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目的:为了提高肥料利用率,调节烟田土壤供肥保肥能力,进而提高烤烟产质量。方法:采用田间试验,以云烟97作为供试材料,研究施用不同的肥料增效剂对烤烟土壤理化特性、烟叶钾营养、生长发育及产质量的影响。结果:施加不同的肥料增效剂,可以改善土壤理化特性,提高烟叶钾营养,从而促进烤烟生长发育,同时获得较好的产量和经济效益。结论:常规施肥+柠檬酸(54kg/hm2)处理(CA)效果最好,适宜在陕西汉中烟区推广。
Objective: In order to improve the utilization rate of fertilizer, regulate soil fertility and fertilizer-holding capacity of tobacco so as to improve yield and quality of tobacco. Methods: A field experiment was conducted with Yunyan 97 as test material to study the effects of different fertilizer synergists on soil physical and chemical properties, potassium nutrition, growth and yield and quality of tobacco leaves. Results: Application of different fertilizer synergist can improve soil physical and chemical properties, increase potassium nutrition of tobacco leaves, thus promote the growth and development of flue-cured tobacco, and at the same time obtain better yield and economic benefits. Conclusion: Conventional fertilization + citric acid (54 kg / hm2) treatment (CA) is the best, which is suitable for popularization in Hanzhong tobacco area of Shaanxi Province.