水是一切作物正常生长发育的基本要素。烤烟是一种对水分比较敏感的作物,水分过多或不足均会影响烤烟的生长发育及烟叶质量。近年来,由于气候环境变化,烤烟生长期间,高温、干旱等恶劣天气频繁发生,土壤水分缺失,烤烟生长供水不足,物质积累不充分,烟叶早熟落黄,不宜烘烤,等级低、清杂色多,可利用率低,导致种烟经济效益大幅下降,严重阻碍了烤烟生产持续发展。为此,四川省烟草 Water is an essential element for the normal growth and development of all crops. Flue-cured tobacco is a water-sensitive crops, too much or too little water will affect the growth and development of tobacco and tobacco quality. In recent years, due to the change of climatic environment, harsh weather such as high temperature, drought and so on occurred frequently during the growth of flue-cured tobacco. Soil moisture was absent, water supply for growing flue-cured tobacco was insufficient, material accumulation was insufficient, More and low availability, resulting in a substantial decline in the economic benefits of tobacco, seriously hampered the sustainable development of tobacco production. To this end, Sichuan tobacco