五华县位于广东省的东北部(北纬23°56′),年平均温度约21℃,无霜期320.7天,日平均气温15℃以上的日数为294.6天。按照过去的看法,五华县是不能一年种三造水稻的。但五华县示范农场广大职工遵照毛主席“备战、备荒、为人民”的教导,为了使这个人多地少的山区多产粮食,更好地支援国家建设,近年 Wuhua County is located in the northeastern part of Guangdong Province (latitude 23 ° 56 ’) with an annual average temperature of about 21 ℃, frost-free period of 320.7 days and daily mean temperature of 15 ° C above 294.6 days. According to the past view, Wuhua County can not grow rice three years. However, the vast number of staff and workers of the demonstration farm in Wuhua County abided by the teachings of Chairman Mao for “preparing for war, preparing for famine and for the people.” In order to enable this mountainous area with more people to produce more grain and better support the nation’s construction, in recent years