Published in Scientific Papers. Series B, Horticulture, Vol. LXVII, Issue 2
Written by Ailin MOLOȘAG, Violeta Alexandra ION, Oana Cristina PÂRVULESCU, Aurora DOBRIN, Oana-Crina BUJOR, Andrei MOȚ, Viorica LAGUNOVSCHI-LUCHIAN
To address the latest environmental and pollution challenges, as well as the growing need for food due to a progressively expanding population, this study proposes an alternative approach to increase food production by testing residual materials from the blue value chain for their potential use in farming and agriculture. For this purpose, the experimental framework involved establishing a greenhouse potted lettuce crop with the curly variety 'Simona'. We considered four experimental variants, two of which involved organic fertilization treatments using fish residues, i.e., cod bone powder (F ) and common ling bone powder (F2), one with mineral fertilizer (F3), and a control (C). The experimental monitoring period was set from November 4, 2022, to January 4, 2023. The lettuce crop was evaluated for physiological and chemical characteristics. Fish-based fertilizers showed results similar to those of the variant with mineral fertilizer, but superior to the control variant. Consequently, fish-derived organic fertilizers could be an effective alternative to mineral fertilizers for greenhouse-grown lettuce.
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