Influence of Organic Fertilizers on Onion Quality

Petrović, Bojana; Pokluda, Robert

doi:10.15244/pjoes/99909

Cited by 6 publications

(4 citation statements)

References 12 publications

(13 reference statements)

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“…The carotenoids determination was achieved according to the HOLM methodology [15]. The microwave extraction assay (Start E, Osterode am Harz, Germany) was detected by a Spectrum spectrophotometer at a wavelength of 440 nm (754 PC, Shanghai, China).…”

Section: Carotenoids Determinationmentioning

confidence: 99%

Nutritional Values of Onion Bulbs with Some Essential Structural Parameters for Packaging Process

et al. 2021

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Onions belong to the Allium genus that has been frequently used for human diet and the traditional medication due to the bioactive compounds. The main nutritional values, vitamins, and amino acid compositions of onion bulbs (Yellow, Red, Green, Leek, and Baby onions) with some essential structural parameters for the packaging process were investigated. Physical and structural parameters with frictions were applied for the packaging process. The results reported that moisture content was the main component of onion bulbs (88.65%). Besides, they were rich in proteins (9.22–13.21 g/100 g infresh weight) (FW). Results reported that Red and Yellow varieties established the largest vitamin C and carotenoids contents (45.07 mg/100 g−1 FW) and (1.44 µg/mL FW), respectively. The major amino acid was arginine which was highly found in Green variety (17.02 mg/g FW) and a relatively high amount of glutamic and aspartic acids as (9.88–14.89 mg/g FW) and (4.93–10.55 mg/g FW), respectively. Yellow variety established the largest width, thickness, surface area, aspect ratio, and sphericity. The highest static and kinetic frictions were established on steel (0.14–0.52) and (0.75–0.96), respectively. This study presents the nutritional evidence of onion varieties for the human diet besides the horticultural processing for packaging quality improvement.

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Section: Carotenoids Determinationmentioning

confidence: 99%

Nutritional Values of Onion Bulbs with Some Essential Structural Parameters for Packaging Process

et al. 2021

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“…Onion ( Allium cepa L.), being a bulbous vegetable, responds well to organic fertilizers addition. According to Gadelrab and Elamin [ 7 ] and Petrovic and Pokluda [ 8 ], organic fertilizers were more effective in obtaining a greater yield and quality of onions; these fertilizers improved the chemical and physical quality of onions. Fertilizers based on organic matter mixed with plant growth-promoting microorganisms, e.g.…”

Section: Introductionmentioning

confidence: 99%

Assessment of beneficial fungal microorganism’s bio-efficacy in stimulating morphological and physiological parameters of Allium cepa plants grown in soil amended with fish wastes

Abdelhameed

Metwally

2022

BMC Plant Biol

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Background The increase in the human consumption of fish results in the production of organic fish wastes (FW). For enhanced soil fertility and plant growth at a lower cost and without the negative impacts of chemical fertilizers, these wastes could be employed as a valuable organic fertilizer. To determine the synergistic bio-efficacy of Trichoderma sp. and arbuscular mycorrhizal (AM) fungi in stimulating the morphological and physiological characteristics of FW-fertilized Alium cepa, as well as to investigate their involvement in boosting soil fertility, the current study was carried out. Overall, eight treatments were applied as follows: AM, Trichoderma sp., AM + Trichoderma sp., FW, AM + FW, Trichoderma sp. + FW, AM + Trichoderma sp. + FW, and control. Growth and physiological assessments of onion plants were taken after 8 weeks from FW application. Results Our results showed that FW application combined with AM fungi and Trichoderma sp. inoculations increased aggregate stability of the soil (glomalin content) and soil chitinase activity. Moreover, using the bio-inoculations along with FW amendments significantly (p < 0.05) improved the photosynthetic pigments, protein, carbohydrates, and nutrients content of onion plants. It's interesting to note that the triple interaction of AM + Trichoderma sp. + FW led to the greatest increase in plant height, root length, number of leaves, and leaf area as well as total fresh and dry weights of shoots and roots. Besides, AM fungal colonization was at its highest percentage with Trichoderma sp. inoculation, although this percentage decreased with FW addition. Conclusion We concluded that the combined treatments of AM fungi and Trichoderma sp. along with FW application to the soil can be proposed as a successful strategy for plant performance in nutrient-deficient soils as both fungal inoculants are capable of degrading these wastes and converting them into manure suitable for farming so plants can uptake the minerals effortlessly.

