Although Zhangqiu green onions are of excellent quality, export sales have been poor for many years, which has seriously restricted the industrial development of Zhangqiu green onions and directly affected the income of local farmers. Zhangqiu City regards the development of specialty brand agriculture as an important measure to increase farmers' income, and uses the brand advantage of Zhangqiu green onions as a breakthrough to develop the green onion industry and promote regional economic development. In July 1999, the trademark "Zhangqiu Green Onion" was successfully registered and became China's first certificate of origin trademark for vegetables. At the same time, we will strengthen the standardized management of green onion production, establish production demonstration areas, promote standardized production technologies in terms of seeds, soil, irrigation, fertilization, etc., and implement unified seed supply, unified fertilization, unified harvesting, and unified sales. These measures have further improved the intrinsic quality of Zhangqiu green onions and enhanced their market competitive advantage.

Relying on the "golden brand" and excellent quality, the sales price of Zhangqiu green onions has doubled year after year, and the economic income of onion farmers has doubled. Zhangqiu green onions have gradually transformed from a "local specialty" to a well-known brand change. The reporter learned in Wanxin Village, Zaoyuan Town that the village's green onion production is increasing at a rate of 15% every year, and the cumulative external sales in six years have exceeded 30 million kilograms. Boxed "selenium-rich" green onions from Wanxin Village, Zaoyuan Town, sell for more than 5 yuan per kilogram in major markets such as Beijing and Shanghai, which is 2 to 3 times the price of ordinary green onions. The villagers also made a fortune from green onions: in 2003, the village's total green onion output reached 5 million kilograms, and its net income reached 4.5 million yuan. Green onion income accounted for 70% of the total income of farmers in the village. Since 2000, the price per kilogram of Zhangqiu green onions has increased from 0.2-0.6 yuan before the use of trademarks to 1.2-5 yuan. The net income per mu of green onions has reached more than 2,000 yuan, and the average annual income of farmers in the main production areas has reached 10,000 yuan. After more than five years of use, management, cultivation and development, the geographical indication of "Zhangqiu Green Onion" has basically achieved the modern agricultural goals of standardized planting, diversified marketing, and standardized management. It has also driven the prosperity of transportation, catering and other related industries.

The success of the "Zhangqiu Green Onion" brand promotion has brought new enlightenment to the development of regional economy. According to the Zhangqiu Industry and Commerce Department, based on the characteristics of the green onion origin, planting conditions and product characteristics, the Industry and Commerce Department guided different producers and operators to register product trademarks such as "Wanxin", "Xiuhui" and "Lulei". Gradually improve the Zhangqiu green onion brand system. Under the demonstration effect of "Zhangqiu Green Onion", a number of influential agricultural and sideline product trademarks emerged in Zhangqiu City, including "Hongnianji", "Chaijiazhihong" meatballs, "Huangzhuang" pickles, and "Weishan" eggs , "Zhangqiu Four Treasures" and other registered trademark products have been put on the shelves of supermarkets and shopping malls in major cities. Up to now, there are more than 90 registered trademarks for agricultural and sideline products in Zhangqiu City, which have played an important role in stimulating the development of the local economy.