长够120天才正宗！选购增城迟菜心请认准专用标识！

Core Viewpoint - The article emphasizes the importance of selecting authentic "Zhi Cai Xin" (late vegetable heart) from Zengcheng, which requires a growth period of at least 120 days to ensure optimal flavor and nutritional value [4][16][29]. Group 1: Product Characteristics - "Zhi Cai Xin" is a nationally protected geographical indication product and is recognized as a premium agricultural product in China [4][6]. - It is known for its unique flavor, low fiber, crisp skin, and soft flesh, making it quick to cook and rich in taste [5][6]. - The traditional variety, which grows for 120 days, has a sweeter and more robust flavor due to longer nutrient accumulation and low-temperature growth conditions [17][22]. Group 2: Market Trends and Consumer Feedback - Recent consumer feedback indicates that some "Zhi Cai Xin" available in the market lacks the expected sweetness, attributed to the introduction of a faster-growing variety with a growth period of only 70-90 days [9][12][14]. - The shorter growth period results in insufficient flavor and nutritional accumulation, leading to a product that does not meet the traditional standards of "Zhi Cai Xin" [14][15]. Group 3: Quality Assurance and Promotion - To protect the brand and promote quality, Zengcheng has introduced a "vegetable ticket" system that allows only those products meeting the 120-day growth requirement to use the special "Zhi Cai Xin" label [28][29]. - Professional technical personnel will oversee the cultivation process to ensure the return to the original flavor profile of "Zhi Cai Xin" [30].