Growth and oil production of foeniculum vulgare mill [electronic resource]: 2- the effect of number of irrigations and organic fertilizers.

Includes reference.

Seeds of aromatic plants foeniculum vulgare, mill. were sown in sandy soil with 0 or 2.5 kg/m 2 of 3 sources of air dried organic fertilizers (of); chicken manure (chm), cattle manure (cam) or plant compost (pc). plants were subjected to 3, 4, 5 or 6 times of irrigation after 21 days of emergence till harvesting. number of irrigations and organic fertilizers had significant effects on harvesting date, plant height, branch number and fruit weight and volatile oil yield. number of days till harvesting was significantly increased when number of irrigations increased or/and adding organic fertilizers. plants irrigated 3 times had 41.4 g fruits/plant whereas 6-times irrigated plants yielded 67.7 g/plant. however, there was insignificant difference in volatile oil yield between 5- and 6-times irrigated plants (1.75 and 1.76 ml/plant volatile oil respectively). percentage of n, p and k of plants were significantly reduced with the reduction in number of irrigations. the minimum n and p %;were 2.36 and 0.303 respectively, being in 3-times-irrigated plants. whereas k% increased by decreasing number of irrigations, plants irrigated 3 times had the highest % of k; 1.65%. organic fertilizers significantly increased fruit yield over the control plants especially when number of irrigations decreased. plants, which did not fertilize with organic fertilizers, had significantly the lowest plant height, branch number and fruit and oil yield. chm-fertilized plants had the highest volatile oil yield 1.92

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