Biofuel ash granules as a source of soil and plant nutrients

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

doi:10.13080/z-a.2021.108.003

Cited by 5 publications

(6 citation statements)

References 32 publications

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“…The main chemical composition of the ash is Ca (30.2%), K (5.7%), P (3.86%) and Mg (2.43%). All other major and micro-elements are as detailed in previous study (Buneviciene et al, 2021).…”

Section: Determination Of Chemical Composition Of the Amendmentsmentioning

confidence: 99%

“…The content of mobile potassium (K 2 O) and mobile phosphorus (P 2 O 5 ) in the soil was determined using ammonium lactate-acetic acid extraction by the Egner, Riehm and Domingo (A-L) method. The determination of soil pH was made in 1:5 (vol −1 ) soil suspension in the 1 M KCl solution (Buneviciene et al, 2021). The total nitrogen (N tot ) was determined using the Kjeldahl nitrogen distiller method.…”

Section: The Physicochemical Parameters Of the Soil Typesmentioning

confidence: 99%

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Nitrogen flow in livestock waste system towards an efficient circular economy in agriculture

et al. 2022

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The race is on to achieve an important level of efficiency in the attainment of a 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 assess the process and functionalities of livestock waste generated from the piggery farm and their combinations with other by-products such as biochar and ash in comparison with mineral fertilization as sources of nitrogen 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 the anaerobic digestion process. The results revealed that the co-amendments of pig manure digestate with biochar and ash had complimentary positive effect on measured indices such as mobile potassium, phosphorus, biomass yield and nitrogen use efficiency. The mineral nitrogen fertilizer significantly induced carbon dioxide emissions from day 35 when compared to emissions from the organic amendments. In contrast, the organic amendments influenced nitrous oxide emissions from the onset till day 30 before flattening out. The individual combination of pig manure digestate with biochar and ash had a negative influence on enzymatic activity (dehydrogenase). Soil microbial biomass carbon was induced across all treatments in both soil types. Pig manure digestate + ash and pig manure digestate had 32.1 and 48.8% soil microbial biomass increase in neutral soil and acidic soil, respectively. Overall, the processing and application of single-use amendment or in combination with biochar and ash holds huge potential in the optimization of nitrogen and carbon efficiency towards sustainable soil management via improving soil quality, carbon sequestration and climate change.

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“…The main chemical composition of the ash is Ca (30.2%), K (5.7%), P (3.86%) and Mg (2.43%). All other major and micro-elements are as detailed in previous study (Buneviciene et al, 2021).…”

Section: Determination Of Chemical Composition Of the Amendmentsmentioning

confidence: 99%

Section: The Physicochemical Parameters Of the Soil Typesmentioning

confidence: 99%

Nitrogen flow in livestock waste system towards an efficient circular economy in agriculture

et al. 2022

Self Cite

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show abstract

“…The content of mobile potassium (K 2 O), mobile phosphorus (P 2 O 5 ) in the soil was determined using ammonium lactate-acetic acid extraction by the Egner, Riehm and Domingo (A-L) method. The determination of soil pH was made in 1:5 (vol −1 ) soil suspension in the 1 M KCl solution [14]. The total nitrogen (N tot ) was determined using the Kjeldal nitrogen distiller method.…”

Section: The Physico-chemical Parameters Of the Soil Typesmentioning

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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“…The content of mobile K 2 O, mobile P 2 O5, Ca, and Mg in the soil was determined using ammonium lactate-acetic acid extraction by the Egner, Riehm, and Domingo (A-L) method. The determination of soil acidity (pH) was made in 1:5 (vol −1 ) soil suspension in the 1 M KCl solution [27]. The same analyses were made after the experiment, and changes in soil chemical composition after the experiment are presented in the results section.…”

Section: Determination Of Soil Physicochemical Propertiesmentioning

confidence: 99%

Effect of Animal Waste Based Digestate Fertilization on Soil Microbial Activities, Greenhouse Gas Emissions and Spring Wheat Productivity in Loam and Sandy Loam Soil

et al. 2021

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The increasing quantities of organic residues are becoming one of the most important problems for climate change mitigation. Sustainable utilization technologies are required to minimize the effect of recycling on the environment. Nevertheless, treated residues should be part of the circular bioeconomy. One of the most promising processes is the biogas system, with the final products biogas and digestate, which contain valuable nutrients and are therefore suitable as agricultural fertilizers. However, there is lack of research data on the effectiveness of digestate on environmental factors including soil quality as well as crop productivity and quality. In this study, we compare the roles of different digestates (chicken manure digestate, cow manure digestate, and pig manure digestate) on spring wheat productivity, soil microbial activities, and greenhouse gas emissions in loam and sandy loam soil under controlled climate conditions. The liquid digestate applied was equivalent to 170 kg N ha−1 of total N presented. Overall, results showed that the two soil types responded differently to the addition of the digestates, and the benefits depended on soil characteristics as well as on the type of the digestate applied. There was a higher effect on soil microbial activity in sandy loam soil compared to that of loam soil. Chicken manure digestate had the highest value of dehydrogenase activity and soil microbial biomass C of 9.23 µg TPFg−1 h−1 and 175.6 µg g−1 across the two soil types. CO2 and N2O emissions were moderately higher in loam soil when compared to that of sandy loam soil. The highest CO2 peak emission at 0.0107 µg ha−1 h−1 occurred in pig manure digestate in the sandy loam soil, and regular peak patterns observed in loam soil fertilized with pig digestate manure. Chicken manure digestate had the highest peak emissions across both soil types at 0.007950 mg ha−1 h−1 and 0.5667 mg ha−1 h−1 in the loam and sandy loam soil, respectively. The biomass yield varied across the soil types irrespective of the digestate applied. The agricultural benefits of digestates in different receiving soil ecosystems supplying essential nutrients for crop productivity, coupled with its environmental benefits, makes it an encouraging prospect in temperate climate zones.

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Biofuel ash granules as a source of soil and plant nutrients

Cited by 5 publications

References 32 publications

Nitrogen flow in livestock waste system towards an efficient circular economy in agriculture

Nitrogen flow in livestock waste system towards an efficient circular economy in agriculture

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

Effect of Animal Waste Based Digestate Fertilization on Soil Microbial Activities, Greenhouse Gas Emissions and Spring Wheat Productivity in Loam and Sandy Loam Soil

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