Hannan sweet corn, which can be eaten raw or cooked, is mainly characterized by large ears, full and uniform grain, bright color, thin skin, juicy juice, crisp and sweet, and sugar content up to 20%. About 1 times that of conventional corn.

Hannan sweet corn quality technical requirements (1) varieties. Huatianyu No.3, Huatianyu No.4 and Eshenyu No.5. (2) Site conditions. The soil type is gray tidal soil, the soil texture is sandy soil, the soil pH is 6.5 to 7.8, and the soil organic matter content is ≥1.8%. (3) Cultivation management. 1. (2) Planting density: ≤52,500 plants per hectare. 2. 3. 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. The leaves must be taken when harvesting. 2. Do not stack. (5) Quality characteristics. 1. Bright. 2. Safety and other quality technical requirements: Product safety and other quality technical requirements must comply with relevant national regulations.

Apply to：
Producers within the Hannan sweet corn producing area may apply to the Quality and Technical Supervision Bureau of Hannan District, Wuhan City, Hubei Province for the use of the “Special Mark for Geographical Indication Products”, which is reviewed by the Hubei Provincial Bureau of Quality and Technical Supervision and reported to the General Administration of Quality Supervision, Inspection and Quarantine. Announced after approval. The statutory testing agency for Hannan sweet corn is designated by the Hubei Provincial Bureau of Quality and Technical Supervision.