The Effect of Different Fertilization Regimes on Yield, Selected Nutrients, and Bioactive Compounds Profiles of Onion

Kazimierczak, Renata; Średnicka-Tober, Dominika; Barański, Marcin; Hallmann, Ewelina; Góralska-Walczak, Rita; Kopczyńska, Klaudia; Rembiałkowska, Ewa; Górski, Jan; Leifert, Carlo; Rempelos, Leonidas; Kaniszewski, S.

doi:10.3390/agronomy11050883

Cited by 22 publications

(15 citation statements)

References 53 publications

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“…Additionally, in 2022, higher levels of humus, N, and P were measured compared to the soil in 2021 (Table 1), further explaining the significantly higher yield in 2022. The strong impact of the year of harvest was also noted by Kazimierczak et al [69], where onion yield in 2012 was 75.8 t/ha, and in the following year, 2013, it decreased to 38.7 t/ha.…”

Section: Discussionsupporting

confidence: 62%

Biostimulants Improve Bulb Yield, Concomitantly Affecting the Total Phenolics, Flavonoids, and Antioxidant Capacity of Onion (Allium cepa)

Vojnović,

Maksimović,

Tepić Horecki

et al. 2024

Horticulturae

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In the pursuit of maximizing onion (Allium cepa) yield and quality, farmers often face the challenges of unfavorable ecological conditions and inadequate agronomic practices. Therefore, our two-year study investigated the effects of biostimulants (BTs) of plant growth on bulb yield and the bioactive compounds of directly seeded onion. Four treatments were applied: control (C), seaweed extracts (BT1), humic and fulvic acid (BT2), and Trichoderma spp. (BT3). The results demonstrated a significant increase in bulb yield with BT1 (↑ 18.7%), BT2 (↑ 18.0%), and BT3 (↑ 24.3%). Intriguingly, all BTs markedly reduced phenolic content across both years. Additionally, BT1 and BT3 elevated flavonoid levels (↑ 16.8% and ↑ 16.7%, respectively), while BT2 decreased them (↓ 24.2%). Notably, in 2021, DPPH, FRAP, and ABTS tests indicated a significant reduction in antioxidant capacity compared to C. Our study underscores the important role of BTs in enhancing yield, influencing secondary metabolites and contributing to environmental sustainability in onion cultivation.

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Section: Discussionsupporting

confidence: 62%

Biostimulants Improve Bulb Yield, Concomitantly Affecting the Total Phenolics, Flavonoids, and Antioxidant Capacity of Onion (Allium cepa)

Vojnović,

Maksimović,

Tepić Horecki

et al. 2024

Horticulturae

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“…Sulfoxide compounds are responsible for the flavor and aroma of onions [31]. Different fertilization regimes have previously been shown to influence the onion flavor profile [32]. As an example, Coolong and Randle [14] demonstrated that N availability directly influenced the levels of S-methyl-L-cysteine sulfoxide, a precursor of pyruvic acid in freshly cut short-day onions, which authors suggested might affect flavor quality in the bulb.…”

Section: Discussionmentioning

confidence: 99%

Fertilizer Nitrogen Application for Short-Day Onion Production: From Field to Table

