Study on Several New Type Bulk Curing Barns and Their Curing Effects

In order to investigate the performance of bulk curing barns in saving labor force and energy, the curing cost and the economic benefits of four different curing barns were analyzed through experiment. The results showed that, the labor cost of normal bulking barn was significantly higher than intelligent heat-pump bulk curing barn and biomass granule bulk curing barn, with the relevant labor force of cured tobacco saving 0.66 and 0.51 yuan/kg respectively, significantly lower than the mobile barn. The energy cost of normal bulking barn was significantly higher than intelligent heat-pump bulk curing barn, but significantly lower than the biomass granule bulk curing barn and mobile barn. The intelligent heat-pump bulk curing barn and biomass granule bulk curing barn raised the leaf quality and economic characters, with the first-class tobacco proportion improved 4.70 percentage points and 3.57 percentage points respectively, and the corresponding leaf pure average price raised 3.82 and 2.81 yuan/kg. The economic characters of mobile barn were lower than the normal bulking barn. In general, it is more feasible to generalize intelligent heat-pump bulk curing barn and biomass granule bulk curing barn.