGETABLE SCIENCE

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