@article{paperid:1025237, author = {Khazaei, Hamid Reza and Eyshi Rezaei, Ehsan and Bannayan Aval, Mohammad}, title = {Application times and concentration of humic acid impact on aboveground biomass and oil production of hyssop (Hyssopus officinalis)}, journal = {Journal of Medicinal Plants Research}, year = {2011}, volume = {5}, number = {20}, month = {September}, issn = {1996-0875}, pages = {5148--5154}, numpages = {6}, keywords = {Biomass; essential oil; foliar application; humic acid; Hyssopus officinalis}, }