Zhangxi Xiangyu is located in the administrative districts of four towns such as Lecheng Town, Langtian Town, Changlai Town and Beixiang Town of Lechang City, Shaoguan City, Guangdong Province. The toon is a large tender meat with a betel nut pattern. It is soft and cottony when cooked. It is full of aroma and mouth-watering, and is very popular among people.

Zhang Xixiang's quality technical requirements (1) varieties. Local betel nut species. (2) Site conditions. 80 to 220 meters above sea level, should choose sunny, near water source, convenient irrigation and drainage, soil texture is sandy loam, pH 6.0 to 7.5, tillage layer thickness ≥ 25cm, organic matter content ≥ 3%, no pollution. (3) Cultivation techniques. 1. Kind of choice. Use the last year's son-in-law to raise seedlings directly in the depression. Choose a species with full buds, no pests, no mold, and a ball diameter ≥ 4cm. 2. Planting. Planting time is from late March to early April. The planting density is 7500 to 9000 plants per hectare, the row spacing is 180cm, and the plant spacing is 62 cm to 74 cm. 3. Fertilize. Organic fertilizer is the mainstay, supplemented by fertilizer. The applied organic fertilizer per hectare is ≥75 tons. 4. Soil cultivation. Not less than 4 times. The cumulative soil height is ≥50cm. 5. Water management: watering from June to September. 6. Leaf cutting: 6 to 8 functional leaves are reserved from June to September, and 4 to 6 functional leaves are retained from October to November. Each plant has 3 to 4 healthy scorpions, and the others are removed. 7. Environmental and safety requirements: The use of pesticides, fertilizers, etc. must comply with relevant national regulations and must not pollute the environment. (4) Harvesting and storage. 1. Harvest: From late November to the end of January. 2. Storage: Store in a ventilated, dry, hygienic room. Storage period under natural conditions ≤ 40 days. (5) Quality characteristics. 1. Sensory characteristics: bulb weight ≥ 2.5kg, length ≥ 30cm; 芋 shaped, spindle-shaped or cylindrical, yellow-brown skin, thin and smooth skin, tight meat structure, quality powder, crisp and slag-free, musk rich. 2. Physical and chemical indicators: amylose ≥ 4.0%, amylopectin ≥ 15.0%, protein ≥ 2.0%. 3. Safety requirements: Product safety indicators must meet the relevant regulations of the state for similar products.

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The producers within the scope of protection of the geographical indication products of Zhangxi Xiangxi may submit an application for the use of the “Special Mark for Geographical Indication Products” to the Quality and Technical Supervision Bureau of Lechang City, Guangdong Province, which shall be approved by the General Administration of Quality Supervision, Inspection and Quarantine.