Introducing summer cover crops to the system could increase soil conservation and farm profitability if grazed. Short-term benefits of planting a summer cover crop might include reduced soil erosion in the winter wheat systems in the Southern Great Plains. The main goal of this project was to assess the feasibility of integrating into a winter wheat-summer fallow system in Oklahoma some commonly cultivated warm- season legumes and grasses and their mixtures as summer cover crops with canopies harvested using different cutting (stubble) heights.