Granulated biofuel ash as a sustainable source of plant nutrients

Buneviciene, Kristina; Drapanauskaitė, Donata; Mažeika, Romas; Tilvikienė, Vita; Baltrušaitis, Jonas

doi:10.1177/0734242x20948952

Cited by 17 publications

(9 citation statements)

References 69 publications

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“…Physiochemical properties of the biochar and soil were analysed by standard laboratory methods. Soil and biochar (pH) and EC analysis was analysed as a 1:5 (vol vol −1 ) soil mixture in 1 M KCl solution (Buneviciene et al, 2020) and extracted to distilled water (Yang et al, 2016). Cation exchange capacity was determined by the updated ammonium‐acetate method (Gaskin et al, 2008).…”

Section: Methodsmentioning

confidence: 99%

Pig manure digestate‐derived biochar for soil management and crop cultivation in heavy metals contaminated soil

Ayaz

Stulpinaitė

Feizienė

et al. 2021

Soil Use and Management

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Management of heavy metal‐contaminated soil under drought and other harsh hydrological conditions is critical for protecting soil ecosystem services. In this study, we examined the effect of pig manure digestate‐derived biochar as a soil amendment (15 t ha−1) with N fertilizer (180 kg ha−1) on soil and plant heavy metal levels and nutrient availability under various moisture regimes (optimal moisture ~15%, drought condition ≤5%, and flooded condition ≥35% wt.). It was observed that biochar applications significantly decreased heavy metals in the spring wheat plants, lowering Cr by 90%, Ni by 50%, Cd by 9% and Pb by 34% compared to non‐biochar (control) treatments. However, the pig digestate‐derived biochar increased heavy metals in soil under all moisture regimes, increasing soil Cr by 21%, Ni by 43%, Cu by 55%, Zn by 70%, and Pb by 12%. The availability of macroelements also increased with the biochar applications under the optimum moisture regimes in both soil and plants, increasing Mg2+ by 11%, P by 4%, K+ by 50%, and Ca2+ by 56% in the soil, and Mg2+ by 13%, P by 69%, K+ by 29, and Ca2+ by 39% in plants. Biochar addition also improved chlorophyll fluorescence (CF) levels in the crop for the entire season (12th to 62nd day) and the aboveground crop biomass and dry matter contents both increased. Consequently, the use of pig manure digestate‐derived biochar with N fertilizer under normal moisture conditions was able to reduce heavy metal availability to plants and thus could be used in contaminated soils to maintain better crop growth and development.

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Section: Methodsmentioning

confidence: 99%

Pig manure digestate‐derived biochar for soil management and crop cultivation in heavy metals contaminated soil

Ayaz

Stulpinaitė

Feizienė

et al. 2021

Soil Use and Management

Self Cite

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“…The physicochemical properties of the biochar and soil were analyzed by standard laboratory methods. Soil and biochar (pH) and EC analyses were performed using a 1:5 (vol vol −1 ) soil mixture in a 1 M KCl solution [28] and an extract to distilled water [29], respectively. Cation exchange capacity was determined with an updated ammonium-acetate method [30].…”

Section: Chemical Analysismentioning

confidence: 99%

The Impact of Swine Manure Biochar on the Physical Properties and Microbial Activity of Loamy Soils

Ayaz

Feizienė

Feiza

et al. 2022

Plants

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Biochar has been proven to influence soil hydro-physical properties, as well as the abundance and diversity of microbial communities. However, the relationship between the hydro-physical properties of soils and the diversity of microbial communities is not well studied in the context of biochar application. The soil analyzed in this study was collected from an ongoing field experiment (2019–2024) with six treatments and three replications each of biochar (B1 = 25 t·ha−1 and B0 = no biochar) and nitrogen fertilizer (N1 = 160, N2 = 120 kg·ha−1, and N0 = no fertilizer). The results show that biochar treatments (B1N0, B1N1, and B1N2) significantly improved the soil bulk density and total soil porosity at different depths. The B1N1 treatment substantially enhanced the volumetric water content (VMC) by 5–7% at −4 to −100 hPa suction at 5–10 cm depth. All three biochar treatments strengthened macropores by 33%, 37%, and 41%, respectively, at 5–10 cm depth and by 40%, 45%, and 54%, respectively, at 15–20 cm depth. However, biochar application significantly lowered hydraulic conductivity (HC) and enhanced carbon source utilization and soil indices at different hours. Additionally, a positive correlation was recorded among carbon sources, indices, and soil hydro-physical properties under biochar applications. We can summarize that biochar has the potential to improve soil hydro-physical properties and soil carbon source utilization; these changes tend to elevate fertility and the sustainability of Cambisol.

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“…The ash was obtained from JSC Mortar Akmene (Venta, Lithuania). The ash was formed by burning wood pellets, all procedures and parameters are as described in details [17].…”

Section: Determination Of Chemical Composition Of the Amendmentsmentioning

confidence: 99%

Management of Nitrogen Flow in Livestock Waste System Towards an Efficient Circular Economy in Agriculture.

Doyeni

Barčauskaitė

Buneviciene

et al. 2022

Preprint

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The race is on to achieve high level of efficiency in the attainment of circular economy in Agriculture especially with the aim of sustainable nitrogen management. This cycle in the agricultural sector cuts across livestock farming, agriculture induced waste generation, recycling and utilization, energy generation, crop production, ecosystem protection and environmental management through the mitigation of climate changes. In this work, we access the process and functionalities of livestock waste generated from the piggery farm and the combinations with other by-products such as biochar and ash in comparison with mineral fertilisation (MN) as sources of nitrogen (N) applied in agricultural soil. The experiment was performed in a controlled environment with wheat (Triticum aestivum L.) grown in a neutral and an acidic soil. Pig manure was used as the primary feedstock, fed, and processed to biogas and nutrient rich digestate by anaerobic digestion process. The digestate generated were amended with biochar and ash. In the course of the cultivation period, pig manure digestate with other co-amendments showed a positive influence on mobile potassium and phosphorus contents, biomass yield and nitrogen use efficiency. Greenhouse gas (GHG) emissions in the form of methane, carbon dioxide and nitrous oxide released in both soil types from the amendments were significantly lower when compared to mineral nitrogen treatment. The amendments did not have any significant influence on dehydrogenase activity, especially in the acid soil with the pH negatively influencing the enzymatic activities. The pig manure and pig manure digestate treatments showed positive response in the soil microbial biomass-C in the two soil types when compared to other co-amendments. Application of single use amendment application or in combination with biochar and ash as a means of waste management can enhance the N flow to meet up with crop needs, reduce GHG emissions and reduce potential agriculture’s negative environmental footprint.

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Granulated biofuel ash as a sustainable source of plant nutrients

Cited by 17 publications

References 69 publications

Pig manure digestate‐derived biochar for soil management and crop cultivation in heavy metals contaminated soil

Pig manure digestate‐derived biochar for soil management and crop cultivation in heavy metals contaminated soil

The Impact of Swine Manure Biochar on the Physical Properties and Microbial Activity of Loamy Soils

Management of Nitrogen Flow in Livestock Waste System Towards an Efficient Circular Economy in Agriculture.

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