Seasonal Yield and Chemical Composition of Crested Wheatgrass in Southeastern Wyoming

Abstract

Herbage yields, crude protein levels, and mineral concentrations of crested wheatgrass were influenced by phenological development and distribution of spring precipitation at the Archer Substation near Cheyenne, Wyo. Crude protein levels and mineral concentrations in the crested wheatgrass declined with plant maturity. Amount and distribution of the precipitation enhanced or retarded phenological development. Calcium uptake per acre by the crested wheatgrass was greater during a wet spring, but calcium concentration per unit of dry matter was higher during a dry spring.