Is humus an element compound or mixture?

No. Humus is the Turkish spelling of the Middle Eastern dish whose preferred spelling is hommos, houmos, or hummus. The dish involves the cooking or mashing of chickpeas, for serving with garlic, ground sesame seeds, lemon juice, olive oil, and salt. The preferred use of the Word humus is its reference to dark brown, fresh-smelling, organic matter-rich soil. It isn't an element. But it contains some of the 16-17 nutrients that are necessary for plant and soil health.