Effects of Enriched Biochars Containing Magnetic Iron Nanoparticles on Mycorrhizal Colonisation, Plant Growth, Nutrient Uptake and Soil Quality Improvement

Joseph, Stephen; Anawar, Hossain M.; Storer, Paul; Blackwell, Paul; Chia, Chee; Lin, Yuping; Munroe, Paul; Donne, Scott W.; Horvat, J.; Wang, Jianli; Solaiman, Zakaria M.

doi:10.1016/s1002-0160(15)30056-4

Cited by 101 publications

(39 citation statements)

References 42 publications

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“…An application of biochar increases the soil aggregation that plays an important role in the soil OM buildup 43 – 45 . Furthermore, biochar indirectly promotes the soil microbial activities, biomass and growth 46 , 47 . In addition to the above use of compost was another important factor for enhancing the soil organic matter.…”

Section: Resultsmentioning

confidence: 99%

Potential role of compost mixed biochar with rhizobacteria in mitigating lead toxicity in spinach

Zafar-ul-Hye

Tahzeeb-ul-Hassan

Abid

et al. 2020

Sci Rep

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Consumption of heavy metals, especially lead (Pb) contaminated food is a serious threat to human health. Higher Pb uptake by the plant affects the quality, growth and yield of crops. However, inoculation of plant growth-promoting rhizobacteria (PGPR) along with a mixture of organic amendments and biochar could be an effective way to overcome the problem of Pb toxicity. That’s why current pot experiment was conducted to investigate the effect of compost mixed biochar (CB) and ACC deaminase producing PGPR on growth and yield of spinach plants under artificially induced Pb toxicity. Six different treatments i.e., control, Alcaligenes faecalis (PGPR1), Bacillus amyloliquefaciens (PGPR2), compost + biochar (CB), PGPR1 + CB and PGPR2 + CB were applied under 250 mg Pb kg-1 soil. Results showed that inoculation of PGPRs (Alcaligenes faecalis and Bacillus amyloliquefaciens) alone and along with CB significantly enhanced root fresh (47%) and dry weight (31%), potassium concentration (11%) in the spinach plant. Whereas, CB + Bacillus amyloliquefaciens significantly decreased (43%) the concentration of Pb in the spinach root over control. In conclusion, CB + Bacillus amyloliquefaciens has the potential to mitigate the Pb induced toxicity in the spinach. The obtained result can be further used in the planning and execution of rhizobacteria and compost mixed biochar-based soil amendment.

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Section: Resultsmentioning

confidence: 99%

Potential role of compost mixed biochar with rhizobacteria in mitigating lead toxicity in spinach

Zafar-ul-Hye

Tahzeeb-ul-Hassan

Abid

et al. 2020

Sci Rep

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“…It was found that the phosphorus and nitrogen uptake in wheat shoots were significantly greater for a low application rate of biochar (Joseph et al, 2015;Lu et al, 2015). And biochar application positively affected above-ground biomass production and decreased in plant tissue nutrient concentrations (N and P) in maize (Rogovska et al, 2014).…”

Section: Discussionmentioning

confidence: 98%

Growth Performance, Nutrient Absorption of Tobacco and Soil Fertility after Straw Biochar Application

Zhang¹,

Zhang²,

Shen³

et al. 2016

IJAB

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A Pot experiment was conducted to study the effect of straw biochar application on growth, nutrient absorption of flue-cured tobacco and soil fertility. The tobacco height, productive leaves and leaf area were all promoted by biochar application at appropriate levels (0.2-1.0%), while they were inhibited by high-level (5%) biochar application. Growth of the root system was promoted more extensively by biochar application at all levels tested than the aboveground organs, with 5% biochar addition resulting in the highest root-shoot ratio, which also delayed the senility of tobacco root system including lateral roots. The taproot length, lateral roots and root-shoot ratio of tobacco all increased at early growth stage but decreased at latter growth stage. The biochar had different effect on N, P and K concentrations of tobacco organs. Large amount of biochar addition (5%) decreased N and P contents, but significantly increased K content in tobacco organs. Moreover, the soil bulk density decreased, while an increase was observed in soil pH and soil nutritional indicators including, organic carbon, alkali-hydrolysable N, available P and K, with the soil nutrient level highest in the 5% biochar treatment. Our results induced that 0.2-1.0% levels of straw biochar application might be appropriate in the tobacco field.

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“…Additionally, regarding Fe metabolism, biocharamended samples showed an increased abundance of genes involved in siderophore synthesis and uptake, which may be a result of increased soil pH, since iron is insoluble at higher pH values (73). Although there are few studies focused on the effects of biochar on Fe and S metabolism, there is evidence to suggest that the redox state of Fe can enhance P, N, and S availability in biochar-amended soils (74,75). The increased abundance of these genes might also coincide with the synthesis of the cytochromes, hemes, and other electron transport proteins as well as Fe-S cluster enzymes, including some of the dehydrogenases and hydrogenases, as Fe-S clusters proteins are involved in many fundamental processes, including respiration and denitrification (76).…”

Section: Discussionmentioning

confidence: 99%

Comparative Metagenomics Reveals Enhanced Nutrient Cycling Potential after 2 Years of Biochar Amendment in a Tropical Oxisol

Deem

Crow

et al. 2019

Appl Environ Microbiol

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The complex structural and functional responses of agricultural soil microbial communities to the addition of carbonaceous compounds such as biochar remain poorly understood. This severely limits the predictive ability for both the potential enhancement of soil fertility and greenhouse gas mitigation. In this study, we utilized shotgun metagenomics in order to decipher changes in the microbial community in soil microcosms after 14 days of incubation at 23°C, which contained soils from biochar-amended and control plots cultivated with Napier grass. Our analyses revealed that biochar-amended soil microbiomes exhibited significant shifts in both community composition and predicted metabolism. Key metabolic pathways related to carbon turnover, such as the utilization of plant-derived carbohydrates as well as denitrification, were enriched under biochar amendment. These community shifts were in part associated with increased soil carbon, such as labile and aromatic carbon compounds, which was likely stimulated by the increased available nutrients associated with biochar amendment. These findings indicate that the soil microbiome response to the combination of biochar addition and to incubation conditions confers enhanced nutrient cycling and a small decrease in CO 2 emissions and potentially mitigates nitrous oxide emissions.Citation Yu J, Deem LM, Crow SE, Deenik J, Penton CR. 2019. Comparative metagenomics reveals enhanced nutrient cycling potential after 2 years of biochar amendment in a tropical oxisol. Appl Environ Microbiol 85:e02957-18. https://doi.

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Effects of Enriched Biochars Containing Magnetic Iron Nanoparticles on Mycorrhizal Colonisation, Plant Growth, Nutrient Uptake and Soil Quality Improvement

Cited by 101 publications

References 42 publications

Potential role of compost mixed biochar with rhizobacteria in mitigating lead toxicity in spinach

Potential role of compost mixed biochar with rhizobacteria in mitigating lead toxicity in spinach

Growth Performance, Nutrient Absorption of Tobacco and Soil Fertility after Straw Biochar Application

Comparative Metagenomics Reveals Enhanced Nutrient Cycling Potential after 2 Years of Biochar Amendment in a Tropical Oxisol

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