There is a lack of information regarding the impact of soybean yield when cover crops are established into standing soybeans in Western North Dakota. Weed control is becoming an issue and a more integrated approach to control weeds is necessary to improve herbicide efficiency, while increasing profitability. Also, soil erosion is a great issue in Western North Dakota due to little residue in the soil after soybean harvest. Winter hardy cover crops will be investigated as an option to increase soil cover after soybean harvest. The studies (two separate trials) will be conducted in four locations in western North Dakota (Minot, Williston, Dickinson, and Hettinger). We will consider two rows spacing, being narrow (7½-10”) and wide (22-30”). We will consider each row spacing as separate trials. The reason for investigating two rows spacing is that is a considerable number of farmers who use air-seeders and planters to plant soybeans. We will interssed cover crops into standing soybeans in two stages (R2 and R5).However, based on the study carried out in 2023, the moisture will also be considered to broadcast the cover crops.The reason for adding the moisture component to broadcast the seeds is to increase the chance of germination and establishment. Sometimes the soybeans were in the right stage, but little moisture to provide germination and establishment. Interseed cover crops at R2 stage is to provide more time for the cover crops to get established. The reason for interseed cover crops at R5 stage is because is close to the senescence and we can reduce the cover crop competition with soybeans. We will investigate five cover crops treatments: no cover crops; winter rye; winter rye + winter canola; winter rye + winter camelina; winter rye + oats + radish. Cover crops seeding rates will be at the recommended rates for cover crops establishment, and the seeds will be broadcast applied at the two soybean stages. All trials will be conducted using best management practices for Western North Dakota soybean production, and all trials will be under no-till. The experimental design will be a randomized complete block with four replications. Evaluations will be carried out before, during, and after trial establishment. For soybeans, we will evaluate plant population at harvest; yield; test weight; oil, and protein. For cover crops, we will evaluate soil cover (using the software Canopeo) and biomass 30 days after harvest, and in the spring (before burndown for the next crop); cover crop stand. For weed, we will evaluate weed presence/suppression in the fall and the spring, and the percentage of suppression will be calculated. In all trials we will calculate the return on the investment (ROI): we are going to calculate the ROI based on the equation: ROI = gross income (yield × commodity price) -treatment cost.