م مقاله کنفرانسی سال ۱۳۹۸ ۵۳۰ مشاهده The effect of simultaneous cropping of sainfoin (Onobrychis viciifolia)with thyme (Thymus vulgaris), and fennel (Foeniculum vulgare) on the amount of essential oil in the forage fenneltanninessential oil