Winter bamboo shoots, the bamboo shoots are full, the shell is thin and fleshy, and the shape is horseshoe-like, with a sense of solidity. The entrance is delicate and crisp, sweet and delicious. The winter bamboo shoots are bamboo shoots developed from the lateral buds of the bamboo buds before and after the autumn. Because they are unearthed at the end of the year, the bamboo shoots are tender and tender, and they are a dish that people like very much. Winter bamboo shoots contain protein and a variety of amino acids, vitamins, and trace elements such as calcium, phosphorus, iron and rich in cellulose, which can promote intestinal peristalsis, which not only helps digestion, but also prevents constipation and colon cancer. Winter bamboo shoots are a high protein, low starch food. The polysaccharide substance contained in it also has a certain anti-cancer effect.

Jiaoling County has a long history of planting bamboo and producing winter bamboo shoots, which has been around for more than 2,000 years. Most bamboos prefer a warm and humid climate, while Jiaoling is located near the Tropic of Cancer. The four seasons are mild, with plenty of sunshine and abundant rainfall, which is very suitable for bamboo growth. In addition, the soil pH in the territory is about 5.4-6.7, the soil layer is deep, loose, without any pollution, rich in organic matter and various trace elements, and fully absorbs the nutrients and essences in the soil for the winter bamboo shoots, becoming rich and fresh. The basic conditions are provided. Thanks to this unique natural environment, “Jiaoling Winter Bamboo Shoot” has become one of the most prestigious local products in the region. "Medical doctors do not record" said that "the main thirst, the water channel, benefit Qi, can eat for a long time"; "Compendium of Materia Medica" said that it "profits nine 窍, blood circulation, phlegm, digestion, swelling", especially good at clearing Heat up.

Technical requirements for quality of Jiaoling winter bamboo shoots 1. Variety Bamboo. Second, the site conditions Select an altitude of 500 to 750 meters, slope 15 to 25 degrees, loose and breathable wet, good drainage, convenient transportation, close to the water source, light-filled valleys, gentle slopes. The soil has a pH of 5.4 to 6.7, an organic matter content of ≥23.1 g/kg, and a red and yellow loam with a soil depth of ≥50 cm. Third, cultivation management 1. Choose mother bamboo: choose to grow strong, branch is low, branches and leaves are flourishing, bamboo is normal, no pests and diseases, 1 to 3 years old, bamboo with a diameter of 3cm to 6cm is mother bamboo. 2. Planting: Put the mother bamboo into the hole, the upper part of the bamboo raft is slightly lower than the soil surface, the whip soil is closely connected, and it is tightly tightened. When filling the soil, it prevents damage to the whip root and bamboo shoots, watering and moisturizing, and piling is fixed. The planting time is from late February to early April, and the planting density is 625 (clusters) to 833 (clusters) per hectare. 3. Fertilization: fertilize twice in the first year, apply 0.25kg of compound fertilizer per plant from May to June, or apply 0.15kg to 0.25kg of urea. From May to June of the second year, apply 375kg of compound fertilizer per hectare. From November to December, organic fertilizer is applied for 20 tons per hectare; from May to June of the third year, 450 kg of compound fertilizer is applied per hectare, and from November to December, organic fertilizer is applied for 30 tons per hectare. 4. Harvesting The harvesting period is from the end of November to the end of February of the second year. It should be harvested when the bamboo shoots are exposed from the soil surface 1cm to 2cm. When the bamboo shoots are taken, the soil around the bamboo shoots is first opened to expose the bamboo shoots. In the enlarged and curved part of the bamboo shoots, cut the bamboo shoots from the inside to the outside, and retain the remaining蔸 More than 2 full bamboo shoots, the cut is smooth, parallel to the bamboo shoots. After cutting the bamboo shoots, return the topsoil back to the original place. V. Quality Features 1. Sensory characteristics: The sensory requirements for fresh winter bamboo shoots are shown in Table 1. Table 1 Sensory requirements for fresh winter bamboo shoots Item Requirements Color, shape Bamboo shoots are light yellow, bamboo shoots are white or milky white, bamboo shoots are full, shells are thin and fleshy, and the shape is horseshoe-like, with a sense of solidity. Taste and smell The bamboo shoots are rich in flavor, the bamboo shoots are delicate and crisp, sweet and delicious. 2. The physical and chemical indicators of fresh winter bamboo shoots are shown in Table 2. Table 2 Fresh winter bamboo shoots physical and chemical indicators project indicators single bamboo weight / (g) ≤ 200 amino acid total content * / (g / 100g) ≥ 2.0 glutamic acid * / (g / 100g) ≥ 0.28 total sugar (in terms of glucose) * ( /%) ≥1.6 Crude fiber*(/%) ≤1.2 Note: The item with * is the nutrient content of edible bamboo shoots 3. Safety and other quality technical requirements: Product safety and other quality technical requirements should comply with relevant national regulations.

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Producers within the Jiaoling winter bamboo shoots production area may apply to the Jiaoling Industrial and Commercial 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. . The testing agency for Jiaoling winter bamboo shoots is selected by the Guangdong Provincial Bureau of Quality and Technical Supervision in the testing institutions that meet the qualification requirements.