Production environment of Jintang purple potato

Jintang County is located in the west of Sichuan Basin, spanning two fold belts in the middle and west of the basin, along the eastern edge of Chengdu Plain and the western edge of the hills in the middle of Sichuan, and the middle part of Longquan Mountains extends from northeast to southwest, forming a terrain with gradually decreasing northwest height to southeast. The county is located at the junction of Chengdu Plain and the hills in central Sichuan. The area is composed of flat dams, hills and low mountains, with the western Sichuan plain in the northwest, and alluvial flat dams and shallow hills account for 65,438+04.7% of the total area. The southeast is subordinate to the hilly area in the middle of Sichuan, with hills accounting for 74%; Middle and low mountains 1 1.3%. The highest terrain is in Laoniupo, Jianshan, Qixian Township, with an altitude of 1048.7 meters; The lowest is located in Yunhe Longqiao Village, Zhenjiang, with an altitude of 386 meters. The territory belongs to the "northern part of the basin" in the subtropical humid climate zone of Sichuan Basin. Located in the east of Chengdu Plain, on the west edge of the hills in the middle of Sichuan. It belongs to the central part of China subtropical monsoon climate zone. The climate is mild, with four distinct seasons, abundant rainfall, high humidity, plenty of clouds, insufficient sunshine, low average wind speed, long frost-free period and remarkable continental monsoon climate, characterized by early spring, long summer and short autumn and winter. It is very suitable for the growth of purple sweet potato. The produced purple sweet potato has the characteristics of good appearance, moderate anthocyanin, excellent quality and storage resistance, which is obviously different from similar products in other places.