The University of Idaho is seeking historical Kentucky bluegrass yield data from growers to determine the effect of year, environment, location, residue management practice (burn vs. non-burn), and variety on seed yield. Average yield data by harvest year for forty-one burned fields and six non-burned fields is currently available (Table 1). However, we have insufficient data at this time to make inferences on the factors impacting crop yield. Therefore, if you have yield data on individual fields by year, we would appreciate your information (see Table 2).