Role of biochar and plant growth promoting rhizobacteria to enhance soil carbon sequestration—a review

Sarfraz, Rubab; Hussain, Azhar; Sabir, Asma; Fekih, Ibtissem Ben; Ditta, Allah; Xing, Shihe

doi:10.1007/s10661-019-7400-9

Cited by 90 publications

(59 citation statements)

References 81 publications

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“…These bacteria possess ACC deaminase which can convert ACC, a precursor of ethylene into ammonia and αketobutyrate, thereby reducing ethylene stress and ultimately better root growth (Avis et al 2008;Bangash et al 2013). The effect of rhizobacteria applied was enhanced with the application of algal biochar which served as a source of nutrients for bacteria as well as improved the physicochemical properties of the soil, and ultimately, bacterial growth was enhanced which caused an increase in root parameters (Chan et al 2008;Sarfraz et al 2019).…”

Section: Discussionmentioning

confidence: 99%

“…The maximum increase in organic matter was observed with the combined application of algal biochar and PGPR while that of the minimum was observed in control under various deficit irrigations. The reason might be due the presence of a stable form of organic carbon which remained for a longer period of time and ultimately increased the organic matter contents in the soil (Plaza et al 2013;Han et al 2019;Sarfraz et al 2019). Moreover, the application of biochar increases the potential to absorb more organic molecules due to its porous structure (Chan et al 2008;Muhammad et al 2017).…”

Section: Discussionmentioning

confidence: 99%

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Integrated Effect of Algal Biochar and Plant Growth Promoting Rhizobacteria on Physiology and Growth of Maize Under Deficit Irrigations

Ullah

Ditta

Khalid

et al. 2019

J Soil Sci Plant Nutr

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Drought is one of the major abiotic stresses to sustainable agriculture and global food security. The present study was conducted to evaluate the integrated effect of algal biochar (BC) and plant growth-promoting rhizobacteria (PGPR) on growth and physiology of maize under deficit irrigations. A pot experiment with different combinations of algal BC and PGPR under three deficit irrigations [field capacity (FC), 75% FC and 50% FC] was performed using maize as test crop. There were three controls without application of algal BC and PGPR under each water deficit irrigation. Both algal BC and plant growth-promoting rhizobacterial inoculation mitigated negative effects of deficit irrigations on maize performance, especially when applied in combined form. Under 50% FC, combined application of algal BC and PGPR significantly increased fresh and dry weights of shoot and root and root length by 2.76, 5.94, 3.24, 13.82, and 4.06 times compared to control, respectively. In case of physiological and nutrient uptake parameters, the same treatment caused the maximum increase in comparison to control. Post-harvest soil analysis also showed a positive treatment effect compared to their respective control. The combined application of algal BC and PGPR could be an effective strategy to improve growth and physiology of maize under deficit irrigations.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Integrated Effect of Algal Biochar and Plant Growth Promoting Rhizobacteria on Physiology and Growth of Maize Under Deficit Irrigations

Ullah

Ditta

Khalid

et al. 2019

J Soil Sci Plant Nutr

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“…Many reviews have been published about the importance of biochar for soil health, crop production, and problem soils (Agegnehu et al 2017;Al-Wabel et al 2018;Dai et al 2017;Ding et al 2017Ding et al , 2016El-Naggar et al 2019b;Juriga and Šimanský 2018;Laghari et al 2016;Lone et al 2015;Muhammad et al 2018;Munoz et al 2016;Palansooriya et al 2019;Shaaban et al 2018;Yu et al 2019), soil carbon sequestration (Sarfraz et al 2019), availability of N, P, and K (Liu et al 2019a), and decreasing drought and salinity stress in plants (Ali et al 2017). Reviews and meta-analyses also have been published focussing on soil-N dynamics such as available N (Nguyen et al 2017b), leaching and gaseous emissions of N (Borchard et al 2019;Cai and Akiyama 2017), and the overall soil-N cycle (Liu et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Biochar and its importance on nutrient dynamics in soil and plant

