Agriculture, Vol. 25 No. 2, 2019.
Original scientific paper
https://doi.org/10.18047/poljo.25.2.2
Effect of nitrogen fertilization rate and type of nitrogen fertilizer on agronomic and morphological traits of flue-cured tobacco
Ankica Budimir
; British American Tobacco, Zagrebačka 52, 34340 Kutjevo, Croatia
Brankica Svitlica
; Polytechnic in Požega, Požega, Croatia
Darko Kiš
; J. J. Strossmayer University of Osijek, Facilty of Agrobiotechnical Sciences Osijek, Osijek, Croatia
Ana Lovrić
; University of Zagreb, Faculty of Agriculture, Svetošimunska cesta 25, 10000 Zagreb, Croatia
Hrvoje Šarčević
; University of Zagreb, Faculty of Agriculture, Svetošimunska cesta 25, 10000 Zagreb, Croatia
Abstract
The aim of this study was to determine the effect of nitrogen (N) fertilization rate of 30 and 45 N kg/ha, as well as three commercial N fertilizers, CaNO3 (15% N), KAN (27% N) and YaraMilaTM Cropcare (8:11:23) on the agronomic traits: yield, price, and value, as well as six morphological traits of flue-cured tobacco. The field experiments, which included three Croatian tobacco cultivars, were conducted in four environments. Nitrogen fertilization had a significant effect only on yield components: length, width and area of the 9th leaf, whose values for fertilization with 45 kg N/ha were 2.2%, 3.5%, and 5.8% higher, respectively, compared to fertilization with 30 kg N/ha. The type of N fertilizer did not have a significant effect on any of the traits. The pattern of correlations between morphological and economic traits was influenced by the environment, as well as by the level of fertilization. Although no effect of fertilization level on economic traits was found, the significant increase in yield components at 45 kg N/ha compared to 30 kg N/ha suggests a higher level of fertilization as a guarantee of ensuring high and stable yields and quality of the cured leaf.
Keywords
flue-cured tobacco; nitrogen; fertilization; yield; quality
Hrčak ID:
229474
URI
Publication date:
5.12.2019.
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