Izvorni znanstveni članak
https://doi.org/10.5513/JCEA01/27.1.4985
Effect of different nitrogen fertilizer formulations on the morphological and phytochemical characteristics of various lettuce (Lactuca sativa L.) cultivars
Nenad PAVLOVIĆ
; University of Kragujevac, Faculty of Agronomy in Čačak, Cara Dušana 34, 32000 Čačak, Serbia
*
Jelena MLADENOVIĆ
; University of Kragujevac, Faculty of Agronomy in Čačak, Cara Dušana 34, 32000 Čačak, Serbia
Ivana ŽIVKOVIĆ
; Institute for Vegetable Crops, Karadjordjeva 71, 11420 Smederevska Palanka, Serbia
Dalibor TOMIĆ
; University of Kragujevac, Faculty of Agronomy in Čačak, Cara Dušana 34, 32000 Čačak, Serbia
Milomirka MADIĆ
; University of Kragujevac, Faculty of Agronomy in Čačak, Cara Dušana 34, 32000 Čačak, Serbia
Vladimir ZORNIĆ
; Institute for Forage Crops, 37000 Globoder, Kruševac, Serbia
* Dopisni autor.
Sažetak
This study investigated the effects of different nitrogen mineral fertilizer formulations on the morphological and phytochemical traits of five butterhead lettuce (Lactuca sativa L.) cultivars grown under protected conditions. The experiment was conducted in a greenhouse during the winter–spring growing season. The analyzed cultivars included Genezis, Zeralda, Majska kraljica, Atrakcija, and Nansen. Three types of nitrogen fertilizers—ammonium sulfate, ammonium nitrate, and urea—were applied at a rate of 100 kg N/ha. The observed parameters included head weight, head height, vitamin C content, and nitrate concentration in the leaves. Significant differences were found among cultivars for all analyzed traits. The highest head weight was recorded in the cultivar Genezis, while the lowest was in Nansen. Head height ranged from 10.25 cm (Genezis) to 12.05 cm (Nansen). Vitamin C content varied between 18.88 mg/100 g (Genezis) and 23.55 mg/100 g (Nansen). The highest nitrate accumulation was observed in Majska kraljica, and the lowest in Nansen, with ammonium nitrate fertilization resulting in the highest average nitrate content. The interaction between cultivar and fertilizer type significantly influenced the measured traits, suggesting that each cult ivar responds differently to nitrogen fertilization. These findings underscore the importance of selecting appropriate nitrogen fertilizers and cultivars to optimize yield, nutritional quality, and food safety in lettuce production.
Ključne riječi
ammonium sulfate; ammonium nitrate; urea; head weight; nitrate content
Hrčak ID:
346060
URI
Datum izdavanja:
7.4.2026.
Posjeta: 0 *