Plant litter is an important factor for soil conservation and sustainability that could modify soil chemical properties and increase the plant biomass production. The aim of this research was to compare plant litter chemical composition and its effects on soil properties in three species including Hordeum bulbosum, Poa bulbosa, Bromus tectorum. First, soil samples were taken in the depth of 0-3...

background & aim: the essential oils are the most important secondary aromatic biochemical compounds in plants and even in some animals. they are of great importance because of their aromatic, flavoring and preventing properties from deterioration in food industries. according to ethnobotany study of aerial parts of bakhtiari celery or kelus (kelussia odoratissma  mozaffarian) in dairy such...