Effects vermicompost and nitrogen fertilizer on cumin (Cuminum cyminum L.) under rain-fed condition

حضرتی, سعید and حبیب زاده, فرهاد and محمدی, حمید Effects vermicompost and nitrogen fertilizer on cumin (Cuminum cyminum L.) under rain-fed condition. In: 2nd International and 6th National Iranian Congress on Organic vs. Conventional Agriculture, August 2019, Ardabil, Iran.

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Abstract

Cumin (Cuminum cyminum) is one of the important medicinal herb that is cultivated in arid and semi-arid regions of Iran. In order to evaluation of the nitrogen and vermicompost application on growth and yield of cumin, a field study was conducted in factorial experiment based on RCBD design in Azarbaijan Shahid Madani University, Tabriz during September 2018. The factors included three vermicompost levels (0, 5 and 10 ton h-1) and three nitrogen levels (0, 50 and 100 kg h-1) with three replications. The results showed that the simultaneous application of vermicompost and nitrogen had significant effect on growth and yield of cumin. The highest height (26 cm), number of umbels per plant (30), number of seeds per umbels (16), 1000-weed weight (6 g) were obtained with application of 10 ton h-1 vermicompost and 100 kg h -1 nitrogen; but the highest essential oil (1.6%) was obtained in 10 ton h-1 vermicompost with 50 kg h-1 nitrogen. Overall, application of vermicompost and nitrogen by improving the soil quality indices will provide the best conditions for achieving the highest growth and yield of cumin in rain-fed conditions to help in establishing a sustainable agricultural system.

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