Productivity and quality of Virginia tobacco as depending on nitrogen fertilization and topping
Keywords:
nitrogen fertilization; quality; tobacco; topping; yieldAbstract
A field study was conducted in 2015 and 2016 to determine the effects of different N rates (0, 20 and 40 kg N ha-1) and time of topping (topping at early flowering and topping at full flowering) on yield and quality of Virginia tobacco. Nitrogen rate was found to be important factor for increasing the leaf area. The leaf area for upper leaves was also strongly influenced by time of topping. The dry weight per unit area of the leaf depends more strongly on the time of topping, especially in the upper leaves. Cured leaf yield significantly increased with increasing the amounts of N fertilizer. Leaf yield tended to increase by 10.1% when tobacco was topped at early flowering stage. The best quality tobacco (as determined by the percentage of first grade dried tobacco) was produced by topping in the full flowering stage. Fertilization with the highest nitrogen rate (40 kg N ha-1) decreased leaf quality. When Virginia tobacco was grown on Cleyic-Chromic Luvisol with low humus and total nitrogen content, the fertilization with 20 kg N ha-1 results in good ratio between I-st grade dry tobacco and yield.
References
Arsov, K. (1985). Mineral fertilization and quality of Burley tobacco. Bulgarian Tobacco, 2, 27-31 (Bg).
Bailey, W. A. (2004). Influence of nitrogen rate on growth, yield, and leaf chemistry of dark tobacco. In: CORESTA Congress, Kyoto-Japan, CD-ROM, AP 1.
Covarelli, L. (1999). Effect of nitrogen fertilization on the photosynthetic activity, growth and yield of Virginia to bacco (Nicotiana tabacum L.). Beiträge zur Tabakforsc hung International/Contributions to Tobacco Research, 18(6), 245-254.
Donev, N., Arsov, K. & Doneva, M. (1970). Influence of the time and manner of topping on Burley tobacco. Bulgarian Tobacco, 7, 29-37 (Bg).
Marchetti, R., Castelli, F., & Contillo, R. (2006). Nitrogen requirements for flue-cured tobacco. Agronomy Journal, 98(3), 666-674.
Mesbah, R., Mohsenzadeh, R. & Seraji, M.R. (2014). Ef fect of topping height and timing on quantity and quality in flue-cured tobacco (var. K326). International Journal of Advanced Biological and Biomedical Research, 2(4), 1388-1395.
Moustakas, N. K., & Ntzanis, H. (1998). Estimating flue cured tobacco leaf area from linear measurements, under Mediterranean conditions. Agricoltura Mediterranea, 128(3), 226-231.
Orphanos, P. I., & Metochis, C. (1989). Effect of topping and irrigation on yield of flue-cured tobacco grown in a Mediterranean environment. The Journal of Agricul tural Science, 113(1), 109-114.
Shabanov, D., Pophristov, V., Tomov, N., Arsov, K. & Dimitrov, L. (1970). Growing of large leaf tobaccos in Bulgaria. Hristo G. Danov, Plovdiv (Bg).
Turšić, I., Čavlek, M. & Ćosić, T. (2004). The influence of fertilization with different amounts of nitrogen on the yield and quality of Virginia tobacco in Croatia. Tutun/ Tobacco, 54(5-6), 111-115.
Van Tonder, S. M., Kruger, J., Boshoff, H. & Dippenaar, M. C. (2001). The effect of cultivation practices on the nicotine and sugar content of flue-cured tobacco in South Africa. In: CORESTA Congress, Cape Town - South Africa, CD-ROM, AP 10.
Downloads
Published
License
Copyright (c) 2018 Bulgarian Journal of Crop Science
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
