@article{paperid:1042012, author = {Ahoei, Shahab Aldin and Nemati, Seyyed Hossein and Rouhani, Hamid and Arouiee, Hossein}, title = {The effects of Thrichoderma harzianom extract on the chlorophyll rate and nitrate concentration in two varieties of Lettuce in soilless culture system}, journal = {Journal of Middle East Applied Science and Technology}, year = {2014}, volume = {22}, number = {2}, month = {January}, issn = {2305-0225}, pages = {91--95}, numpages = {4}, keywords = {Trichoderma harzianum; Soilless culture; Nitrate accumulation; Chlorophyll; Lettuce}, }