Hristova, D. and D. Nenkova, 2012. Study on the influence of some biologically active substances over ethereal oil cultures - coriander. Bulg. J. Agric. Sci., 18: 100-102
The examination has been carried out on the land of Gorni Lozen, region of Sofia, during the period of 2003 - 2005.Experiments have been held to determine the influence of some biologically active substances upon the yield of seeds, ethereal and regular oil of ethereal bearing cultures - coriander. It was found that the tested chemicals ХП-55 (20 ml/da) and ПБ - 31 (30 ml/da) have positive influence over the tested indexes. The chemical ПБ -31 (30 ml/da) increases the contents of ethereal oil with 8.66%, of regular oil - with 6.30% and the yield - with 11.6%, average for the period, compared to the control samples.