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1993～1995年间，在安大略邦北部的轻壤土上，选用16／103和CM－12（KA）2个品种、2个施钾水平（80kgK2O／hm2和120kgK2O／hm2）和5个施氮水平（60kgN／hm2、70kgN／hm2、80kg／hm2、90kgN／hm2和100kgN／hm2）进行了本项试验。试验的目的是为了找出适合于CM－12（KA）品种种植的施氮量和施钾量。除施氮量外，其它因素对烟叶产量和质量的影响均没有达到显著水平。施氮量从60kgN／hm2增加到80kgN／hm2，鲜烟叶的产量显著增加，施氮量为100kgN／hm2时，产量最高。施氮量80kgN／hm2、90kgN／hm2和100kgN／hm2处理的烟叶（烘烤的烟叶）明显高于其它处理。施氮量60kgN／hm2和70kgN／hm2的等级指数最高。施氮量从60kgN／hm2增加到100kgN／hm2，从下到上不同部位（P、X、L和T）烟叶的糖含量减少，氮和烟碱含量增加。不同施氮量之间，烟叶的物理性状差异不显著。结论是：就烟叶的产量和质量综合评定而言，适宜于CM－12（KA）烤烟品种种植的施氮量和施钾量分别为：80kgN／hm2和80kgK2O／hm2。
Between 1993 and 1995, two cultivars, 16/103 and CM-12 (KA), two K-application rates (80 kgK2O / hm2 and 120 kgK2O / hm2) and five nitrogen rates 60 kgN / hm2, 70 kgN / hm2, 80 kg / hm2, 90 kgN / hm2 and 100 kgN / hm2). The purpose of the experiment was to find the amount of nitrogen fertilizer and the amount of potassium suitable for planting CM-12 (KA) varieties. In addition to the amount of nitrogen, other factors on the yield and quality of tobacco did not reach a significant level. The nitrogen yield increased from 60kgN / hm2 to 80kgN / hm2, and the yield of fresh tobacco leaves increased significantly. When the nitrogen application rate was 100kgN / hm2, the yield was the highest. The amount of nitrogen fertilizer 80kgN / hm2, 90kgN / hm2 and 100kgN / hm2 treatment of tobacco leaves (baked tobacco) was significantly higher than other treatments. The highest grade index was 60 kg N / hm2 and 70 kg N / hm2. The nitrogen application rate increased from 60kgN / hm2 to 100kgN / hm2, and the sugar content decreased and the contents of nitrogen and nicotine increased in different parts (P, X, L and T) from bottom to top. There was no significant difference in the physical properties between different nitrogen rates. The conclusion is: for the comprehensive evaluation of the yield and quality of tobacco leaves, the nitrogen and potassium application rates suitable for planting CM-12 (KA) flue-cured tobacco varieties are 80kgN / hm2 and 80kgK2O / hm2, respectively.