Fuente: WIPO "tobacco agriculture" The invention discloses a fertilization method for increasing the potassium content of cured tobacco. The method comprises the following technical steps that 1, base fertilizer is layered, and 30-40 kg/667m composite fertilizer special for tobacco and 250-300 kg/hm potassium humate are applied to a pond; 2, drip irrigation and dressing of 10-20 kg/667m potassium nitrate and 5-10 kg/667m potassium fulvic acid are conducted; 3, 40-50 days after planting, 5-10 kg/667m potassium fulvic acid is applied to surfaces of leaves, wherein the concentration is 0.2-0.4%; 4, the proportion ofnitrogen to potassium in all chemical fertilizer is 1:(3-3.5). According to the fertilization method, the potassium content of the cured tobacco can be effectively increased, the input of chemical potassium fertilizer is controlled, the utilization efficiency of the potassium fertilizer is improved, the labor input of fertilization is reduced, and the production benefit of the cured tobacco is improved.2>2>2>2>2>