Optimising water holding capacity and hydrophobicity of biochar for soil amendment – A review

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 851, P. 158043 - 158043

Published: Aug. 17, 2022

Language: Английский

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Identifying biochar production variables to maximise exchangeable cations and increase nutrient availability in soils

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 446, P. 141454 - 141454

Published: Feb. 24, 2024

Biochar is a product of the thermal treatment sustainably sourced organics or waste biomass, which enhances nutrient availability and exchangeable cations after soil application. feedstock one primary factors influencing in biochar soil-biochar mix. However, this influence not satisfactorily understood due to contrasting data among literature for cation exchange capacity (CEC) lack standard analysis methods CEC mixtures. Therefore, research was conducted assess mixes, where measured as (1) sum base (Na+, K+, Mg 2+, Ca2+) displaced by ammonium acetate (CEC-BC) (2) NH4+ potassium chloride (CEC-NH4+). For first time, we have evaluated CEC-BC CEC-NH4+ 21 different samples using modified method. We then used 12 representative biochars with 3 types (2% w/w biochar) provided insights on relative changes individual cations. Some previous studies indicated relationship between surface area degree additivity resulting mixes. our study demonstrates an absence these correlations products. found that prepared from mixed garden wastes can increase K+ Ca2+ loamy sandy soils mitigate potential sodicity problems soils. clayey may need specific purpose increasing Our results revealed hardwood retain deliver it acting sink source nutrients.

Language: Английский

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Lignocellulosic biomass fertilizers: Production, characterization, and agri-applications

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 923, P. 171343 - 171343

Published: March 2, 2024

Language: Английский

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Towards Climate-Smart Agriculture: Strategies for Sustainable Agricultural Production, Food Security, and Greenhouse Gas Reduction

Agronomy, Journal Year: 2025, Volume and Issue: 15(3), P. 565 - 565

Published: Feb. 25, 2025

Without transformative adaptation strategies, the impact of climate change is projected to reduce global crop yields and increase food insecurity, while rising greenhouse gas (GHG) emissions further exacerbate crisis. While agriculture a major contributor through unsustainable practices, it also offers significant opportunities mitigate these adoption sustainable practices. This review examines climate-smart (CSA) as key strategy for enhancing productivity, building resilience, reducing GHG emissions, emphasizing need strategic interventions accelerate its large-scale implementation improved security. The analysis revealed that nitrogen use efficiency (NUE) has in developed countries, NUE remains at 55.47%, precision nutrient management integrated soil fertility strategies enhance productivity minimize environmental impacts. With 40% world’s agricultural land already degraded, sustainability alone insufficient, necessitating shift toward regenerative practices restore degraded water by improving health, biodiversity, increasing carbon sequestration, thus ensuring long-term resilience. CSA including agriculture, biochar application, agroforestry, improve security, emissions. However, result variability highlights site-specific optimize benefits. Integrating multiple enhances health more effectively than implementing single practice alone. Widespread faces socio-economic technological barriers, requiring supportive policies, financial incentives, capacity-building initiatives. By adopting technologies, can transition sustainability, securing systems addressing challenges.

Language: Английский

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Global analysis on potential effects of biochar on crop yields and soil quality

Soil Ecology Letters, Journal Year: 2025, Volume and Issue: 7(1)

Published: Jan. 3, 2025

Language: Английский

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Nitrogen availability in biochar-based fertilizers depending on activation treatment and nitrogen source

Waste Management, Journal Year: 2023, Volume and Issue: 158, P. 76 - 83

Published: Jan. 13, 2023

Different activation and N-doping treatments were used to produce biochar-based fertilizers (BBFs) with increased N concentration slow release. Pristine biochars produced by pyrolysis of olive tree pruning feedstock at low high temperatures (400 800 °C). These activated either ultrasonication, or oxidation hydrogen peroxide (H2O2) nitric acid (HNO3) increase their retention potential. Subsequently enriched urea ammonium sulfate. The low-temperature HNO3 was the most effective treatment leading new surface carboxylic groups that facilitated later enrichment N. When treated urea, BBFs reached 7.0 N%, whereas H2O2 only allowed an up 2.0 N%. use as external source efficient for incorporating Urea had a water-soluble fraction represented 14.5 % total hydrolyzable fraction, composed amides simple heterocycles originated treatments, nitro generated from activation, 60 This study relates chemical forms in potential availability soil. presence water-soluble, non-hydrolyzable implied these may supply would be progressively available plants, acting slow-release fertilizers.

