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The effect of different fertilization regimes on yield, selected nutrients, and bioactive compounds profiles of onion

Lookup NU author(s): Dr Leo RempelosORCiD

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).

Abstract

© 2021 by the authors. Licensee MDPI, Basel, Switzerland.Here we report the results of a three-year replicated field trial on the effects of novel cloverand alfalfa-based fertilizer products (Ekofert® K and Ekofert® L), with the input levels equivalent to 120, 180, or 240 kg N ha−1, on the yield and selected sensory and nutritional quality parameters of onion. The study showed that Ekofert fertilizer applied at all three levels produced similar or higher yields than the standard fertilization regimes used in conventional farming in all three seasons. Significant differences in onion composition profiles between fertilization treatments were detected within individual seasons; however, due to substantial interseasonal variation, no consistent differences could be detected between (i) mineral N and Ekofert fertilizer treatments, (ii) the two different Ekofert products, and (iii) contrasting Ekofert input levels. Results demonstrate that cloverand alfalfa-based pelleted organic fertilizer products are a suitable alternative for intensive organic field vegetable production.

Publication metadata

Author(s): Kazimierczak R, Srednicka-Tober D, Baranski M, Hallmann E, Goralska-Walczak R, Kopczynska K, Rembialkowska E, Gorski J, Leifert C, Rempelos L, Kaniszewski S

Publication type: Article

Publication status: Published

Journal: Agronomy

Year: 2021

Volume: 11

Issue: 5

Online publication date: 29/04/2021

Acceptance date: 27/04/2021

Date deposited: 07/06/2021

ISSN (electronic): 2073-4395

Publisher: MDPI AG

URL: https://doi.org/10.3390/agronomy11050883

DOI: 10.3390/agronomy11050883

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