The equipment to control temperature and humidity in burley tobacco air-curing barns were studied to solve the problem of barn rot during air-curing processes at high altitude districts. The results indicated that at high altitude districts, the proper relative humidity in air-curing barns could be reached by raising temperature and ventilation through building and using stoves and flues, which improved smoking quality, aroma, flavor and irritation of leaves, increased high grade leaves by 14.61% and middle grade leaves by 8.01%, and also increased yield by 23.96%, production value by 4 874.10 yuan/ha .

This paper expounds the important significance of considering energy-saving in the field of HVAC,probes into the problems existing in present HVAC system,and advances some measures for solving the problems in energy-saving of HVAC system.

吸胀阶段的低温严重抑制白肋烟种子的正常萌发,渗透调节作为种子处理措施,能有效地提高白肋烟种子吸胀阶段的抗冷性.在白肋烟种子遭遇吸胀冷害后进行发芽试验,播种后第4天对照(CK)的发芽百分率仅为15.5%,而经过渗透调节处理的种子发芽百分率就已经达到了85.2%～93.3%,极显著高于对照(CK),在发芽势与发芽率方面,渗透调节处理的种子均极显著高于对照(CK).