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佳县位于毛乌素沙漠南缘,十年九旱,平均海拔1 200m,山区气候,光照充足,昼夜温差大,土壤质地适合马铃薯生长发育。目前已发展成为陕西省榆林市天然优质马铃薯繁育基地,所产薯除自食和用种外,多数供应河北、河南、山东、甘肃、宁夏、内蒙古、浙江和山西等地。1轮作倒茬为预防病害侵染,马铃薯的前茬是禾本科作物,切忌茄科、十字花科为前茬。实行3~4年轮作。整地分两次进行,10月中旬前茬收获后用微型旋耕机深翻改
Jiaxian County is located in the southern margin of the Mu Us Desert, with ten years of drought and an average elevation of 1200 m. The mountainous climate is bright with abundant temperature difference between day and night, and the soil texture is suitable for potato growth and development. At present, it has become a natural high-quality potato breeding base in Yulin City, Shaanxi Province. Most of its products are supplied from Hebei, Henan, Shandong, Gansu, Ningxia, Inner Mongolia, Zhejiang and Shanxi. 1 rotation cropping to prevent disease infection, the potato is a crop before the crop, avoid Solanaceae, Cruciferae for the former crop. The implementation of 3 to 4 years rotation. The preparation of soil is carried out in two stages. After the harvest in mid-October, the soil is tweaked with a mini rotary cultivator