Biochar enhanced the nitrifying and denitrifying bacterial communities during the composting of poultry manure and rice straw

Zainudin, Mohd Huzairi Mohd; Mustapha, Nurul Asyifah; Maeda, Takeyasu; Ramli, Norhayati; Sakai, Kokki; Hassan, Mohd Ali

doi:10.1016/j.wasman.2020.03.029

Cited by 130 publications

(32 citation statements)

References 47 publications

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“…Besides, the NO − 3 -N varied greatly in our study, and the community structures of bacteria and fungi were positively correlated with NO − 3 -N. This indicated that soil nitrogen resources might be critical environmental factors affecting soil microbial community structures. This is consistent with the results of Zainudin et al (2020), who indicated that changes in soil nitrogen levels following the addition of biochar were the major factors affecting the soil microbial communities. However, the influences of soil characteristics on the community structure are different in different studies.…”

Section: Effects Of Biochar and Intercropping On Tomato Rhizosphere Soil Microbial Communitiessupporting

confidence: 92%

Biochar and Intercropping With Potato–Onion Enhanced the Growth and Yield Advantages of Tomato by Regulating the Soil Properties, Nutrient Uptake, and Soil Microbial Community

Xie

Gao

et al. 2021

Front. Microbiol.

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The application of biochar stimulates the activities of microorganisms that affect soil quality and plant growth. However, studies on the impacts of biochar mainly focus on a monoculture, its effects on interspecific interactions are rarely reported. Here, we investigated the impacts of biochar on tomato/potato–onion intercropped (TO) in a pot experiment. Tomato monoculture (T) and TO were treated with no, 0.3, 0.6, and 1.2% biochar concentrations in a pot experiment. Microbial communities from tomato rhizosphere soil were analyzed by quantitative PCR and Illumina MiSeq. The results showed that compared with the tomato monoculture, 0.6%TO and 1.2%TO significantly increased tomato yield in 2018. TO and 1.2%TO significantly increased plant height and dry weight in 2018 and 2019. Biochar treatments increased soil pH, decreased NO3--N and bulk density, and increased the absorption of N, P, and K by tomato. Bacterial and fungal abundances increased with an increase in biochar concentration, while Bacillus spp. and Pseudomonas spp. abundances showed an “increase-decrease-increase” trend. Biochar had a little effect on bacterial diversities but significantly lowered fungal diversities. TO, 0.6%TO, and 1.2%TO increased the potentially beneficial organisms (e.g., Pseudeurotium and Solirubrobacter) and lowered the potentially pathogenic organisms (e.g., Kribbella and Ilyonectria). Different concentrations of biochar affected the bacterial and fungal community structures. Redundancy analysis indicated that the bacterial community was strongly correlated with soil pH, NO3--N, and EC, while the fungal community was closely related to soil NO3--N and moisture. The network analysis showed that biochar and intercropping affected the symbiosis pattern of the microorganisms and increased the proportion of positive interactions and nitrifying microorganisms (Nitrospirae) in the microbial community. Overall, our results indicated that monoculture and intercropping with biochar improved soil physicochemical states and plant nutrient absorption, and regulated soil microbial communities, these were the main factors to promote tomato growth and increase tomato productivity.

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Section: Effects Of Biochar and Intercropping On Tomato Rhizosphere Soil Microbial Communitiessupporting

confidence: 92%

Biochar and Intercropping With Potato–Onion Enhanced the Growth and Yield Advantages of Tomato by Regulating the Soil Properties, Nutrient Uptake, and Soil Microbial Community

Xie

Gao

et al. 2021

Front. Microbiol.

