Wuwei, located in Hexi Corridor, with vast land and abundant sunshine, has been an ideal place for wine grape and wine production in China since ancient times. In recent years, with the help of the golden signboard of "China Wine City", the city has made every effort to build a wine industry chain from planting, brewing to marketing, attracting well-known domestic and foreign wine enterprises to invest and start businesses with a good investment environment. Up to now, Wuwei City, Gansu Province has a planting area of 260,000 mu, accounting for 13% and 84% of the total planting area of the whole country and the whole province respectively, and has become one of the main wine grape producing areas in China.
Wuwei is located at the eastern end of Hexi Corridor, and the grape planting area is located at east longitude10143'-104 43', and north latitude 36 46'-38 09'. It is located in the desert areas in the north of Minqin County and Gulang County in Wuwei City, just in the world where grapes are planted at 30-40 degrees north latitude.
Temperature: The monthly average temperature in the growing season of the project area is very close to Bordeaux, France, a world-famous grape producing area. The temperature in July in hot months is 265,438 0.9℃, which is almost the same as that in Bordeaux, and the temperature in September in fruit maturity is 65,438 0.4℃, which is lower than that in Bordeaux, which is conducive to maintaining the high acidity of grapes.
The effective accumulated temperature Gulang producing area in the project area ≥ 10℃ is 1209.5℃, Wuwei producing area is 1363℃ and Minqin producing area is 1509℃, which belongs to the coolest grape growing area and is close to Bordeaux, France1327.
Lighting: The project area is located along the desert in mid-latitude area, with dry air, high atmospheric transparency and rich light energy resources. The annual sunshine hours are 2730-3030 hours, the sunshine rate is 64-68%, and the total solar radiation reaches 134- 138 kcal/cm2, which is equivalent to Huailai in Hebei, and higher than Penglai and Tianjin in Shandong. In addition, ultraviolet rays and scattered light are more abundant than those in East China, which is more conducive to photosynthesis.
In addition, the calculation of light energy coefficient (IH) shows that the area along the desert to the north of Gulang-Ganwu Railway is 3.50, Wuwei is 4. 14 and Minqin is 4.66, which meets the requirements of early-maturing varieties of 2.6-2.8 and mid-late-maturing varieties of 3.5-4.5.
Precipitation: The precipitation in the project area is scarce, the annual precipitation is below 200mm, the evaporation is 2600-3 100mm, the relative humidity is low, and the water used for agricultural production is mainly irrigation. Compared with the precipitation-rich producing areas in the east of China, the pests and diseases are greatly reduced, which is very suitable for producing pollution-free green food.
Soil: The soil in the project area is mainly sandy soil with loose structure and large porosity, which is beneficial to the growth of grape roots. Sandy soil is rich in minerals, with rapid heat exchange and large temperature difference, which is beneficial to the coloring and ripening of berries and is very suitable for planting high-quality grapes. However, the soil organic matter content is low, about 0.8%, and the PH value is about 8, which is slightly higher. Therefore, more organic fertilizers should be applied and a certain amount of acid improvers should be used in vineyard management.
Other conditions: the project area is a traditional irrigated agricultural area, with convenient irrigation conditions, developed social economy, convenient transportation and communication conditions and sufficient electric energy, which provides favorable conditions for grape planting. The large-scale development of wine grapes in Wuwei began at 1983. Huangyanghe Farm took the lead in introducing more than 20 varieties of high-quality wine grapes, and has formed a production base of 20,000 mu of wine grapes with an annual output of 5,000 tons of raisin wine.
In recent years, with the development of the national grape industry and the westward advancement, Gansu Province listed the construction of Wuwei grape base as one of the agricultural industrialization projects of "Rebuilding Hexi". Since 1998, 37,000 mu of grapes have been continuously developed. The overall planning of the grape base in Wuwei, from 1999 to 200 1, will focus on state-owned agricultural and forestry farms and build a grape base of 654.38+10,000 mu. It is planned to develop the total scale to 200,000 mu by 2005. At present, there are 1 wineries in Wuwei, and there are 2 wineries transformed and expanded from liquor factories, among which Mogao Liquor Company is the leading enterprise in wine production in northwest China. After more than ten years of careful breeding, the company has determined several grape varieties that are most suitable for local cultivation, and completed the technical transformation and expansion project of 1998 10000 tons of wine. Practice has proved that the natural conditions here can really give full play to the quality of world-famous grapes such as Cabernet Sauvignon, Cabernet Sauvignon, Black Pi Nuo and Riesling.