Keshan potato

Keshan County, Heilongjiang Province, is the hometown of potatoes. The main landform of the county is hilly and hilly plain. The overall trend in the territory is high in the northeast and hilly; The southwest is low-lying, undulating and full of hills and rivers. The soil in Keshan County is leached chernozem, which is soft and fertile, with deep humus layer and rich in organic matter. It is known as the "Pearl of Black Soil", with a pH value of 6.8-7.0, an organic matter content of 4.0%, available nitrogen of 80-150ppm, available phosphorus of 14-30ppm and available potassium of more than 150ppm. The soil landform is very suitable for potato growth. There are five rivers in the territory: Nemore River, Wuyuer River, Runjin River, Aolonggou and Taixi River. These rivers have sufficient water storage in summer and are pollution-free, which is conducive to the development of irrigation water. Keshan County is located in the third and fourth accumulated temperature zones of Heilongjiang Province, and belongs to the continental monsoon climate of moderate cold temperate zone, with an average annual sunshine hours of 2709.9 hours, an average annual temperature of 1.1℃, an effective accumulated temperature of ≥10℃ of 2500℃, a frost-free period of 125 days, and an average annual rainfall of 550 mm, which is concentrated in June-August, just when potato tubers need more water. The above climatic characteristics are suitable for the physiological characteristics of potato growth, such as liking cold and cool, long sunshine and large demand for water and fertilizer for swollen tubers. The main varieties of Keshan potato are Heifeng, Huangmazi, etc. Because of its large size, good taste and high starch content, it is deeply loved by consumers and has become the first choice for many vegetable wholesalers and retailers. Keshan Potato Black Dragon Keshan Green Food Association There are 10 townships in Keshan County, Heilongjiang Province, including Gucheng Town, Shuanghe Township, Henan Township, Hebei Township, Xianghua Township, Gubei Township, Beilian Town, Shuguang Township, Beixing Town and keshan town. East longitude 125 10 ′ 57 ″-126 8 ′ 18 ″, north latitude 47 50 ′ 51 ″-48 33 ′ 47 ″, with a protected area of 200,000 hectares, including 27,000 hectares for potato production. Keshan potato is a geographical indication protection product. Keshan potato is a geographical indication certification trademark. Keshan potato is a geographical indication product of agricultural products.
Reprinted with attribution： https://cnlocality.com/(Chinese Specialty Products)