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“…This indicates that the sewage sludge generated a more restrictive environment for microbiota proliferation, probably due to the limited access to the carbon present. In another composting process elaborated with poultry manure and rice straw (Zainudin et al, 2020), the values of the Shannon index oscillated in the same range to those presented by the three facilities studied.…”

Section: S Rrna Phylogeny Comparative and Statistical Analysissupporting

confidence: 54%

Industrial Composting of Sewage Sludge: Study of the Bacteriome, Sanitation, and Antibiotic-Resistant Strains

et al. 2021

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Wastewater treatment generates a huge amount of sewage sludge, which is a source of environmental pollution. Among the alternatives for the management of this waste, industrial composting stands out as one of the most relevant. The objective of this study was to analyze the bacterial population linked to this process and to determine its effectiveness for the reduction, and even elimination, of microorganisms and pathogens present in these organic wastes. For this purpose, the bacteriome and the fecal bacteria contamination of samples from different sewage sludge industrial composting facilities were evaluated. In addition, fecal bacteria indicators and pathogens, such as Salmonella, were isolated from samples collected at key stages of the process and characterized for antibiotic resistance to macrolide, β-lactam, quinolone, and aminoglycoside families. 16S rRNA phylogeny data revealed that the process clearly evolved toward a prevalence of Firmicutes and Actinobacteria phyla, removing the fecal load. Moreover, antibiotic-resistant microorganisms present in the raw materials were reduced, since these were isolated only in the bio-oxidative phase. Therefore, industrial composting of sewage sludge results in a bio-safe final product suitable for use in a variety of applications.

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“…the NH 3 rather than the adsorption process on the particle surface (Dias et al, 2010). In addition, the mixing of biochar with the composting mixture at the beginning of composting enhanced the community of nitrifying and denitrifying bacteria, which can degrade aromatic compounds (Zainudin et al, 2020). Therefore, further biological studies are recommended to be carried out.…”

Section: Discussionmentioning

confidence: 99%

Effect of biochar addition method on ammonia volatilization and quality of chicken manure compost

El-Rahim

Dou

Liu

et al. 2021

Zemdirbyste-Agriculture

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Composting chicken manure causes negative impacts on environmental ecosystem by increasing ammonia (NH 3 ) emissions. Split addition of maize straw-derived biochar (Bi) during composting of chicken manure may promote the composting process, increase the quality of produced compost and reduce NH 3 volatilization. To build composting piles, fresh chicken manure and maize straw were mixed (2:1 w/w). Biochar (10% w/w) was applied to the compost piles in different addition modes: one-time applied biochar (OTABi), 10% at the beginning of the trial, and split-applied biochar (SABi), 2.5% at 0, 3, 7 and 15 days of the composting. In addition to the control (without biochar) treatment, measurements of NH 3 emissions were performed in a bench-scale composting experiment. To evaluate the phytotoxicity and maturity of the compost, germination tests were performed in Petri dishes. Compared with the control and OTABi treatments, SABi had a great positive effect (by 40% and 33%) on the final general characteristics of the compost and reduced the cumulative NH 3 emissions. Although OTABi treatment had faster degradation during composting, it did not enhance humification. In the mature compost, the humic substances of SABi treatment were 17% and 40% higher than control and OTABi treatments. In addition, in SABi, the values of humic acid carbon (HAC) and humification index (HI) were significantly higher than in other treatments. By the end of composting, both biochar application modes exhibited low water-extractable organic carbon and high seed germination index compared with the control treatment. This study suggests that during chicken manure composting split application of biochar is a crucial practice for reducing N loss, mitigating NH 3 emissions and enhancing humification.

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Biochar enhanced the nitrifying and denitrifying bacterial communities during the composting of poultry manure and rice straw

Cited by 130 publications

References 47 publications

Biochar and Intercropping With Potato–Onion Enhanced the Growth and Yield Advantages of Tomato by Regulating the Soil Properties, Nutrient Uptake, and Soil Microbial Community

Biochar and Intercropping With Potato–Onion Enhanced the Growth and Yield Advantages of Tomato by Regulating the Soil Properties, Nutrient Uptake, and Soil Microbial Community

Industrial Composting of Sewage Sludge: Study of the Bacteriome, Sanitation, and Antibiotic-Resistant Strains

Effect of biochar addition method on ammonia volatilization and quality of chicken manure compost

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