Biochar increases enzyme activity and total microbial quality of soil grown with sugarcane

Lopes, Érika Manuela Gonçalves; Reis, Matheus Mendes; Frazão, Leidivan Almeida; Terra, Lorena Emanuelle da Mata; Lopes, Eliane Marta Teixeira; Santos, Marinalva Martins dos; Fernandes, Luiz Arnaldo

doi:10.1016/j.eti.2020.101270

Cited by 59 publications

(17 citation statements)

References 47 publications

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“…Despite the apparent benefits of biochar towards a variety of soil chemical parameters, the effects of biochar on soil microorganisms have received much less attention [10,[18][19][20]. However, the response of soil microorganisms to soil amendment with biochar may vary depending on soils and agricultural practices [21].…”

Section: Introductionmentioning

confidence: 99%

Benefits of Corn-Cob Biochar to the Microbial and Enzymatic Activity of Soybean Plants Grown in Soils Contaminated with Heavy Metals

Haddad

Lemanowicz

2021

Energies

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Synchronous effects of biochar on heavy metals stress, microbial activity and nodulation process in the soil are rarely addressed. This work studied the effects, under greenhouse conditions, of selected heavy metals Cd2+, Pb2+ and Ni2+ on soybean plants grown in two different soils amended with biochar, and studied their effect on the microbial and enzymatic activity. As a result of the interference between heavy metals and biochar, biochar overcame heavy metal problems and maintained a microbial population of major groups (bacteria–fungi). There was an increase in the degree of resistance (RS) of the major microbial groups to heavy metals when biochar was added to the soil under study. Numbers of bacterial nodules significantly increased, particularly by using the higher rate of biochar compared to the control, either by adding biochar alone or by mixing it with the selected heavy metals. The arginase activity was increased by 25.5% and 37.1% in clay and sandy soil, respectively, compared to the control. For urease (UR), the activity was increased by 105% and 83.8% in clay and sandy soil, respectively, compared to the control. As a result, considerations of using biochar as a soil amendment should be first priority.

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Section: Introductionmentioning

confidence: 99%

Benefits of Corn-Cob Biochar to the Microbial and Enzymatic Activity of Soybean Plants Grown in Soils Contaminated with Heavy Metals

Haddad

Lemanowicz

2021

Energies

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“…Another reason that might reduce omnivorous/predatory abundance in our study is that the application of a high amount of biochar may increase suitable habitats for microbial community and provide a shelter to escape predator activities by bacterivorous and fungivorous nematodes [74], which contributed to fewer food resources for omnivorous/predatory nematodes. Recent studies revealed that the application of 40 Mg ha −1 eucalyptus waste biochar reduced the enzyme activity and total microbial activity (fluorescein diacetate hydrolysis activity) of soil [75], which correlated with the reduced abundance of bacterivorous and fungivorous nematodes [23,76]. Biochar has several million pores varying in size and large surface areas [74,77], leading to improved aggregation and porosity of soil and stimulated microbial activity and biomass [78,79].…”

Section: Effects Of Biochar On Maturity Index and Metabolic Footprint...mentioning

confidence: 99%

Influence of Rice Husk Biochar on Soil Nematode Community under Upland and Flooded Conditions: A Microcosm Experiment

et al. 2022

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Biochar has the potential for improving soil properties and supporting ecological functions, but it has negative impacts on soil organisms in some cases. This study aimed to assess the effect of biochar application at rates of 0 (B0), 5 Mg ha−1 (B5), 20 Mg−1 (B20), and 40 Mg ha−1 (B40) on soil nematode community under upland and flooded conditions in a short-term microcosm experiment. After biochar application, soil was incubated for 2 to 8 weeks and nematodes were identified for community composition, trophic structures, functional guilds, maturity index and metabolic footprints. The chemical properties of the soils were also analyzed. General linear model revealed that biochar increased soil pH, EC, NO3−-N, available phosphorus, total C, and C/N ratio, particularly in the highest application rate and shifted the composition of nematodes. The greatest abundances of omnivores (Mesodorylaimus, Thornenema), predator (Nygolaimus) and functional guilds of cp5 were observed in B5, resulting in greatest structure footprint and composite footprint, (omnivorous + predator) footprint and total biomass in B5. While abundances of nematodes tended to decrease with the biochar applicate rates, the abundance of Prismatolaimus was the highest in B40. During the 8-week incubation period, the abundances of Achromadora, Alaimus, Aporcelaimellus, Cryptonchus, Mononchus, and Tobrilus remained stable in upland conditions. Under flooded conditions, the abundances of almost all taxa were markedly lower than those under upland conditions irrespective of biochar application, except for Acrobeloides, Alaimus, Aphelenchoides, and Ditylenchus. We highlighted that 5 Mg ha−1 of rice husk biochar can be the optimum in shaping the nematode community.

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“…Multiple studies have shown the potential of biochar to improve soil health. Increases in cation exchange and water holding capacity as well as enhanced nutrients uptake, microbial activity, and fertilizer performance have been observed with the use of biochar in soil [32][33][34]. The effects on the soil have direct impacts on agricultural productivity.…”

Section: Transformation and Resource Recoverymentioning

confidence: 99%

“…6. In addition to storing carbon, biochar has been shown to improve the soil quality and if enriched can potentially be a replacement to synthetic fertilizers, which would lead to additional CO 2 savings [32,35,36].…”

Section: Environmental Impactmentioning

confidence: 99%

Mosan: Combining Circularity and Participatory Design to Address Sanitation in Low-Income Communities

2021

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The health and environmental impact of unsafe sanitation affects more than half of the world’s population. The lack of access to safe sanitation affects disproportionately rural populations in low- and middle-income countries, where progress is also shown to be slower. The sheer scale of the problem, combined with the variability of climate, geographies, and socioeconomic conditions, requires a variety of adaptable, scalable, centralized, and decentralized solutions working cohesively. This paper presents the case of Mosan, an off-grid, market-based sanitation solution, in order to display how such sanitation approaches can contribute to bridge this gap by addressing the communities most at risk. Mosan is a decentralized, circular sanitation solution encompassing the whole sanitation chain from containment, collection, transport, transformation, and reuse. Focused on community-scale systems, Mosan is applying participatory design principles and co-creation to enable community engagement, raise awareness, trigger creativity, and support local innovation.

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Biochar increases enzyme activity and total microbial quality of soil grown with sugarcane

Cited by 59 publications

References 47 publications

Benefits of Corn-Cob Biochar to the Microbial and Enzymatic Activity of Soybean Plants Grown in Soils Contaminated with Heavy Metals

Benefits of Corn-Cob Biochar to the Microbial and Enzymatic Activity of Soybean Plants Grown in Soils Contaminated with Heavy Metals

Influence of Rice Husk Biochar on Soil Nematode Community under Upland and Flooded Conditions: A Microcosm Experiment

Mosan: Combining Circularity and Participatory Design to Address Sanitation in Low-Income Communities

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