Vol. 12, Issue 10 (2023)

Author(s):
M Tattimani, SA Gaddanakeri, IB Biradar, BS Yenagi, CK Venugopal and CM Navalagatti

Abstract:
An experiment was conducted during the late late kharif season of 2021-22 and 2022-23 at Main Horticultural Research and Extension Centre, University of Horticultural Sciences, Bagalkot, in order to study the effect of irrigation and fertilizer levels on the essential oil content and yield of ajwain. The experiment having split plot design, consists of three irrigation levels viz., Rainfed, 0.6 IW: CPE ratio and 0.8 IW: CPE ratio and three fertilizer levels viz., 75% RDF (75: 37.5: 37.5 NP₂O₅K₂O kg ha^-1), 100% RDF (100: 50: 50 NP₂O₅K₂O kg ha^-1) and 100% Organic (N equivalent FYM). The results indicated that,rainfed condition and organic fertilizer level can increase in the essential oil content and yield of ajwain. The highest essential oil content (3.22 and 3.23%) was obtained from the rainfed and organic level respectively. Whereas the highest essential oil yield (36.10 and 34.97 kg ha^-1) was recorded in irrigation at 0.8 IW: CPE ratio and 100% RDF treated ajwain and was on par with 75% RDF at same level of irrigation.