Effects of integrated management of organic and bio-fertilizers application on quantity and quality essential oil of coriander (Coriandrum sativum L.)

This study was performed to evaluate the effects of organic and bio-fertilizers application on quantity and quality essential oil of coriander.

The experiment was conducted as randomized complete blocks design with twelve treatments and three replications in Tehran of Iran in 2019. The treatments were 1- vermicompost (10 t/ha), 2- nitroxin, 3- bio-superphosphate, 4- biosulfur, 5- vermicompost + nitroxin, 6- vermicompost + bio-superphosphate, 7- vermicompost + biosulfur, 8- nitroxin + bio-superphosphate, 9- nitroxin + biosulfur, 10- bio-superphosphate + biosulfur, 11- chemical fertilizer and 12- control (without fertilizer).

The results showed that treatments had significant effects on studied traits, as the highest herb dry yield (3833.3 kg.ha-1) in integrated treatment of 10 t/ha vermicompost and nitroxin, the highest seed yield (1297.5 kg.ha-1) and linalool content in essential oil (89.53%) in integrated treatment of nitroxin and bio-superphosphate and the highest essential oil content (0.32%) and essential oil yield (2.89 kg.ha-1) in treatment of nitroxin were obtained. Also, the highest gamma terpinene content in essential oil (5.29%) in treatment of bio-superphosphate and the highest geranyl acetate content (8.69%) and dodecenal content (4.94%) in essential oil in treatment of chemical fertilizer were obtained.

In general, results of this study showed, bio and organic fertilizers application had a considerable role in increasing of yield and quantity and quality essential oil of coriander.