Language: Английский

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Research trends on biochar-based smart fertilizers as an option for the sustainable agricultural land management: Bibliometric analysis and review

Frontiers in Soil Science, Journal Year: 2023, Volume and Issue: 3

Published: Feb. 28, 2023

Several studies have investigated nutrient-enriched and nutrient poor biochar to improve soil properties, increase use efficiency crop productivity. Review articles presented formulations production methods of biochar-based fertilizers. They reported improves -45ves productivity, health preserves the environment. But so far, none has conceptualized as a smart fertilizer or conceptual intellectual structures collaborative networks authors countries working on For first time, this study mapped scientific knowledge generated topic established solid ground for its innovative progress research pursuits. A total 2,779 publications fertilizers were exported from scopus database in August 2022 analyzed using bibliometrix software package biblioshiny web interface R version 4.1.3. The results indicated that papers our collection cover period 2007 with raising number 2017 2021. Almost all documents (99.38%) co-authored an average 6 (5.76) per article. analysis keywords evolution topics revealed relation organic sources, microbiology sanitation most studied debates. China had more collaboration network fertilizers, while West African belonging not developed any far. This suggests formulation projects may involve work other including China, USA, Germany, Australia Poland. is comprehensive terms global view contours actors Future should be conducted fields under farmers’ conditions focus (i) enrichment nutrients sources before application soil, (ii) remediation applications, (iii) economic profitability small-scale farmers.

Language: Английский

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Biochar as Soil Amendment in Climate-Smart Agriculture: Opportunities, Future Prospects, and Challenges

Journal of soil science and plant nutrition, Journal Year: 2024, Volume and Issue: 24(1), P. 135 - 158

Published: Feb. 7, 2024

Language: Английский

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Mechanisms of biochar-based organic fertilizers enhancing maize yield on a Chinese Chernozem: Root traits, soil quality and soil microorganisms

Environmental Technology & Innovation, Journal Year: 2024, Volume and Issue: 36, P. 103756 - 103756

Published: July 18, 2024

The Chinese Chernozems face extreme challenges of soil degradation and crop productivity decline. Biochar-based organic fertilizer (BOF) is effectively applied to improve yield quality. Nonetheless, the mechanisms involved in enhancement interaction with root traits, quality, microorganisms after BOF application remain unclear. Herein, a two-year field experiment three rates [3.0 Mg ha−1 (BOF3), 6.0 (BOF6), 9.0 (BOF9)] was conducted evaluate impact on microorganisms, no as control treatment (CK). Compared CK, increased maize by 9.1 ∼ 32.0 % second year application, highest (16.1 ha−1) obtained BOF6. plant growth index 29.7 98.9 %, mainly attributed increase volume (2.4 57.4 %), aboveground biomass (31.4 44.0 nitrogen (N) uptake (123.2 216.0 %). quality not only topsoil (27.7 31.1 %) but also subsoil (22.7 25.1 BOF, particularly two (BOF6 BOF9). This ascribed notable microbial carbon, total N, NH4+-N, N-acquiring enzyme activity (normalized leucine aminopeptidase alkaline phosphatase). Moreover, abundance Actinobacteria, Mortierellomycota at 0–40 cm, Chloroflexi 0–20 Acidobacteriota, Ascomycota 20–40 which confirmed their key roles activating nutrient subsequent enhancing stimulating growth. Overall, biochar-based rate promising regime enhance regulating keystone taxa, thereby boosting Chernozem soil.

Language: Английский

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An organic matter database (OMD): consolidating global residue data from agriculture, fisheries, forestry and related industries

Earth system science data, Journal Year: 2025, Volume and Issue: 17(2), P. 369 - 391

Published: Feb. 3, 2025

Abstract. Agricultural, fishery, forestry and agro-processing activities produce large quantities of residues, by-products waste materials every year. Inappropriate disposal inefficient use these resources contribute to greenhouse gas emissions non-point pollution, placing significant environmental economic burdens on society. Since many nations do not keep statistics materials, it has been possible accurately quantify the amounts produced, their competing uses potentially available for recycling at a local level. Therefore, objectives present work were provide (1) definitions, typologies methods aid consistent classification, estimation reporting various residues by-products, (2) global organic matter database (OMD) from agriculture, fisheries, related industries (3) regional estimates in circular bio-economy. To best our knowledge, OMD is first its kind consolidate nutrient concentrations globally (available https://doi.org/10.5281/zenodo.10450921; Sileshi et al., 2024). The will be updated continuously as new production data are published FAOSTAT country-specific conversion coefficients become available. This information expected evidence-based policies actions support sustainable utilization transition towards economy. could used variety purposes, including residue availability soil amendment, livestock feed, bioenergy other industrial applications well assessment impacts management practices such application burning. only national Due lack uniform methodology, across countries, was difficult estimate all agricultural, fishery by-products. we strongly recommend investment inventory wastes sub-national levels

Language: Английский

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