关键词: 延安, 延安, 苹果花期 冻害

Abstract: In order to further optimize tobacco leaf curing process and popularize loose leaf curing technology in Jianyang District, Nanping City, the loose leaf bulk curing demonstration experiments of flue-cured tobacco with leaf-holding needle were conducted in Xiaohu Town and Huilong Village. A new air grid and lifting device were developed. Then experiments adopting new and traditional equipment were conducted, and the tobacco appearance quality, smoking quality, cost of labor force and energy and economic characteristics were evaluated and compared. The results showed that using loose leaf bulk curing with leaf-holding needle, loading tobacco leaves with the new lifting device outside could save 1.14 labors every curing process and reduce the cost by 0.11 yuan per kilogram of cured tobacco. Moreover, the new method could improve chemical components and sensory qualities of cured leaves. The study can provide theoretical support for development and popularization of leaf curing technology.