Research on conflict and integration of marketing channel of agriculutural products 并列题名：Research on conflict and integration of marketing channel of agriculutural products Research on performance evaluation and pattern selection of marketing channel of agricultural products 并列题名：Research on performance evaluation and pattern selection of marketing channel of agricultural products Research on soil pollution prevention and control of agricultural products Selection and optimization of distribution channels for agricultural products Research on optimization of distribution for regional cold chain logistics of agricultural products 并列题名：Selection and optimization of distribution channels for agricultural products Research on the construction of regional public brands for agricultural products Brand building and marketing of agricultural products