Microbial community shifts 2.6 years after top dressing of Miscanthus biochar, hydrochar and feedstock on a temperate grassland site

Rex, David; Schimmelpfennig, Sonja; Jansen-Willems, Anne; Moser, Gerald M.; Kammann, Claudia; Müller, Christoph

doi:10.1007/s11104-015-2618-y

Cited by 25 publications

(12 citation statements)

References 64 publications

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“…However, since this earlier publication, no new evidence for such effects can be cited. Several authors (Lehmann et al , ; Joseph et al , ; Rex et al , ; Kolton et al , ; Ye et al , ) recently showed that biochar application (iv) influences the rhizosphere microbiome, may increase microbial diversity or metabolic efficiency and that it can cause changes in the metabolic potential of the rhizosphere. Enriching biochar with microbial nutrients such as cow urine may further modify and probably increase the influence on the rhizosphere microbiome and microbial‐root symbioses.…”

Section: Discussionmentioning

confidence: 99%

Biochar‐Based Fertilization with Liquid Nutrient Enrichment: 21 Field Trials Covering 13 Crop Species in Nepal

Schmidt¹,

Pandit²,

Cornelissen

et al. 2017

Land Degrad Dev

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Biochar produced in cost‐efficient flame curtain kilns (Kon‐Tiki) was nutrient enriched either with cow urine or with dissolved mineral (NPK) fertilizer to produce biochar‐based fertilizers containing between 60–100 kg N, 5–60 kg P2O5 and 60–100 kg K2O, respectively, per ton of biochar. In 21 field trials, nutrient‐enriched biochars were applied at rates of 0·5–2 t ha−1 into the root zone of 13 different crops. Treatments combining biochar, compost and organic or chemical fertilizer were evaluated; control treatments contained same amounts of nutrients but without biochar. All nutrient‐enriched biochar substrates improved yields compared with their respective no‐biochar controls. Biochar enriched with dissolved NPK produced on average 20% ± 5·1% (N = 4 trials) higher yields than standard NPK fertilization without biochar. Cow urine‐enriched biochar blended with compost resulted on average in 123% ± 76·7% (N = 13 trials) higher yields compared with the organic farmer practice with cow urine‐blended compost and outcompeted NPK‐enriched biochar (same nutrient dose) by 103% ± 12·4% (N = 4 trials) respectively. Thus, the results of 21 field trials robustly revealed that low‐dosage root zone application of organic biochar‐based fertilizers caused substantial yield increases in rather fertile silt loam soils compared with traditional organic fertilization and to mineral NPK or NPK‐biochar fertilization. This can be explained by the nutrient carrier effect of biochar, causing a slow nutrient release behaviour, more balanced nutrient fluxes and reduced nutrient losses, especially when liquid organic nutrients are used for the biochar enrichment. The results open up new pathways for optimizing organic farming and improving on‐farm nutrient cycling. Copyright © 2017 John Wiley & Sons, Ltd.

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Section: Discussionmentioning

confidence: 99%

Biochar‐Based Fertilization with Liquid Nutrient Enrichment: 21 Field Trials Covering 13 Crop Species in Nepal

Schmidt¹,

Pandit²,

Cornelissen

et al. 2017

Land Degrad Dev

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“…The number of published works on the impact of HC on soil-resident fungi is very limited and undoubtedly lower than that of BC on the same topic. Microbial community shift, including fungal species (Rex et al., 2015) and performance of arbuscular mycorrhizal fungi (Salem et al., 2013) in the presence of HC were the only two aspects addressed by scientists to date. Recent findings indicate that changes in the functionality of microbial community may occur as a consequence of BC and HC application to soil, and such changes would eventually have also a relevant impact on soil fertility, especially when ligninolytic fungi are involved.…”

Section: Introductionmentioning

confidence: 99%

Biochar and hydrochar from waste biomass promote the growth and enzyme activity of soil-resident ligninolytic fungi

Taskin

Branà

Altomare

et al. 2019

Heliyon

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Biochar (BC) and hydrochar (HC) are carbonaceous products obtained through, respectively, pyrolysis and hydrothermal carbonization processes of biomass. Both materials are multi-functional soil amendments. Ligninolytic fungi are primary decomposers of recalcitrant lignocellulosic material in nature through their extensive hyphal network and enzymes. In this work, two BC samples from red spruce pellets (BC SP ) and grapevine pruning residues (BC GV ) and two HC samples from urban pruning residues (HC UP ) and the organic fraction of solid urban wastes (HC SU ) were tested at concentrations of 0.4% and 2% (w/v) on the growth and enzyme activity of Trametes versicolor , Pleurotus ostreatus and Pleurotus eryngii . In all treatments with the lower concentration, BC and HC significantly stimulated fungal growth (up to about 90% increase for HC SU on T. versicolor ), whereas at the higher dose some inhibition was observed on T. versicolor by BC SP and P. ostreatus by BC SP , BC GV and HC UP . The two materials, especially HC, at both doses noticeably increased the activity of laccase from T. versicolor and P. eryngii , up to 21 and 13 times, respectively, for HC UP compared to controls. The activity of manganese peroxidase from P. ostreatus was also greatly stimulated by BC and HC, especially when added at the higher concentration. The overall results obtained in this study suggest potential benefits for ligninolytic fungi from the presence of these materials in soil at adequate dose of application.

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“…The adding of "fresh biochar" to soil has been shown to induce short-term disturbance to the moisture equilibrium in soils due to the effect of capillary action, drawing moisture from soil pore spaces. In turn, this can cause negative effects on soil microbial communities and abundance through instantaneous desiccation (Dempster et al, 2012;Ameloot et al, 2013;Rex et al, 2015). However, soil pH and the other targeted traits were not significantly correlated with any bacterial diversity index.…”

Section: Influence Of Soil Chemical Properties On the Diversity Of Rhmentioning

confidence: 99%

The Impact of Soil-Applied Biochars From Different Vegetal Feedstocks on Durum Wheat Plant Performance and Rhizospheric Bacterial Microbiota in Low Metal-Contaminated Soil

et al. 2019

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Microbial community shifts 2.6 years after top dressing of Miscanthus biochar, hydrochar and feedstock on a temperate grassland site

Abstract: Background and aims Within the last decades, consid-

Cited by 25 publications

References 64 publications

Biochar‐Based Fertilization with Liquid Nutrient Enrichment: 21 Field Trials Covering 13 Crop Species in Nepal

Biochar‐Based Fertilization with Liquid Nutrient Enrichment: 21 Field Trials Covering 13 Crop Species in Nepal

Biochar and hydrochar from waste biomass promote the growth and enzyme activity of soil-resident ligninolytic fungi

The Impact of Soil-Applied Biochars From Different Vegetal Feedstocks on Durum Wheat Plant Performance and Rhizospheric Bacterial Microbiota in Low Metal-Contaminated Soil

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