Biochar application for the remediation of trace metals in contaminated soils: Implications for stress tolerance and crop production

Haider, Fasih Ullah; Wang, Xiukang; Farooq, Muhammad; Hussain, Saddam; Cheema, Sardar Alam; Ain, Noor ul; Virk, Ahmad Latif; Ejaz, Mukkaram; Janyshova, Uulzhan; Cai, Liqun

doi:10.1016/j.ecoenv.2022.113165

Cited by 67 publications

(20 citation statements)

References 121 publications

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“…This observation is consistent with the study of Ndiate et al [22], which showed no significant relationship for biochar or biochar-AMF interaction with soil pH. The interaction of biochar and AMF that induced increase in total soil P is a result of the large surface area provided by biochar that created a better habitat for the activities of soil microbes [71][72][73]. The ability of biochar in combination with AMF to ameliorate the harmful effects of salt stress is demonstrated in this study by an improvement in photosynthetic rate.…”

Section: Discussionsupporting

confidence: 91%

Soil Amendment with Arbuscular Mycorrhizal Fungi and Biochar Improves Salinity Tolerance, Growth, and Lipid Metabolism of Common Wheat (Triticum aestivum L.)

et al. 2022

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Salt stress in soils impacts grain crop yield. Soil amendment with biochar and arbuscular mycorrhizal alone has been analyzed to improve the growth of several crops under salinity stress. However, the combined application of biochar and arbuscular mycorrhizal fungi for the remediation of salinity and improvement of crop productivity in wheat are rarely discussed and have remained unclear. Therefore, this experiment was performed to investigate the effect with biochar (150 g biochar per each treated pot containing 3 kg soil) and/or arbuscular mycorrhizal fungi (20 g AMF inoculum containing 80% mycorrhizal roots, 100–160 spores, and extraradical hyphae per each treated pot) on the productivity of wheat (Triticum aestivum L.) under four salt stress gradients; 0, 50, 100, and 150 mM NaCl. The results show salinity significantly reduced plant height (9.9% to 22.9%), shoot fresh weight (35.6% to 64.4%), enzymatic activities (34.1% to 39.3%), and photosynthetic pigments—i.e., total chlorophyll contents (75.0%) and carotenoids contents (56.2%) of plants—as compared with control. Under exclusive biochar application, the plants were moderately tolerant to salinity stress, which was evident in their growth, moderately reduced fatty acid content, partially impaired enzymatic activity, and photosynthetic pigments, while under the exclusive AMF application, the wheat plants were relatively sensitive to salinity stress, resulting in impaired growth rate, decreased unsaturated fatty acid composition, enzymatic activity, and photosynthetic pigments. Conversely, under the co-application of biochar and AMF, wheat plants partially increased plant height (14.1%), shoot fresh biomass (75.7%), root fresh biomass (24.9%), partially increased enzymatic activity (49.5%), and unimpaired photosynthetic pigments (30.2% to 54.8%) of wheat under salinity stress. Current findings concluded that exclusive incorporation of biochar, and the synergistic application of AMF and biochar, could be utilized as a promising way to reduce the deleterious effects of salinity stress in wheat production.

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Section: Discussionsupporting

confidence: 91%

Soil Amendment with Arbuscular Mycorrhizal Fungi and Biochar Improves Salinity Tolerance, Growth, and Lipid Metabolism of Common Wheat (Triticum aestivum L.)

et al. 2022

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“…Amending the soil with organic fertilizers, which is performed by adding vermicompost, biochar, animal manure, and other organic materials, is one of the main ways for improving the fertility status of the soil [24]. As an illustration, the use of biochar in deficient soil greatly increased fertility and promoted plant growth [25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Organic Amendments: Direct Application and Residual Effects on Vegetative and Reproductive Growth of Hot Pepper

Berhe

Zergaw

Kebede

2022

The Scientific World Journal

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The high production potential of coffee and animals in the Gedeo zone that could produce huge amounts of coffee pulp and animal manure wastes has been polluting the environment. In this sense, this study was aimed at averting pollution and managing plant and animal wastes, focusing on the effect of coffee pulp and animal manure in the form of vermicompost, biochar, and ordinary compost on hot pepper vegetative and reproductive growth. A 15 ton per hectare of each treatment was applied in a randomized complete block design replicated three times. Vegetative and reproductive growth parameters (plant height, leaf number, number of branches, days to 50% flowering, total fresh biomass, number of fruits per plant, single fruit length, and fruit yield per hectare) were recorded, and the statistical difference was determined at 5% significance level using R-program. The result showed that there was a significant difference among treatments. Coffee pulp vermicompost prepared using Eisenia fetida earthworm had significantly ( P < 0.05 ) higher results in plant height, leaf number, number of branches, total fresh biomass, number of fruits per plant, single fruit length, and total yield, while the minimum values were recorded in topsoil (control treatment) and animal manure compost. The direct and residual effects of vermicompost and biochar organic amendments were the potential organic fertilizers for hot pepper fast growth and to produce enormous yield, which might be due to their nature in improving soil physicochemical and biological properties as well as nutrient uptake.

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“…Biochar is characterized by its great capability to immobilize soil contaminants through electrostatic interaction, complexation, ion exchange, precipitation and chemisorption mechanisms. Due to its physical and chemical attributes such as alkalinity, specific surface area, cation exchange capacity, porosity, and functional groups ( Ali et al., 2020 ; López et al., 2020 , 2022 ; Haider et al., 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Assessment of the application of two amendments (lime and biochar) on the acidification and bioavailability of Ni in a Ni-contaminated agricultural soils of northern Colombia

Becerra-Agudelo

López

Betancur-García

et al. 2022

Heliyon

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Biochar application for the remediation of trace metals in contaminated soils: Implications for stress tolerance and crop production

Cited by 67 publications

References 121 publications

Soil Amendment with Arbuscular Mycorrhizal Fungi and Biochar Improves Salinity Tolerance, Growth, and Lipid Metabolism of Common Wheat (Triticum aestivum L.)

Soil Amendment with Arbuscular Mycorrhizal Fungi and Biochar Improves Salinity Tolerance, Growth, and Lipid Metabolism of Common Wheat (Triticum aestivum L.)

Organic Amendments: Direct Application and Residual Effects on Vegetative and Reproductive Growth of Hot Pepper

Assessment of the application of two amendments (lime and biochar) on the acidification and bioavailability of Ni in a Ni-contaminated agricultural soils of northern Colombia

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