Qingzhen Crisp Li is one of the two famous crisps in the hinterland of Suizhong. The production area has a “natural greenhouse” microclimate resource. The fruit shape is slightly flat and round, the fruit top is flat, the apex is concave, and the peel is yellowish and leather. Thin, white with white fruit powder, smooth, thick flesh, light yellow, darker color near the nucleus, dense meat, juicy, crisp, is a high-quality fruit variety in Guizhou Province.

The distribution of Qingzhen Crisp Li is very wide. It is generally cultivated in low mountains, hills, terraces, flat dams and river valleys with an altitude of 300-1500 meters. It is distributed in 11 townships (towns and offices) in the city. Qingzhen is located in the Wujiang River basin on the Yunnan-Guizhou Plateau. Here, the mountains are beautiful, the peaks are green, the winter is warm and the summer is cool, and the fruits are fragrant. The cultivation of crispy plums in Qingzhen is almost all over the towns and towns of the city. Among them, the scale, the upper grade and the relatively complete development, the number of the karst landforms are particularly prominent in the Xindian Town, the duck pond, the Wangzhuang Township Mountain Village and the Lihong Township Xiaohong Rocks and other places, where the hills are undulating, the rocks are mixed, the canyons are gully, the soil is yellow soil, yellow sandy soil, slightly acidic, and it is thick and fertile, and has good permeability. At the same time, the altitude climate is more suitable, the heat is sufficient, and the light is long. It is the most ideal area for the cultivation of crispy plums. The crispy Li is concentrated on the gentle slopes of the rivers along the banks. Yachi River Crisp Li is the fruit variety with the largest area, the best quality and the most stable yield of fruit trees in Qingzhen City and even Guiyang City. It is concentrated in the area around the Yachi River Valley. It has a long history of cultivation. At the beginning, there were few plum trees, but it was located in a low valley, with sufficient heat and long light. In addition, the variety was adaptable, easy to plant and easy to manage, and it was quickly spread and widely developed and quality. Renowned within and outside the province. Due to the beautiful tree pose and the early spring white flowers, the duck pond is a good greening tree species with strong adaptability. The natural small basin of the Yachi River makes the local people have more paddy fields. Crisp Li is concentrated in the gentle hills along the banks of the river. The soil is yellow soil, yellow sandy soil, slightly acidic, and the soil is thick and fertile, and the permeability is good. It avoids the possibility of the death of the plum tree root group and the induction of resin disease due to poor drainage during the rainy season, and creates good soil conditions for the growth of the plum tree, especially the growth and development of the fruit. Due to the good microclimate and soil fertility in the planting area, the favorable topography has created a good environment for the high quality and high yield of the duck pond. Quality characteristics The crispy plums produced in Qingzhen are crispy and fragrant. They are famous for their large size, sweet taste, good color and long picking time. The largest crispy Li planting area in Qingzhen--Jinchi River in Xindian Town and Gaoshan Village in Wangzhuang Township, the crispy plum fruit is slightly flattened, the fruit top is flat, the apex is slightly concave, the peel is yellowish, the skin is thin, and the outer surface is white. Fruit powder, smooth, thick flesh, light yellow, darker color near the nucleus, dense meat, juicy, crisp, average fruit weight 32.3g, sweet and juicy juice, dense meat, crisp and refreshing, clear fragrance, slightly bitter taste It is rich in vitamin C, protein, fat, inorganic salts, calcium, iron and various amino acids. It is a green food for lowering blood pressure, increasing appetite, disease resistance, radiation resistance, beauty and anti-aging. It is favored by consumers every year. They have actively organized agricultural leisure sightseeing tours - Flower Festival and Fruit Festival, which have become an important agricultural industry development brand in the region. Every year in the early spring and from June to August, nearly 10,000 merchants and tourists from all over the world come to visit, appreciate flowers, view the scenery, pick fruit, and visit the park.

Qingzhen Crisp Li quality technical requirements (a) varieties. May fresh, banana plum, Jinmi Li, Qiu Li and so on. (2) Site conditions. The loam and sandy loam soil were selected. The soil pH value was 5.5 to 6.5, the soil layer thickness was ≥60 cm, and the soil organic matter content was ≥2.0%. (3) Cultivation management. 1. Seedling: Grafting seedlings with peaches as rootstocks. 2. Colonization: (1) Time: December 20 to February 5 of the following year. (2) Density: ≤900 plants per hectare. 3. Fertilization: Based on organic fertilizer, ≥15 tons of decomposed organic fertilizer per hectare per year. 4. Plastic pruning: winter pruning combined with summer pruning to ensure canopy ventilation. 5. Environmental and safety requirements: The use of pesticides, fertilizers, etc. must comply with relevant national regulations and must not pollute the environment. (4) Harvesting. Start harvesting time: early maturing varieties in early June, mid-maturing varieties in mid-July, late-maturing varieties in late August, harvested in batches. (5) Quality characteristics. 1. Sensory characteristics: the skin is light yellow, the skin is thin and fleshy, the taste is sweet and juicy, and the crisp is away from the nucleus; there is aroma, slightly bitter and bitter, and the weight of single fruit is ≥25g. 2. Physical and chemical indicators: (1) Early maturing varieties: fruit hardness 8.0kg/cm2 to 10.5kg/cm2, soluble solids ≥12.0%, titratable acidity ≤0.95%. (2) Medium and late mature varieties: fruit hardness 7.5kg/cm2 to 9.5kg/cm2, soluble solids ≥12.5%, titratable acidity ≤0.90%. 3. Safety requirements: Product safety indicators must meet the relevant regulations of the state for similar products.

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Producers within the scope of protection of Qingzhen Crisp Geographical Indication Products may submit an application for the use of “Special Marks for Geographical Indication Products” to the Quality and Technical Supervision Bureau of Qingzhen City, Guizhou Province, which is subject to the examination by the Guizhou Provincial Bureau of Quality and Technical Supervision. The General Administration announced the approval. The statutory testing agency of Qingzhen Crisp is designated by the Guizhou Provincial Bureau of Quality and Technical Supervision.