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烤烟是我国重要经济作物之一,贵州是我国主要烟区之一。近年来,我国烟叶总产量跃居世界首位,但一些主要产区烟质有所下降,我省烟质也不能适应形势发展的需要。提高烟叶产量,特别是提高质量,是当前生产中急待解决的问题。烟株的生长发育,烟叶的化学成分,产量高低,质量好坏,都直接受内外因素的影响,施肥是主要因素之一。
Flue-cured tobacco is one of the most important cash crops in China. Guizhou is one of the main tobacco-growing areas in China. In recent years, the total output of tobacco in China ranks first in the world, but the smoking quality of some major producing areas has declined. The quality of tobacco in our province can not meet the needs of the development of the situation. To increase the output of tobacco leaves, especially to improve the quality, is an urgent issue in current production. Tobacco growth, tobacco chemical composition, the level of output, quality is good or bad, are directly affected by internal and external factors, fertilization is one of the main factors.