Comparative effects of lignite-derived humic acids and FYM on soil properties and vegetable yield

Ciarkowska, Krystyna; Sołek-Podwika, K.; Filipek-Mazur, B.; Tabak, Monika

doi:10.1016/j.geoderma.2017.05.022

Cited by 58 publications

(30 citation statements)

References 14 publications

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“…Although amending soils with HS may be a promising strategy for mitigating water-limited stress, their effects on different drought levels are still unknown and need to be tested for practical directions, especially the evaluation of cross-talk between plant-soil biota growth and HS application. Ciarkowska et al (2017) illustrated that the soil texture with different fertile capacity distinguished the effects of HS on both soil environmental changes and final plant growth. Sandy and clay are the most representative soils in agricultural production areas in southwest Texas (Sharma et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Lignite‐derived humic substances modulate pepper and soil‐biota growth under water deficit stress

Qin¹,

Leskovar²

2018

J. Plant Nutr. Soil Sci.

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Organic matter‐derived soil amendments containing humic substances (HS) have a functional role to improve plant growth and soil quality, but their response to water deficit stress is less reported, particularly in vegetable crops. This study assessed the impact of lignite‐derived HS on biota growth and evaluated their potential mitigative effects under water deficit stress in growth chamber and greenhouse environments. Bell pepper (Capsicum annuum L. cv. Revolution) plants were grown in sandy and clay soil previously mixed with lignite‐derived HS and subjected to four irrigation levels (20%, 40%, 60%, and 80%) based on soil water‐holding capacity. Plant growth traits, soil chemical properties, and microbial populations were measured and analyzed. HS increased plant root development and soil bacteria population in moderate and no stress conditions (60%, 80%). Physiologically, HS rapidly decreased leaf stomatal conductance and transpiration after imposing severe or mild stress (20%, 40%). The results indicate that HS transiently ameliorated plants exposed to water stress by reducing moisture loss. In addition, due to their capacity to improve plant root growth, soil nutrient cycling and microbial activity, application of HS might have long‐term benefits in agricultural systems.

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Section: Introductionmentioning

confidence: 99%

“…Ciarkowska et al () illustrated that the soil texture with different fertile capacity distinguished the effects of HS on both soil environmental changes and final plant growth. Sandy and clay are the most representative soils in agricultural production areas in southwest Texas ( Sharma et al, ).…”

Section: Introductionmentioning

confidence: 99%

Lignite‐derived humic substances modulate pepper and soil‐biota growth under water deficit stress

Qin¹,

Leskovar²

2018

J. Plant Nutr. Soil Sci.

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“…To compare, in compost average amount of humic substances, which are responsible for soil enrichment, reaches only 182 mg/g (Gusiatin and Kulikowska 2012 ). Recently, lignite derived humic acids were reported as an excellent fertilizer, that increase vegetable and wheat yield and soil quality index (Ahmad et al 2015 ; Ciarkowska et al 2017 ). Moreover, our results also supports these studies, showing that liquefied coal stimulates germination of seed and growth of plant roots (data not published yet).…”

Section: Discussionmentioning

confidence: 99%

Improvement of efficiency of brown coal biosolubilization by novel recombinant Fusarium oxysporum laccase

Kwiatos

Jędrzejczak-Krzepkowska

Strzelecki

et al. 2018

AMB Expr

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Clean coal technologies (e.g. coal biosolubilization) are of essential value, especially in Europe, where coal is the national wealth and other energy sources like crude oil are not available. Fusarium oxysporum LOCK 1134, the strain isolated from brown coal, efficiently biosolubilizes lignite. The obtained liquefied products contain 50% less sulfur and over 99% less mercury than the crude coal. Moreover, the liquefied coal can be modified further by laccase. In this study F. oxysporum laccase was expressed in Pichia pastoris for the first time and was assessed as an additional agent for coal degradation. The novel laccase contributes to humic and fulvic acids release from liquefied coal due to introduction of oxygen into coal structure. The effect is increased when a natural redox mediator, sinapic acid, is present in the reaction mixture—up to 30% and 80% respectively. Humic acids obtained by biological process are environmentally friendly fertilizers that may have stimulating effects on crop growth.Electronic supplementary materialThe online version of this article (10.1186/s13568-018-0669-1) contains supplementary material, which is available to authorized users.

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“…Most published studies of HS show wide range of benefits including a growth of beneficial soil microbes, improvements in soil structure including water retention capacity as well as a soil porosity, aeration, compaction, and adhesion (Piccolo et al 1993;Nardi et al 2016;Ouni et al 2014;Ciarkowska et al 2017). Another experiment has shown numerous benefits of HS application to plants including root respiration, enzyme activity, and resistance to abiotic stress like salinity and extreme pH.…”

Section: Introductionmentioning

confidence: 99%

“…Humic substances (HS) are natural organic compounds which are sourced not only from soil but also from compost, manure, peat and, e.g., coals such as lignite and leonardite (Canellas et al 2015;Fuentes et al 2016;Yakimenko et al 2016;Ciarkowska et al 2017). Increased production and continuous expansion of the range of such products have been one of the main trends on fertilizer market.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the possibilities of using humic acids obtained from lignite in the production of commercial fertilizers

Huculak-Mączka

Hoffmann

2018

J Soils Sediments

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Purpose Technological progress and high market demand contributed to a significant interest in the production of fertilizers based on humic acids. The aim of this study was to evaluate the possibilities of using humic acids obtained from lignite in the production of new commercial products. For this purpose, it is necessary to determine the quality standard requirements for such material. Properties of humic acids depend on source of origin as well as method of its extraction. Materials and methods The humic acids were extracted from polish deposit of lignite-Sieniawa Lubuska by alkaline extraction using for this purpose six kinds of extractants: 0.1 M NaOH and 0.25 M NaOH, 0.1 M KOH and 0.25 M KOH, and 0.1 M Na 4 P 2 O 7 and 0.25 M Na 4 P 2 O 7 . The humic samples were used in solid powder form and characterized by UV-Vis spectroscopy, 13 C NMR spectroscopy, fluorescence spectroscopy, and thermal analysis. Results and discussion The determining factor influencing a degree of humic acids extraction from lignite and their structure is type of extractant. The largest efficiency of extraction (about 50%) was obtained with the use of NaOH solutions. All examined humic acids were generally characterized by simple and heterogeneous molecularly structure with low molecular weight and low aromatic polycondensation. Therefore, it can be concluded that humic acids extracted with NaOH and KOH solutions are less condensed than those extracted with Na 4 P 2 O 7 solutions. It can suggest that humic acids obtained from lignite using solutions of Na 4 P 2 O 7 are characterized by a low transformation degree and greater amount of carboxyl groups. Conclusions Low rank coal can be successfully used in agriculture as a rich source of humic acids. Reagent used in their extraction, apart from high efficiency should have a neutral impact on their structure. Studies on the physicochemical properties of humic acids can be helpful in predicting behaviors of such fertilizer components in the environment and in inventing new products taking the principles of sustainable development into consideration.

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Comparative effects of lignite-derived humic acids and FYM on soil properties and vegetable yield

Cited by 58 publications

References 14 publications

Lignite‐derived humic substances modulate pepper and soil‐biota growth under water deficit stress

Lignite‐derived humic substances modulate pepper and soil‐biota growth under water deficit stress

Improvement of efficiency of brown coal biosolubilization by novel recombinant Fusarium oxysporum laccase

Evaluation of the possibilities of using humic acids obtained from lignite in the production of commercial fertilizers

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