Effect of date of sowing, nitrogen levels and spacing on growth and yield of ajwain (Trachyspermum ammi (L.) Sprague)
2008
G C Yadav, Prem Nath, R C Jaiswal, R B Verma,
The effect of three dates of sowing (15th October, 30th October and 14th November), four levelsof nitrogen (0, 20, 40 and 60 kg ha-1) and three spacings (30 cm x 10 cm, 30 cm x 20 cm and 30cm x 30 cm) on growth and yield of ajwain (Trachyspermum ammi) was studied at Kumarganj(Uttar Pradesh). Sowing on 30th October significantly increased plant height, number ofprimary and secondary branches plant-1, plant spread, number of umbels plant-1, number ofumbellets umbel-1, number of seeds plant-1 and yield of seeds plant-1 and ha-1. Maximumvalues of all the parameters were obtained with application of 60 kg N ha-1. Wider spacing(30 cm x 20 cm and 30 cm x 30 cm) was found to be effective for all the characters except seedyield, which was higher at the closest spacing (30 cm x 10 cm). The interaction of dates ofsowing and nitrogen levels significantly increased primary and secondary branches plant-1as well as seed yield ha-1.
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