Hossain

Bahar

Sarkar

et al. 2020

Biochar

433

125

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Biochar, an environmentally friendly soil conditioner, is produced using several thermochemical processes. It has unique characteristics like high surface area, porosity, and surface charges. This paper reviews the fertilizer value of biochar, and its effects on soil properties, and nutrient use efficiency of crops. Biochar serves as an important source of plant nutrients, especially nitrogen in biochar produced from manures and wastes at low temperature (≤ 400 °C). The phosphorus, potassium, and other nutrient contents are higher in manure/waste biochars than those in crop residues and woody biochars. The nutrient contents and pH of biochar are positively correlated with pyrolysis temperature, except for nitrogen content. Biochar improves the nutrient retention capacity of soil, which depends on porosity and surface charge of biochar. Biochar increases nitrogen retention in soil by reducing leaching and gaseous loss, and also increases phosphorus availability by decreasing the leaching process in soil. However, for potassium and other nutrients, biochar shows inconsistent (positive and negative) impacts on soil. After addition of biochar, porosity, aggregate stability, and amount of water held in soil increase and bulk density decreases. Mostly, biochar increases soil pH and, thus, influences nutrient availability for plants. Biochar also alters soil biological properties by increasing microbial populations, enzyme activity, soil respiration, and microbial biomass. Finally, nutrient use efficiency and nutrient uptake improve with the application of biochar to soil. Thus, biochar can be a potential nutrient reservoir for plants and a good amendment to improve soil properties.

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“…As another advantage, the production of biochar occurs under oxygen-limiting (if not oxygen-absent) conditions, during which the emissions of suspended particulate matter, smoke and/or greenhouse gases (GHGs) are significantly less compared with burning or passive composting of crop residues [15,16]. At the same time, the large portion of recalcitrant carbon preserved in biochar is considerably more unsusceptible to thermal and microbial degradation [13], thus slowing down the emissions of carbon dioxide (CO 2 ) and/or methane (CH 4 ) into the atmosphere [17]. Therefore, on-farm production and application of biochar may provide multidimensional benefits that promote sustainable agronomy and circular economy [18].…”

Section: Introductionmentioning

confidence: 99%

Engineered Biochar Production and Its Potential Benefits in a Closed-Loop Water-Reuse Agriculture System

Chan

Sharbatmaleki

et al. 2020

Water

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Biochar’s potential to remove various contaminants from aqueous solutions has been widely discussed. The rapid development of engineered biochar produced using different feedstock materials via various methods for wastewater treatment in recent years urges an up-to-date review on this topic. This article centers on summarizing state-of-the-art methods for engineered biochar production and discussing the multidimensional benefits of applying biochar for water reuse and soil amendment in a closed-loop agriculture system. Based on numerous recent articles (<5 years) published in journals indexed in the Web of Science, engineered biochar’s production methods, modification techniques, physicochemical properties, and performance in removing inorganic, organic, and emerging contaminants from wastewater are reviewed in this study. It is concluded that biochar-based technologies have great potential to be used for treating both point-source and diffuse-source wastewater in agricultural systems, thus decreasing water demand while improving crop yields. As biochar can be produced using crop residues and other biomass wastes, its on-farm production and subsequent applications in a closed-loop agriculture system will not only eliminate expensive transportation costs, but also create a circular flow of materials and energy that promotes additional environmental and economic benefits.

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Role of biochar and plant growth promoting rhizobacteria to enhance soil carbon sequestration—a review

Cited by 90 publications

References 81 publications

Integrated Effect of Algal Biochar and Plant Growth Promoting Rhizobacteria on Physiology and Growth of Maize Under Deficit Irrigations

Integrated Effect of Algal Biochar and Plant Growth Promoting Rhizobacteria on Physiology and Growth of Maize Under Deficit Irrigations

Biochar and its importance on nutrient dynamics in soil and plant

Engineered Biochar Production and Its Potential Benefits in a Closed-Loop Water-Reuse Agriculture System

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