Effects of bio, mineral nitrogen fertilizer management, under humic acid foliar spraying on fruit yield and several traits of eggplant (Solanum melongena L.)

Azarpour, Ebrahim; Motamed, Mohammad Karim; Moraditochaee, Maral; Bozorgi, Hamid Reza

doi:10.5897/ajar11.1833

Cited by 9 publications

(2 citation statements)

References 15 publications

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“…In the present study, the use of fulvic acid led to an increase in K and Zn content of pistachio kernels, consistent with previous findings on eggplant [ 46 ], lettuce [ 47 ], tomato [ 45 ], and yarrow [ 34 ]. The positive impact of organic fertilizers, such as fulvic acid, on plant growth by inducing nutrient uptake has been reported in numerous studies [ 48 , 49 ].…”

Section: Discussionsupporting

confidence: 93%

Fulvic acid foliar application: a novel approach enhancing antioxidant capacity and nutritional quality of pistachio (Pistacia vera L.)

Nikoogoftar-Sedghi,

Rabiei,

Razavi

et al. 2024

BMC Plant Biol

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Background The global growth of pistachio production has prompted exploration into sustainable agricultural practices, on the application of humic substances such as fulvic acid in enhancing the quality of horticultural crops. The present study was carried out in Qom province, Iran, on 20 years old pistachio (Pistacia vera L. cv. Kaleh-Ghoochi) trees and investigated the impact of foliar spraying of fulvic acid at varying concentrations (1.5, 3, and 4.5 g L− 1) on the antioxidant and quality properties of pistachio. The different concentrations of fulvic acid were applied at two key stages: at the initiation of pistachio kernel formation (late June) and the development stage of pistachio kernel (late August), as well as at both time points. Following harvest at the horticulturally mature phase, various parameters, including total phenols, flavonoids, soluble proteins, soluble carbohydrate content, antioxidant capacity, and antioxidant enzyme activity, were assessed. Results Results indicated that foliar application of fulvic acid, particularly at 1.5 g L− 1 during both late June and August, effectively increased phenolic compounds (31.8%) and flavonoid content (24.53%). Additionally, this treatment also augmented antioxidant capacity and heightened the activity of catalase (CAT) (37.56%), ascorbate peroxidase (APX) (63.86%), and superoxide dismutase (SOD) (76.45%). Conversely, peroxidase (POX) (41.54%) activity was reduced in fulvic acid-treated nuts compared with controls. Moreover, the content of chlorophyll (45%) and carotenoids (46.7%) was enhanced using this organic fertilizer. In terms of mineral elements, the increment was observed in zinc (Zn) (58.23%) and potassium (K) (28.12%) amounts in treated nuts. Additionally, foliar application of fulvic acid led to elevated levels of soluble carbohydrates and proteins in treated nuts. Conclusions In the present study, application of fulvic acid resulted in enhancement of antioxidant activity and quality traits of pistachio nut through an increase in total phenol, flavonoids, chlorophyll, carotenoids, K, Zn, and also activity of antioxidant enzymes. Therefore, use of fulvic acid emerges as a promising strategy to enhance the quality and nutritional attributes of pistachios, contributing to sustainable agricultural practices and improved crop outcomes.

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Section: Discussionsupporting

confidence: 93%

Fulvic acid foliar application: a novel approach enhancing antioxidant capacity and nutritional quality of pistachio (Pistacia vera L.)

Nikoogoftar-Sedghi,

Rabiei,

Razavi

et al. 2024

BMC Plant Biol

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“…These results due to that humic substances had been claimed to promote plant growth and yield by increasing the permeability of cell membrane, oxygen uptake, photosynthesis, nutrient uptake, and root cell elongation. These findings are in similar with this obtained before that by Magdy et al (2011), Sahar et al, (2020 and Ibrahim et al (2013).…”

Section: Yield Of Maize Plantsupporting

confidence: 94%

Effect of Nitrogen Supply by Ammonium Humate on Maize Production Under Sandy Soil and Nitrogen-Deficient Conditions

El-Edfawy,

Mohamed,

Shehata,

2024

Menoufia Journal of Soil Science

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A field experiment was conducted during the two successive summer seasons of 2022 and 2023 under sandy soil conditions at Ismailia Agricultural Research Station of Ismailia Governorate, Egypt. This study aims to investigate the effect of mineral N fertilizer application at three rates i.e. 50, 75 and 100 % from recommended dose and application of ammonium humat at four rates of N without humat, 10, 15 and 20 g N L -1 (H 0 , H 10 , H 15 and H 20 ) along with two application methods (soil and foliar application) on the yield, yield components, chemical composition of maize plants (Zea maize L.) grown and available NPK in sandy soil. The obtained results indicated that grain and straw yields as well as content of available nutrients were affected significantly by increased levels of mineral N, rates of ammonium humat and application methods. In most cases, the highest mean values in both grain and straw yields were recorded at the treatment of 75 % mineral N * H 20 with the foliar application, which gave results equal to or better than those received 100 % mineral N solo. A similar trend was detected with respect to NPK uptake by both grain and straw yields. Also, the highest of available NPK content in the soil due to the soil application of humat. In view of the above-mentioned results, it has been concluded that the efficiency of mineral N fertilizer increased with the application of ammonium humat as which with 20 g N L -1 (foliar or soil addition) and reflected on the yield and chemical composition of maize plants and also, can be used as a partial substitute to 25 % of mineral -N fertilizer under sandy soil conditions.

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The response of Solanum melongena L. to different phosphorus levels and sowing dates

Begum

Shuaib

Khan

et al. 2019

Acta Ecologica Sinica

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Effects of bio, mineral nitrogen fertilizer management, under humic acid foliar spraying on fruit yield and several traits of eggplant (Solanum melongena L.)

Cited by 9 publications

References 15 publications

Fulvic acid foliar application: a novel approach enhancing antioxidant capacity and nutritional quality of pistachio (Pistacia vera L.)

Fulvic acid foliar application: a novel approach enhancing antioxidant capacity and nutritional quality of pistachio (Pistacia vera L.)

Effect of Nitrogen Supply by Ammonium Humate on Maize Production Under Sandy Soil and Nitrogen-Deficient Conditions

The response of Solanum melongena L. to different phosphorus levels and sowing dates

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