Fecha de publicación: 06/08/2021 Fuente: Wipo Tobacco Agriculture The invention discloses a method for increasing tobacco nicotine yield per unit land area. According to the method, comprehensive management control is carried out on each stage of tobacco cultivation and a conditioning and drying stage, a series of measures for increasing the nicotine content of tobacco leaves such as low ridging, high-density cultivation, budding topping without axillary bud removal, harvesting from top to bottom, rolling fixation and the like are adopted for optimization control, and the synthesis and degradation rules of nicotine in the tobacco leaves in the growth process and the modulation process are fully combined, so that stable production of the high-nicotine-yield tobacco leaves is achieved, traditional tobacco leaf production transformation and diversified development are achieved, the international competitiveness of tobacco under the new situation is improved, and an industrial chain of tobacco agricultural production under the new situation is formed. The high-nicotine tobacco leaf production requirement is combined, highly mechanized production is adopted, the labor input in the tobacco production process is reduced, the labor cost is reduced, and the production efficiency is greatly improved.