元代至正二十年（１３６０年） ,陈友谅在江州（治今九江市）称帝 ,国号大义 ,率兵６０万与朱元璋决战以争天下。为了解决军需问题 ,对南昌、瑞州、袁州（治今宜春市）３府所属除武宁以外各县强行加赋 ,即所谓浮粮（包括浮银和浮米）。年加赋额共计 :地亩银３３．１２万两 ,漕 Yuan Dynasty is just two decades (1360), Chen Youliang in Jiangzhou (governance this Jiujiang City) proclaimed himself emperor, national righteous cause, 600,000 troops and Zhu Yuanzhang battle to fight the world. In order to solve the problem of munitions, the three prefectures belonging to Nanchang, Ruizhou and Yizhou (now Yichun City) were forced to increase their subsidies except for Wuning, which is called floating grain (including floating silver and floating rice). Plus a total amount of plus: 338,100 acres of silver two, Cao