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Effect of long-term potassium fertilization on the chemical composition of Oriental tobacco

Radka BOZHINOVA

Puni tekst: engleski, PDF (279 KB) str. 0-0 preuzimanja: 420* citiraj
APA 6th Edition
BOZHINOVA, R. (2012). Effect of long-term potassium fertilization on the chemical composition of Oriental tobacco. Journal of Central European Agriculture, 13 (3), 0-0. Preuzeto s https://hrcak.srce.hr/86518
MLA 8th Edition
BOZHINOVA, Radka. "Effect of long-term potassium fertilization on the chemical composition of Oriental tobacco." Journal of Central European Agriculture, vol. 13, br. 3, 2012, str. 0-0. https://hrcak.srce.hr/86518. Citirano 27.10.2021.
Chicago 17th Edition
BOZHINOVA, Radka. "Effect of long-term potassium fertilization on the chemical composition of Oriental tobacco." Journal of Central European Agriculture 13, br. 3 (2012): 0-0. https://hrcak.srce.hr/86518
Harvard
BOZHINOVA, R. (2012). 'Effect of long-term potassium fertilization on the chemical composition of Oriental tobacco', Journal of Central European Agriculture, 13(3), str. 0-0. Preuzeto s: https://hrcak.srce.hr/86518 (Datum pristupa: 27.10.2021.)
Vancouver
BOZHINOVA R. Effect of long-term potassium fertilization on the chemical composition of Oriental tobacco. Journal of Central European Agriculture [Internet]. 2012 [pristupljeno 27.10.2021.];13(3):0-0. Dostupno na: https://hrcak.srce.hr/86518
IEEE
R. BOZHINOVA, "Effect of long-term potassium fertilization on the chemical composition of Oriental tobacco", Journal of Central European Agriculture, vol.13, br. 3, str. 0-0, 2012. [Online]. Dostupno na: https://hrcak.srce.hr/86518. [Citirano: 27.10.2021.]

Sažetak
The effects of the different potassium rates (0, 75 and 450 kg K2O ha-1) on nutrient concentrations in the above-ground biomass and chemical characteristics of sun-cured tobacco have been studied in a stationary field trial. Annual fertilization with 75 kg K2O ha-1 was adequate to maintain soil K concentration near the initial value. It was found that yield of cured leaves was not significantly affected by rate of K application when oriental tobacco was grown on soils with high available soil K. With the increase of K fertilization rate the content of the potassium in leaves increased from 0.65 to 4.49%. The concentration of Ca and Mg in the leaves ranged from 2.03 to 5.23% and from 0.52 to 0.71%, respectively and decreased with increases in added potassium. No effect of K rates on nicotine and protein content was noted. Only the reducing sugars’ content tended to increase to 11.42% at the highest K rate. Fertilization with moderate potassium rates (75 kg K2O ha-1) on soils
high in available K is necessary to maintain the good potassium reserves. When oriental tobacco was grown on alkaline soils with high available K and Ca, potassium fertilization improves K nutrition and therefore may favorably affect burning properties of tobacco.

Ključne riječi
chemical composition; oriental tobacco; potassium fertilization

Hrčak ID: 86518

URI
https://hrcak.srce.hr/86518

Posjeta: 606 *