Fulvic acid displaces manure to improve soil in vegetable greenhouse

Yang, Shaochen; Cong, Lei; Wang, Xuefen; Zhang, Zhifen; Zhang, Zhonglan

doi:10.1080/09064710.2014.923500

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…FAs have also been studied for their beneficial effect on soils and crops. Some researchers have published their results showing a great potential of FAs as a plant growth stimulator, such as on rice and radish (Khang, 2011), vegetables (Yang et al, 2014), safflower (Moradi et al, 2017), coffee seedlings (Justi et al, 2019), tobacco (Moradi et al, 2019) and wheat (Sootahar et al, 2020). Also, it was reported by Yang et al (2013) that the application of FAs on soils significantly improved soil-P availability.…”

Section: Introductionmentioning

confidence: 99%

Fulvic acid – a small but powerful natural substance

Goenadi¹

2021

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Humic substances are defined as the result of the decomposition of any organic matter, and they consist mainly of humin, humic, and fulvic acids. Compared to humin, humic acids and fulvic acid (FA) are the most explored compounds. However, FAs are less studied than humic acids because of the usually small residual quantities. Considering that its potential for bioactivity is stronger than that of humic acids, the current review was performed to evaluate the effectiveness of FA application for crops and soils and its potential as an immuno-modulator for humans. The wide application of FA is challenged by two main factors affecting the quality and the effectiveness, i.e., the type of raw material and extraction method. Lignite, low-energy coal, is the most common material for FA production besides bog, peat, and compost. Fulvic acid extraction is done through several methods, i.e., hydrogen peroxide (H2O2), alkaline (NaOH/KOH), and/or water. The latest modified method shows that the combination of H2O2 with microwave power can recover a considerable amount of FA. However, it is still difficult to apply this method for industrial scale. Due to highly specified characteristics, FA showed a great potential to improve crop performances and soil health, making it strategic for supporting sustainable agriculture in the future through biotic and abiotic stress alleviations and sustainable yield achievement, including various plantation crops and biotechnological approach. For medicinal purposes, some studies have shown highly promising results, especially as an immuno-modulator and in combating neurodegenerative disorders as well as for cancer therapy and health food fortification, which might be in line with the new paradigm so-called One Health approach. The future market of FA is also estimated to grow in a very attractive economic value. However, as data are still limited, the wide range of potential use should encourage concerted and wide research and product development efforts to achieve sustainable agriculture and human health.

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Section: Introductionmentioning

confidence: 99%

Fulvic acid – a small but powerful natural substance

Goenadi¹

2021

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“…FA possesses high ion exchange and hydrolysis capacity, and it modifies the soil structure by binding to clay, silt, and sand due to its colloidal characteristics. Otherwise, FA can function as a plant hormone, protects plants against abiotic stress conditions, and increases soil fertility (Fang et al, 2016;Yang et al, 2014). However, it is less stable in soil due to its greater exposure to microbial degradation (Dinler et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Biochar and Fulvic Acid to Activate Soil Fertility for Achieving Agro-ecology Benefits in a Newly Reclaimed Coastal Wetland of China

Sun

Chen

2019

Emir J Food Agric

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Reclamation of coastal tidal flat lands for obtaining more lands has lasting for many years in China. More attention should be paid on soil and water pollution for protecting coastal ecosystem during the period of saline soil amelioration. A field experiment was conducted for two years in eastern China to investigate the effects of different rates of biochar (BC) (at 0, 7.5, and 30 t ha-1) and/or fulvic acid (FA) (at 0, 0.075 t ha-1) with/without nitrogen (N) fertilizer on the soil physical, chemical, and nutritional properties, as well as crop yield, with a maize-barley rotation. Results showed that N application caused soil compaction, and BC+FA treatments decreased soil bulk density (ranging from 1.22 to 1.28 g cm3) and improved water retention under the condition. Extreme precipitation accelerated soil de-salinization during the crop cultivation (soil EC decreased to the low value ranging from 127 to 141 μS cm-1, after maize harveseted). N addition improved grain yield of maize (increased by 105% under BC30+FA+N, compared with the CK treatment), but there was no significant difference between the N and no-N added treatments. However, the grain yield and straw weight of barley in with-N treatments were twice as much as those of the no-N treatments. The soil nutrion contents (total nitrogen and phosphorus content) after maize and barley crops were higher, under no-N treatments compared to the with-N treatments. A lower pH (8,78) and higher Ca2+ + Mg2+ content (0.24 ~ 0.26 g kg-1) existed in BC30+FA treated plots after maize and barley crops. Replacement of nitrogen fertilizer by BC and FA in the coastal saline soil was feasible in a short time. Therefore, nitrogen fertilizer usage should be regulated for protecting the coastal ecology system, and also achieving agricultural benefits.

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Evaluation of the simplified method of fulvic fractions extraction from peat and lignite

Huculak-Mączka,

Kaniewski,

Marecka

et al. 2023

J Therm Anal Calorim

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Due to numerous and valuable properties of humic substances, preparations produced from alternative organic materials have been widely used in agriculture, bioremediations, dietary supplements and others. In addition to well-known humic acids, fulvic acids (FA) are a valuable product with a wide range of applications. The aim of performed examinations was to assess the thermal and physicochemical properties of FA obtained from lignite and peat using simplified conventional and ultrasound-assisted methods. DSC coupled with TG and MS, 13C NMR, FTIR spectroscopy and differential pulse voltammetry has been used to examine extracted FA. Depending on the source of FA and the extraction method applied, their structure and properties differ. Obtained FA fractions varied for both tested raw materials in terms of analyzed carbon structures, and the highest discrepancy was observed for carbonyl groups (20.2 pp) in fractions obtained by conventional extraction. The use of the ultrasound-assisted extraction (UAE), in comparison with the traditional method, lowered the ratio of carbon in carbonyl groups by 8.4 pp and increased the ratio of aromatic and aliphatic carbon by 3.5 and 4.9 pp, respectively, for FA obtained from lignite. As for FA obtained from peat, the UAE effect appeared to be less impactful in terms of structural changes. Thermal analysis showed that the products were thermally stable up to 100 °C, and the simplified extraction resulted in the creation of mineral-organic structures that decomposed at unusually high temperatures. Simplifying the extraction process, by excluding inorganic purification and protonation of obtained FA fractions, greatly affects product quality and limits its possible application.

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Fulvic acid displaces manure to improve soil in vegetable greenhouse

Cited by 3 publications

References 14 publications

Fulvic acid – a small but powerful natural substance

Fulvic acid – a small but powerful natural substance

Biochar and Fulvic Acid to Activate Soil Fertility for Achieving Agro-ecology Benefits in a Newly Reclaimed Coastal Wetland of China

Evaluation of the simplified method of fulvic fractions extraction from peat and lignite

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