关键词: 氮磷钾配比, 攀枝花, 烤烟, 云烟97

Abstract: [Objective] In order to promote the application of balanced fertilization on tobacco and popularize the new varieties tobacco in Panzhihua area. [Method] Yunyan 97 was selected as the experiment materials, and the quadratic regressive orthogonal revolving design experiment was used to gain the optimum application ratio of NPK fertilizer for stable yield and output of Yunyan 97 in Panzhihua tobacco area. [Results] The results showed that the change of application ratio of NPK fertilizer had significant effect on the yield and output of Yunyan 97. With the rising of nitrogen dosage, the yield of Yunyan 97 was raised in a certain range, while excessive use of nitrogen would reduce the output. With the use of phosphorus and potassium fertilizers could balance the yield and output of Yunyan 97 within a certain range. [Conclusion] Considering the realities of Panzhihua tobacco area, the best ratio of fertilizers application for Yunyan 97 was N 6 kg/667 m², P₂O₅ 7 kg/667 m², K₂O 25 kg/667 m², which can obtain the stable yield of 175 kg/667 m² and the output can reach to 3 500 yuan/667 m².

Key words: NPK ratio, Panzhihua, flue-cured tobacco, Yunyan 97