In Germany, the second-biggest hop producer in the world, average hop yields have fallen 19.1% in Spalt, 13.7% in Hallertau, and 9.5% in Tettnang, the study found.

研究发现，在世界第二大啤酒花产地德国，斯伯特地区的啤酒花年均产量下降了 19.1%，哈勒陶地区下降了 13.7%，泰特南地区下降了 9.5%。