Sanzheng Huaishan is produced in the area of ​​Sanzhen Town, Jiaoling County, the hometown of longevity in the world. It has the characteristics of crispy, refreshing and long-lasting, and has high nutritional value.

Sanzhen Huaishan quality technical requirements First, the variety of fine Huaishan. 2. Site conditions The soil layer is deep and loose, with good air permeability, easy to discharge and easy to irrigate, low groundwater level, and sandy soil with good light conditions. It is most suitable for alluvial sandy loam cultivation. 3. Cultivation and management 1. Tricks: 1 每 for each 1.7m (40 cm for the ploughing ditch), two planting ditch for each shovel, the ditch depth is 0.6 to 0.8 m, the width is 40 to 45 cm, the width is 40 cm, and the gully distance is 0.75m to 0.85m. 2. Apply enough base fertilizer: After all the trenches are dug and filled with mature soil, apply the base fertilizer to the ditch, apply 1500kg of organic fertilizer per 667m2 (mu), 25kg of superphosphate, sulfur-containing compound fertilizer 25kg, then back to the soil into a sputum, the height is 20 to 30cm. 3. Seed selection and seedling: use the roots of potato (commonly known as potato) for seedlings. Generally, from September to October, larger roots (20 to 25 mm, smooth potato skin, no pests and diseases) are harvested, and the potato is buried in the sand for winter, and in the spring of the second year, the seedlings are cultivated on the seedbed. The amount of seed is 50 to 100 kg per 667 m2 (mu). 4. Planting: It can be planted before and after the spring equinox. When planting, choose cloudy weather, reduce water evaporation and ensure high seedling rate. About 3,000 plants per acre are planted, and each row is planted in two rows with a plant spacing of 0.25 to 0.30 m. 5. Seedlings: In order to make the seedlings thick and reduce the nutrient consumption, when the seedling height is about 10cm, the seedlings will be fixed, and 1 to 2 thick and strong seedlings will be left in each hole, and the rest will be wiped out early. 6. Scaffolding: After the seedlings are fixed, in order to distribute the stems and leaves evenly and enlarge the photosynthetic area, the scaffolding should be carried out as early as possible. Insert one strain per plant or one plant, and use two ditches per unit as a unit to take an adult frame. 7. Fertilization method: Take light beforehand (750kg to 850kg per organic fertilizer per 667m2 (mu)), medium weight (1500kg to 1600kg per organic fertilizer per 667m2 (mu)), and make up after every 667m2 (mu) Fertilization principle for organic fertilizers from 750kg to 850kg). Fourth, harvest Harvest period. Harvested after mid-December. When harvesting, be sure to do light planing, light loading, light transport and light handling, and avoid exposure. V. Quality requirements 1. Sensory characteristics: The mature Sanzhen Huaishan has a yellow-brown cylindrical shape with a diameter of ≥45mm and a length of ≥250mm. Dense raw roots, after the break, the fracture is milky white, thick and juicy. It has the characteristics of long-term boiling when cooking, and it tastes crisp and glutinous after cooking. 2. Physical and chemical indicators: Project unit index moisture% ≤73.0 Dietary fiber% ≥ 5.4 Soluble total sugar% ≥0.38 Amino acid content g/100g ≥1.39 3. Safety and other quality technical requirements: Product safety and other quality technical indicators should be in line with relevant national Provisions.

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Producers within the Sanyin Huaishan production area may apply to the Jiaoling County Industry and Commerce and Quality and Technical Supervision Bureau of Guangdong Province for the use of the “Special Mark for Geographical Indication Products”, which shall be reviewed by the Guangdong Provincial Bureau of Quality and Technical Supervision and reported to the General Administration of Quality Supervision, Inspection and Quarantine for approval. Announced. The testing organization of Sanzhen Huaishan is selected by the Guangdong Provincial Bureau of Quality and Technical Supervision in the testing institutions that meet the qualification requirements.