Fertilization of Virginia tobacco with compound fertilizers. II. Mineral and chemical composition of tobacco
Radka Bozhinova
Резюме: Bozhinova, R. (2019). Fertilization of Virginia tobacco with compound fertilizers. II. Mineral and
chemical composition of tobacco. Bulgarian Journal of Soil Science, Agrochemistry and Ecology,
53(3-4), 17-24
A field study was conducted in 2017 and 2018 to determine the effects of two compound fertilizers
NPK (15:15:15) and NPK (12:12:17) and ammonium nitrate on concentrations of macro and micronutrients in leaves of Virginia tobacco and chemical characteristics of cured tobacco (content of nicotine and reducing sugars). The experimental design was a randomized complete block replicated three times.
A comparison of ammonium nitrate treatment indicated that the use of compound fertilizers significantly increased the P concentration in tobacco leaves, but decreased the content of Zn.
There was strong positive correlation between the yield of cured leaves and content of P in leaves from middle stalk position (r = +0,79).
The application of compound fertilizers slightly increased the reducing sugars’ content in cured tobacco and improved nicotine:reducing sugars ratio as compared to the variant receiving only ammonium nitrate.
chemical composition of tobacco. Bulgarian Journal of Soil Science, Agrochemistry and Ecology,
53(3-4), 17-24
A field study was conducted in 2017 and 2018 to determine the effects of two compound fertilizers
NPK (15:15:15) and NPK (12:12:17) and ammonium nitrate on concentrations of macro and micronutrients in leaves of Virginia tobacco and chemical characteristics of cured tobacco (content of nicotine and reducing sugars). The experimental design was a randomized complete block replicated three times.
A comparison of ammonium nitrate treatment indicated that the use of compound fertilizers significantly increased the P concentration in tobacco leaves, but decreased the content of Zn.
There was strong positive correlation between the yield of cured leaves and content of P in leaves from middle stalk position (r = +0,79).
The application of compound fertilizers slightly increased the reducing sugars’ content in cured tobacco and improved nicotine:reducing sugars ratio as compared to the variant receiving only ammonium nitrate.
Ключови думи: chemical composition; compound fertilizers; macroelemens; microelemens; Virginia tobacco
Дата на публикуване: 2019-10-25
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