Guo , A., and Y. Yao. “Analysis of Population Productivity Differences Among Tibetan Hulless Barley Varieties Under Fertilizer-Density Interactions”. Journal of Research in Multidisciplinary Methods and Applications, vol. 4, no. 7, July 2025, p. 01250407001, http://www.satursonpublishing.com/jrmma/article/view/a01250407001.