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1998～ 1999年连续 2年在南平市酸性、中等肥力的同一块水稻土上进行田间小区试验 ,研究科学施用石灰对烤烟农艺性状、提高烟叶产质量及降低氮素用量效果的影响。 2年的试验研究结果表明 ,在南平烟区植烟土壤的pH4 7左右的酸性条件下 ,K32 6品种公顷施石灰 2 2 50kg ,在同样的产质量效益下 ,公顷施用石灰可降低氮素用量 30～ 60kg ,磷素 36～ 72kg ,钾素 90～ 180kg。
Field experiments were conducted on the same paddy soil with acidic and medium fertility in Nanping from 1998 to 1999 for two consecutive years to study the effects of lime application on the agronomic characters, quality and quality of tobacco and the effect of nitrogen application. The results of two years of experiments showed that under the acidic conditions of about pH 4.7 of tobacco-growing soil in Nanping tobacco-growing area, K32 6 hectare applied 22 500 kg of hectare of lime. Under the same yield and quality benefit, hectare application of lime reduced the amount of nitrogen 30 ~ 60kg, phosphorus 36 ~ 72kg, potassium 90 ~ 180kg.