关键词: 缓/控释钾肥, 烤烟

Abstract: Developing the slow/controlled release fertilizers (SRFs) of flue-cured tobacco has great significance in protecting ecological environment and reducing agricultural production costs. In this paper, the internal and external research and application literatures of SRFs were summarized. The SRFs’ concept and characteristics were introduced firstly, and then the effects of SRFs on the growth, K content, quality and economic traits of flue cured tobacco were reviewed, and some problems in current research were pointed out. The SRFs was beneficial to the growth of tobacco, increase of K content in soil and leaves, improvement of quality and enhancing the yield and output value of flue-cured tobacco. But it also had insufficient research in the coated material of SRFs and mechanism, and had poor study about the SRFs mixed with the ordinary fertilizer applications. Therefore，it is necessary to discuss the development of present situation, prospects, problems and countermeasures about the SRFs at home and abroad, so as to provide theoretical basis for industrialization of the SRFs in our country.

Key words: slow/controlled release K fertilizers, flue-cured tobacco