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“…Positive results were also obtained by comparing organic pumpkins with those of Nmax, with <20% less yield and >40% lower N 2 O emissions. Since in Europe the share of organic farming is intended to increase by 25% by 2030, shifting from mineral N application to organic cropping systems not only reduces emissions at a rather low yield loss but also positively affects the physiology of the crops, for example, the content of vitamin C, antioxidants, and carotenoids, improving onion bulb quality (Petrovic & Pokluda, 2020). Moreover, reducing the agri-environmental impact of food production requires reforming agricultural measures that have many constraints as discussed above.…”

Section: Crop-specific N 2 O Emissions and Trade-off In Yieldsmentioning

confidence: 99%

Policy measures effectively reduce soil nitrous oxide emissions with minor trade‐offs in crop yield

Foldal,

Kittinger,

Haas

et al. 2024

European J Soil Science

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Nitrous oxide (N2O) emissions are closely linked to agricultural fertilisation. European and national policy incentives have been set to reduce greenhouse gas (GHG) emissions; however, only a few evaluations have been conducted. Avoiding such emissions is an important climate change mitigation measure, but it is still uncertain which management measures over a long‐term, best out‐balance crop yield and GHG balances in agricultural systems. We here used the process‐based LandscapeDNDC model to simulate N2O emissions and trade‐offs in yield and soil nitrogen budget for four alternative arable cropping systems in three Austrian agricultural production zones belonging to different climatic regions. We evaluated statistical data on crop rotations and management practices, predominant soil types, and 10‐year daily weather conditions for four cropping systems: (1) conventional farming receiving the maximum allowed nitrogen fertilisation rate (Nmax), (2) conventional farming receiving 15% less fertiliser, (3) conventional farming receiving 25% less fertiliser, and (4) organic farming. Our results showed that soil N2O emissions could be best reduced in wet, high‐yield regions. Reducing nitrogen fertilisation by 15% and 25% mitigated N2O emissions by, on average, 22% and 39%, respectively, while the yield was reduced by 5% and 9%, respectively. In comparison, the same crops grown in the organic cropping system released 60% less N2O, but yield declined on average by 23%. Corn, winter barley, and vegetables showed the highest N2O reduction potential under reduced fertiliser input in conventional farming. In addition to N2O emissions, reduced fertilisation substantially decreased other nitrogen losses into the water and atmosphere. Generally, the soils under all cropping systems maintained a positive mean nitrogen budget. Our results suggest a significant emission reduction potential in certain production zones which, however, were accompanied by yield reductions. Knowledge of the emission patterns from cropping systems under different environmental conditions is essential to set the appropriate measures. In addition, region‐specific measures to reduce soil N2O emissions have to be in line with farmers' interests in order to facilitate the successful implementation of targeted nitrogen management.

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Influence of Organic Fertilizers on Onion Quality

Cited by 6 publications

References 12 publications

Nutritional Values of Onion Bulbs with Some Essential Structural Parameters for Packaging Process

Nutritional Values of Onion Bulbs with Some Essential Structural Parameters for Packaging Process

Assessment of beneficial fungal microorganism’s bio-efficacy in stimulating morphological and physiological parameters of Allium cepa plants grown in soil amended with fish wastes

Policy measures effectively reduce soil nitrous oxide emissions with minor trade‐offs in crop yield

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