Heyang sweet potato has a long history of planting and good product quality, which occupies a dominant position in the northwest market of China.
According to county records, in the third year of the Republic of China, villagers in Nanshun Village, Xinchi Township introduced sweet potatoes and began to plant them sporadically. In the sixties and seventies of last century, in order to solve the shortage of rations, the whole county was planting high-yield sweet potatoes. 1987, the county planted sweet potatoes 10.5 million mu, which was the largest planting area in history. 1996 The plastic film cultivation experiment of sweet potato was successful, and the average yield per mu was 1760 kg, a record high.
territorial scope
Heyang Sweet Potato Reserve covers 6/kloc-0 administrative villages in 3 towns under the jurisdiction of Heyang County, Weinan City, Shaanxi Province, east to Xingjiazhuang Village of Xinchi Town, south to Lujiazhuang Village of Heichi Town, west to Pulu Village of Heichi Town and north to Beili Village of Chengguan Town. Geographical coordinates are north latitude11009 ′ 35.61″-12 ′ 21.77 ″ and 3505 ′ 40.83 ″-35 ″. The protected area is 30,000 mu and the total output is 90,000 tons.
Product quality characteristics
1. External sensory characteristics: Heyang sweet potato is about 18-22_, about 8- 10_, and weighs about 150-300g, with purple skin, yellowish flesh, long spindle-shaped potato pieces, sweet Regan Noodles and crisp fragrance. 2. Unique intrinsic quality index: Heyang sweet potato is rich in starch, crude fiber, soluble sugar, VA, VC, calcium and so on. , in which the starch content is not lower than 18.0g, the crude fiber content is not lower than 0.7g, the soluble sugar content is higher than 7.8g, the VC content is higher than18.0g, and the calcium content is higher than 100g. 3. Safety requirements: the production base and products of Heyang sweet potato mark users must meet the requirements of the origin and products of pollution-free agricultural products, or the batch sampling inspection must meet the quality and safety requirements of roots, rhizomes, potatoes and taro vegetables in the document of Nongban Quality Zi [2015] No.4.