连山区地处辽西,多丘陵岗地,海拔60-120m,春季十年九旱,适合发展杂粮生产。2002年经过国家检测,被批准为无公害基地,并开始进行无公害甘薯生产。经过几年的生产试验,我们总结出了适合山坡旱地耕作的甘薯覆膜无公害高产栽培技术,并对产出品进行了包装和转化,注册为“虹兴牌”,其 Lianshan District is located in western Liaoning, hilly hills, elevation 60-120m, nine drought in ten years of spring, suitable for the development of cereals production. In 2002 after the national testing, was approved as a pollution-free base, and began pollution-free sweet potato production. After several years of production test, we summarized the pollution-free and high-yielding cultivation techniques for sweet potato covered by dry farming on hillsides, and packed and transformed the output products, which was registered as “Hongxing Brand”