Biochar for environmental management: an introduction

Lehmann, Johannes; Joseph, Stephen

doi:10.4324/9780203762264-8

Cited by 132 publications

(20 citation statements)

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“…Also, Masto et al (2013) related the several nutrients in plant tissues following the application of biochar to the production variables of biochar and complex physiochemical properties, which may be involved in the biochar-soil-plant interaction system. Another reason for the significant increases in nitrogen and phosphorus uptake in shoots and grains could be the ability of biochar amendments to reduce soil bulk density leading to increased root penetration that allows the uptake of nutrients from the soil solution (Glaser et al 2002, Lehmann andJoseph 2015). Moreover, Asai et al (2009) asserted that biochar induces water permeability and holding capacity and raises the amount of available water to plants and thus poses direct impacts on plant nutrient uptake.…”

Section: Effects Of Methods Of Biochar Application On Cowpea Nitrogenmentioning

confidence: 99%

Method of biochar application affects growth, yield and nutrient uptake of cowpea

et al. 2020

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Biochar produced from pyrolysis of organic materials has been found to improve plant growth by improving the physical and chemical characteristics of the soil as well as enhancing the sequestration of carbon dioxide that would release into the atmosphere through the decomposition of organic residues. However, there is scanty information on the methods used to apply biochar in order to optimize the benefits of biochar use for agricultural production. In view of this, a field study was carried out at the experimental field of CSIR – Soil Research Institute, Kumasi, to assess the effect of method of biochar application on the growth, yield and nutrient uptake of cowpea (Vigna unguiculata) in a moderately acidic sandy Ferric Acrisol. The experiment was set up using a Randomized Complete Block Design with three replications. The treatments imposed were as follows: control, broadcasting, spot and ring methods of application. The parameters assessed included growth and yield data as well as nitrogen and phosphorus uptake in shoots and grains. The data collected were subjected to analysis of variance using Genstat 12th edition. The results showed that the spot and ring methods of application significantly enhanced height, girth, nodule number and dry weight, shoot biomass and grain yield as well as nitrogen and phosphorus contents in shoots and grains when compared with the broadcasting method and control. This study therefore recommends the spot and ring methods of biochar application for adoption in cowpea production for enhanced growth, yield and nitrogen and phosphorus uptake.

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Section: Effects Of Methods Of Biochar Application On Cowpea Nitrogenmentioning

confidence: 99%

Method of biochar application affects growth, yield and nutrient uptake of cowpea

et al. 2020

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“…Biochar is a carbon-rich co-product produced when pyrolyzing biomass and pyrolized seaweed biomass has a great potential to be used in soil amelioration (Lehmann and Joseph, 2009;Biederman and Harpole, 2013). Our results show that the biochar content was higher during early spring at the first harvest and notably, the values measured during the first harvest of this study (35.7% dw) were in the upper range of what has been reported in previous studies of the same species (30.3-33.82% dw, Toth et al, 2020) and other Ulva species (Ulva ohnoi 34-35% dw, Roberts et al, 2015).…”

Section: Biochar and Ash Contentmentioning

confidence: 99%

“…For example, seaweeds contain polyunsaturated fatty acids (PUFAs), as well as highvalue carbohydrates and phytochemicals, which make them interesting for the cosmeceutical and pharmacological sectors and as functional foods. Furthermore, seaweed can be used to produce biochar with great potential in soil amelioration as it resists decomposition, effectively sequesters carbon and mitigates anthropogenic CO 2 emissions (Lehmann and Joseph, 2009;Biederman and Harpole, 2013). Even bioenergy, generated from seaweeds, offers noticeable advantages and profitability can be achieved by selecting fast growing seaweed species (Gao et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Harvest Time Can Affect the Optimal Yield and Quality of Sea Lettuce (Ulva fenestrata) in a Sustainable Sea-Based Cultivation

et al. 2022

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Seaweed biomass is a renewable resource with multiple applications. Sea-based cultivation of seaweeds can provide high biomass yields, low construction, operation, and maintenance costs and could offer an environmentally and economically sustainable alternative to land-based cultivations. The biochemical profile of sea-grown biomass depends on seasonal variation in environmental factors, and the optimization of harvest time is important for the quality of the produced biomass. To identify optimal harvest times of Swedish sea-based cultivated sea lettuce (Ulva fenestrata), this study monitored biomass yield, morphology, chemical composition, fertility, and biofouling at five different harvesting times in April – June 2020. The highest biomass yields (approximately 1.2 kg fw [m rope]–1) were observed in late spring (May). The number and size of holes in the thalli and the amount of fertile and fouled tissue increased with prolonged growth season, which together led to a significant decline in both biomass yield and quality during summer (June). Early spring (April) conditions were optimal for obtaining high fatty acid, protein, biochar, phenolic, and pigment contents in the biomass, whereas carbohydrate and ash content, as well as essential and non-essential elements, increased later in the growth season. Our study results show that the optimal harvest time of sea-based cultivated U. fenestrata depends on the downstream application of the biomass and must be carefully selected to balance yield, quality, and desired biochemical contents to maximize the output of future sea-based algal cultivations in the European Northern Hemisphere.

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“…According to Lehmann and Joseph (2009), biochar not only enhances water and nutrient retention properties, but also contributes to creating favorable micro-environments to accommodate microorganisms. Addition of biochar in soil may affect soil composition, soil diversity and microbial activity (Doan et al, 2014;Purakayastha et al, 2015;Wang et al, 2015;Pan et al, 2016).…”

Section: Resultsmentioning

confidence: 99%

The Effects of Thermal Proses Solid Product on Development of “Cicar Arietinum L.” and “Allium Ascalonicum”

Özbaş

Öngen

Özcan

2020

International Journal of Agriculture Environment and Food Sciences

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Today, the number of wastewater treatment plants is rapidly increasing. Accordingly, there is a large increase in the amount of sewage sludge. The sewage sludge obtained should be disposed of in such a way as not to damage the environment. Among these methods, disposal of sewage sludge by landfill is one of the most suitable methods in terms of environment and economics. In this study, the effects on the development of "Cicer Arietinum" and "Allium Ascalonicum" plants were investigated by adding municipal solid waste compost, brewery sludge, pyrolysis solid product of brewery sludge and chemical fertilizer at certain rates to the soil in order to improve the soil and increase the yield. As a result, it can be seen that the materials used can be used for remediation of the soil and contribute to the development of the plant. As a result of the study, it was observed that the soil mixture obtained by mixing the pyrolysis solid product with soil at certain ratios positively affected plant growth. Soil and pyrolysis solid product (25%) provided the highest yield for "Cicer Arietinum".Soil and brewery sludge (25%) provided the highest yield for "Allium Ascalonicum".

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Biochar for environmental management: an introduction

Cited by 132 publications

References 1 publication

Method of biochar application affects growth, yield and nutrient uptake of cowpea

Method of biochar application affects growth, yield and nutrient uptake of cowpea

Harvest Time Can Affect the Optimal Yield and Quality of Sea Lettuce (Ulva fenestrata) in a Sustainable Sea-Based Cultivation

The Effects of Thermal Proses Solid Product on Development of “Cicar Arietinum L.” and “Allium Ascalonicum”

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