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紫甘薯营养价值高,富含人体必需的多种氨基酸和锰、锌、碘、硒等微量元素及胡萝卜素、花青素等,具有明显的防癌、抗癌保健功能,市场需求与日俱增,其发展前景较好。紫甘薯抗灾力强,耐旱,耐瘠薄,丘陵山区也能种植,在作物较难生长的地方,紫甘薯也能获得较好的产量,近几年卢龙县开始种植紫甘薯,亩产量1500—2000公斤,按照2013年3.5元/公斤的价格计算,亩效益5250元—7000元,经过试验示范及推广应用,现将紫
Purple sweet potato nutritional value, rich in essential amino acids and manganese, zinc, iodine, selenium and other trace elements and carotenoids, anthocyanins, etc., with significant anti-cancer, anti-cancer health care functions, the market demand increasing, and its Development prospects are better. Purple sweet potato strong resilience, drought tolerance, infertility, hilly areas can also be planted, where the crop is more difficult to grow purple sweet potato can also get better yields, Lulong County in recent years began planting purple sweet potato, 1500 acres of output per mu -2000 kg, according to the price of 3.5 yuan / kg in 2013, acres of benefits 5250 yuan -7000 yuan, after demonstration and promotion of the application, will now purple