Biochar, wood ash and humic substances mitigating trace elements stress in contaminated sandy loam soil: Evidence from an integrative approach

Pukalchik, Mariia; Mercl, Filip; Терехова, В. А.; Tlustoš, Pavel

doi:10.1016/j.chemosphere.2018.03.181

Cited by 48 publications

(30 citation statements)

References 59 publications

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“…The preceding authors proposed that HPs could mitigate and delay the disruption of ion-regulatory mechanisms (e.g., plasma Na + ), contributing to reduced physiological stress. In a recent study, 0.1 and 1% of HPs successfully promoted the E. fetida survival rate and cocoon production in a 60 day greenhouse experiment (Pukalchik et al, 2018).…”

Section: Effects On Soil Invertebratesmentioning

confidence: 95%

Outlining the Potential Role of Humic Products in Modifying Biological Properties of the Soil—A Review

Pukalchik

Kydralieva

Yakimenko

et al. 2019

Front. Environ. Sci.

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Section: Effects On Soil Invertebratesmentioning

confidence: 95%

Outlining the Potential Role of Humic Products in Modifying Biological Properties of the Soil—A Review

Pukalchik

Kydralieva

Yakimenko

et al. 2019

Front. Environ. Sci.

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“…Hence, there is the possibility that the exogenous N provided by fertilizers and other important elements in the soil could be immobilized and trapped by reacting with the wood ash, as it usually has high soluble concentrations of carbonates and phosphates. Recent evidence also shows that wood ash application decreased the activity of dehydrogenase, acid phosphatase, and β-glucosidase, as well as fluorescein diacetate (FDA) activity, indicating reduced soil microbial activity (Pukalchik et al, 2018). Furthermore, wood ash application may strongly influence the soil texture, aeration, and water FIGURE 3 | Field trial, harvest time: straw DW (stem + leaves + cobs), grain DW, harvest index (HI), and starch content in kernels of two maize hybrids (D24 and P1921) grown under ash-amended soil (Ash, 0.1% w/w) vs. untreated controls (Unt; mean ± SE, n = 3).…”

Section: Soil Characteristics and Nutrient Availabilitymentioning

confidence: 99%

Effects of Soil Amendment With Wood Ash on Transpiration, Growth, and Metal Uptake in Two Contrasting Maize (Zea mays L.) Hybrids to Drought Tolerance

et al. 2021

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Wood ash as a soil amendment has gained wide spread acceptance in the recent years as a sustainable alternative to chemical fertilizers, although information regarding the effects of its application on maize growth and yield in the context of climate change and increasing drought severity is lacking till date. In the present study, field and pot trials were carried out at the experimental farm of the University of Padova at Legnaro (NE Italy) in a silty-loam soil in order to investigate the effects of soil amendment with wood ash (0.1% w/w, incorporated into the 0.2-m top soil) on the bioavailability of mineral elements and their uptake by maize. Characteristics analyzed included plant growth, leaf transpiration dynamics, and productivity in two contrasting hybrids, P1921 (drought sensitive) and D24 (drought tolerant). Wood ash contained relevant amounts of Ca, K, Mg, P, and S, and hazardous levels of Zn (732 mg kg−1), Pb (527 mg kg−1), and Cu (129 mg kg−1), although no significant changes in total soil element concentration, pH, and electrical conductivity were detected in open field. Ash application led to a general increasing trend of diethylene triamine penta-acetic acid (DTPA)-extractable of various elements, bringing to higher grain P in D24 hybrid, and Zn and Ni reductions in P1921 hybrid. Here, the results demonstrated that ash amendment enhanced shoot growth and the number of leaves, causing a reduction of harvest index, without affecting grain yield in both hybrids. The most relevant result was a retarded inhibition of leaf transpiration under artificial progressive water stress, particularly in the drought-tolerant D24 hybrid that could be sustained by root growth improvements in the field across the whole 0–1.5 m soil profile in D24, and in the amended top soil in P1921. It is concluded that woody ash can be profitably exploited in maize fertilization for enhancing shoot and root growth and drought tolerance, thanks to morphological and physiological improvements, although major benefits are expected to be achieved in drought tolerant hybrids. Attention should be payed when using ash derived by metal contaminated wood stocks to avoid any health risk in food uses.

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“…However, these authors emphasised that sensitivity to Cd, Zn, Pb, and Cu may be affected by the content of SOM and granulometric composition of the soil. The above information clearly shows that excessive contents of Cd, Cu, Zn, Pb may interfere with soil homeostasis and disturb the mechanisms responsible for proper biochemical changes at the cellular level [1,6,[50][51][52][53].…”

Section: Dehydrogenase Activitymentioning

confidence: 99%

Effect of Coapplication of Biochar and Nutrients on Microbiocenotic Composition, Dehydrogenase Activity Index and Chemical Properties of Sandy Soil

Mierzwa–Hersztek

Wolny-Koładka

Gondek

et al. 2019

Waste Biomass Valor

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Biochar improves soil physical, chemical and biological properties. However, there is a very limited number of studies comparing the effect of various doses of biochar and wheat straw with nutrients on microbiocenotic composition of soil and their connection with selected biochemical and chemical parameters of soil. The aim of this study was to determine the effect of the addition to the soil of wheat straw (WS) and wheat straw biochar (WSB) (300 °C) at 0.2%, 0.5%, 1%, and 2% doses and the addition of nutrients (MF) on microbial community composition (bacteria, fungi, actinobacteria, Azotobacter spp., ammonifiers, nitrifiers, denitrifiers, C. pasteurianum), dehydrogenase activity index, carbon and nitrogen fractions contents and the content of water soluble Cu, Cd, Zn, and Pb. It was demonstrated that coapplication of WS and WSB with MF at 1% and 2% doses increased carbon and nitrogen contents in soil and, in particular, their water soluble fractions (DOC and DON). The synergistic effect of biochar and MF contributed to the increase in the population of soil microorganisms. Dehydrogenase activity index in treatments with the addition of WS, WSB and MF was 1.6-4 times higher compared to the control. The content of heavy metals significantly (p ≤ 0.05) affected dehydrogenase activity and the number of nitrifiers and ammonifiers. It was demonstrated that the content of C and N measured for soil microbial biomass in treatments amended with biochar and MF was much greater than in control treatment and MF. However, our studies suggest that the microorganisms' response to the addition of biochar with nutrients increased the number and intensified the activity of soil microorganisms.

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Biochar, wood ash and humic substances mitigating trace elements stress in contaminated sandy loam soil: Evidence from an integrative approach

Cited by 48 publications

References 59 publications

Outlining the Potential Role of Humic Products in Modifying Biological Properties of the Soil—A Review

Outlining the Potential Role of Humic Products in Modifying Biological Properties of the Soil—A Review

Effects of Soil Amendment With Wood Ash on Transpiration, Growth, and Metal Uptake in Two Contrasting Maize (Zea mays L.) Hybrids to Drought Tolerance

Effect of Coapplication of Biochar and Nutrients on Microbiocenotic Composition, Dehydrogenase Activity Index and Chemical Properties of Sandy Soil

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