Research on the the route of regional public brand construction of agricultural products 并列题名:Research on the the route of regional public brand construction of agricultural products Theory and practice of regional public brand construction of agricultural products 并列题名:Theory and practice of regional public brand construction of agricultural products Research on the construction of regional public brands for agricultural products Research on soil pollution prevention and control of agricultural products Research on optimization of distribution for regional cold chain logistics of agricultural products Research on the economic effects of import barriers reduction in China's agricultural products