... Beijing, Tianjin, Hebei, Liaoning, Jilin, Heilongjiang, Shanghai, Jiangsu, Zhejiang, Anhui, Fujian, Jiangxi, Shandong, Henan, Hubei, Hunan, Guangdong, Guangxi, Hainan, Chongqing, Sichuan ... , Guizhou, Yunnan, Shaanxi, Gansu, Ningxia, Xinjiang, resulted with an average yield of 10.73% and highest yield of 29 ...