et al. 2022

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Long growing seasons, relatively shallow root system, coarse textured soils, and variability of the subtropical environmental conditions of the southeastern U.S. create challenges for nitrogen (N) fertilizer management of short-day onions. The objectives of this study were: (i) to evaluate the impact of fertilizer N rates on the yield and bulb quality of three short-day onion cultivars grown under the subtropical conditions of the southeastern U.S., and (ii) to assess the impact of fertilizer N rate for short-day onions on consumers’ preference. Field experiments were conducted in 2019 and 2020 at the Vidalia Onion and Vegetable Research Center at the University of Georgia located in Lyons, GA, in which a two factorial experimental design of five fertilizer N rates (84, 101, 117, 134, and 151 kg of N ha−1) and three short-day onion cultivars (Sweet Agent, Vidora, and Quick Start) was evaluated in a randomized complete block design. During both growing seasons, rainfall events directly impacted soil mineral N content. While soil mineral N availability increased with fertilizer N application, there was no significant difference among fertilizer N rate treatments due to rainfall distribution in both years studied, except at bulb initiation when the application of 117 kg of N ha−1 sustained soil mineral N availability that maximized with the application of 128 kg of N ha−1. Onion total yield averaged 37,365 kg ha−1 in 2019 and 34,699 kg ha−1 in 2020. In general, colossal, jumbo, and medium-sized onions represented 7%, 76%, and 17% of total yield, respectively. Jumbo-sized onions are of most interest to growers due to their high value, and the yield of jumbo-sized onions was maximized with 158 kg of N ha−1 in 2019 and with 138 kg of N ha−1 in 2020. Bulb bacterial rots were not impacted by fertilizer N rate treatments. Contrarily, bulb gallic acid (GAE) linearly increased and pyruvic acid quadratically increased with the application of fertilizer N rate. Ultimately, a taste panel indicated that sensory characteristics were also not affected by different rates. Overall, a fertilizer N rate application of 117 to 134 kg of N ha−1 could sustain soil mineral N availability without impacting yield; however, an investigation on the timing of application should be conducted to determine a fertilizer N strategy that will promote optimum yield, bulb quality, flavor, and consumer acceptability.

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“…The crop doesn't require a lot of water compared to other arable crops but has high nutrient demand particularly nitrogen, phosphorus and potassium. According to research carried in several parts of the world by Gateri et al (2018); Gererufael et al (2020); Kazimierczak et al (2021); Yoldas et al (2011) adequate levels of nitrogen (N), phosphorous (P), potassium (K) significantly increases seed survival, plant height, number of leaves, leaf length, average bulb weight, bulb diameter, total and marketable yield as well as quality. The crop Ranks as the third most important vegetable in Kenya after brassicas and tomatoes (MOA, 2004).…”

Section: Introductionmentioning

confidence: 99%

Onion (Allium cepa L.) Performance as Influenced by Manure and Fertilizer in Titanium Mined Soils

Muindi¹,

Wamukota²,

Mulinge³

et al. 2022

SAR

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Mining is an important economic activity that promotes income generation, job creation, and industrialization globally. In spite its economic importance, it is classified as land degradation form that disrupts natural ecosystem through loss of biota and soil health. Paucity of information regarding the performance of reclaimed mined soils in supporting crop production abound in Kenya. To contribute to this knowledge gap, a study was conducted at Base titanium limited -Kwale to investigate the response of performance of bulb onions (red creole onion variety) to farmyard manure and inorganic fertilizer application on post mined soils. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replicates Treatments included: inorganic fertilizer, farmyard manure, inorganic fertilizer +farmyard manure and control. Obtained data that included: soil characterization, onion growth and yield parameters was subjected to analysis of variance (ANOVA) using R packages and means separated using the Fisher’s protected least significant difference (LSD) at (P≤0.05). Results showed that the soils had low TN, exchangeable P, K, S, Bo and Cu levels. Manure+ fertilizer significantly (P≤0.05) increased plant height by 38%, bulb diameter by 44%, neck thickness by 19.5% total bulb yield by 89% and marketable yield by 88% compared to control. A significant positive relationship between manure, fertilizer, fertilizer+ manure with plant height, number of leaves, bulb diameter, neck thickness and total yield was observed indicating that manure + fertilizer can support optimal onion production in these post mined soils. Further research is however, required to ascertain production approaches that promote sustainable soil development and onion yield.

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The Effect of Different Fertilization Regimes on Yield, Selected Nutrients, and Bioactive Compounds Profiles of Onion

Cited by 22 publications

References 53 publications

Biostimulants Improve Bulb Yield, Concomitantly Affecting the Total Phenolics, Flavonoids, and Antioxidant Capacity of Onion (Allium cepa)

Biostimulants Improve Bulb Yield, Concomitantly Affecting the Total Phenolics, Flavonoids, and Antioxidant Capacity of Onion (Allium cepa)

Fertilizer Nitrogen Application for Short-Day Onion Production: From Field to Table

Onion (Allium cepa L.) Performance as Influenced by Manure and Fertilizer in Titanium Mined Soils

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