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研究结果表明,在土壤淋溶作用较强、游离氯含量低的贵州北部烟区,适当施用含氯的肥料对烟株生长和烟叶开片有促进作用;在施氯量22.5～50.0kg/hm2范围内,不仅可以提高烟叶外观质量,增进香气质、香气量,改善烟叶内在品质,而且能明显提高上等烟比率、原烟均价、烟叶产量和产值。从经济、安全施氯考虑,贵州北部烟区,施氯量以45～50kg/hm2为宜。
The results showed that proper application of chlorine-containing fertilizers could promote tobacco plant growth and tobacco leaf opening in northern Guizhou tobacco-growing areas with stronger soil leaching and lower free chlorine content. Under the condition of chlorine application rate of 22.5-50.0 kg / hm2 Range, not only can improve the appearance of tobacco quality, improve the aroma quality, aroma, improve the intrinsic quality of tobacco, but also significantly improve the superior tobacco ratio, the average price of raw tobacco, tobacco production and output value. From economic and safety considerations of chlorine, tobacco in northern Guizhou, chlorine rate of 45 ~ 50kg / hm2 is appropriate.