Spectroscopic analyses to study the effect of biochar and compost on dry mass of canola and heavy metal immobilization in soil

Mahmoud, Esawy; Mahmoud, I.Y.; Ali, Nehal; Ali, Hanan

doi:10.1080/00103624.2018.1492601

Cited by 19 publications

(10 citation statements)

References 45 publications

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“…Improvement of soil CEC and SOC may be due to the functional groups (e.g. hydroxyl and carboxylate) in compost and biochar 14 , 33 , 34 or due to the release of low-molecular weights of organic substances as results of mineralization of the added organic amendments 14 , 35 .…”

Section: Discussionmentioning

confidence: 99%

“…Biochar is characterized by its higher content of more stable organic carbon compounds compared to compost, and thus it slowly decomposes in the soil 34 , 36 , thus, it becomes more effective in improving the soil physiochemical properties 36 . The decomposing organic materials in compost encourage the growth of soil microorganisms and increase the activity of soil enzymes 43 , 48 .…”

Section: Discussionmentioning

confidence: 99%

“…The decomposing organic materials in compost encourage the growth of soil microorganisms and increase the activity of soil enzymes 43 , 48 . The integrated effect of compost and biochar improves the physicochemical properties of soil and increases the activity of soil enzymes and microorganisms better than the single additives 33 , 34 .…”

Section: Discussionmentioning

confidence: 99%

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Biochar and compost enhance soil quality and growth of roselle (Hibiscus sabdariffa L.) under saline conditions

Liu

Ding

Ali

et al. 2021

Sci Rep

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Soil amendments may increase the slate tolerance of plants consequently; it may increase the opportunity of using saline water in agricultural production. In the present pot trial, the effects of biochar (BIC) and compost (COM) on roselle (Hibiscus sabdariffa L.) irrigated with saline water (EC = 7.50 dS m−1) was studied. Roselle plants were amended with biochar (BIC1 and BIC2) or compost (COM1 and COM2) at rates of 1 and 2% (w/w), as well as by a mixture of the two amendments (BIC1+). The experiment included a control soil without any amendments. Biochar and compost significantly enhanced the soil quality and nutrients availability under saline irrigation. Compost and biochar improved the degree of soil aggregation, total soil porosity and soil microbial biomass. BIC1 + COM1 increased the soil microbial biomass carbon and nitrogen over the individual application of each amendments and control soil. BIC1 + COM1 increased the activity of dehydrogenase and phosphatase enzymes. Growth of roselle plants including: plant height, shoot fresh and dry weight, and chlorophyll were significantly responded to the added amendments. The maximum sepal’s yield was achieved from the combined application of compost and biochar. All the investigated treatments caused remarkable increases in the total flavonol and anthocyanin. BIC1 + COM1 increased the total anthocyanin and flavonol by 29 and 17% above the control. Despite the notable improvement in soil and roselle quality as a result of the single addition of compost or biochar, there is a clear superiority due to mixing the two amendments. It can be concluded that mixing of biochar and compost is recommended for roselle plants irrigated with saline water.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Biochar and compost enhance soil quality and growth of roselle (Hibiscus sabdariffa L.) under saline conditions

Liu

Ding

Ali

et al. 2021

Sci Rep

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“…Wang et al [101] reported that the band associated approximately at 1040-1080 cm −1 is attributed to C-O stretching of polysaccharides or polysaccharides-like substances. Mahmoud et al [102] noted that in rice straw compost, sharp peaks associated at 1090 cm −1 showed C-O stretching of polysaccharides or polysaccharide-like substances. However, in rice straw-derived biochar, peaks decreased at 1086, which meant that after pyrolysis polysaccharide was destroyed at higher temperature.…”

Section: Ftir Analysis Of Organic Materialsmentioning

confidence: 99%

Physio-Chemical Characterization of Biochar, Compost and Co-Composted Biochar Derived from Green Waste

et al. 2021

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Organic wastes are naturally biodegradable, but they contribute to environmental pollution and management issues. Composting and pyrolysis are widely used technologies for recycling these wastes into valuable organic products for soil health and crop production. In the current study, fruits vegetables waste (FVW) was converted to biochar, compost, and co-composted biochar. The microcrystal structure, functional groups, surface morphology, and nutrient contents of organic materials were investigated by XRD, FTIR, SEM-EDS, AAS, multi C-N analyzer, and ICP-OES techniques. Heavy metals contamination was not detected in the biomass used for pyrolysis and compost preparation. FVW had an acidic pH (5.92), while biochar, compost, and co-composted biochar had an alkaline pH. Total macronutrient (K, Na, S) and micronutrient (Cu, Fe) concentrations were higher in compost and co-composted biochar, with the exception of K, which was higher in biochar. Biochar had the highest surface area (4.99 m2g), followed by FVW, compost, and co-composted biochar. Co-composted biochar had a porous structure. Si, Ca, and Al contents were common in all organic materials, while P, K, Mg, and S were found with lower concentrations in both biochar and compost. Iron was only found in compost and co-composted biochar. Quartz, sylvite, and calcite were common minerals found in all organic treatments. Biochar contained more aromatic carbon ring structure C=C/C=O and aromatic C-H bending as compared to FVW and compost, thus, making biochar a stable carbon rich material suitable for soil carbon sequestration.

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“…Hence, an appropriate method, it is essential to pursue real-time tools to perceive even small quantities of toxic chemicals [45]. Up to now, different techniques, including absorption spectrophotometry [46,47], fluorescence spectroscopy [48,49], and electrochemical method [50,51] have been established for the detection of toxic chemicals. However, the analysis includes an electrochemical technique, an effective strategy for detection, since accuracy, small sample volumes, credibility, high sensitivity and selectivity, fast response time, portable, stability, instrumental simplicity, and low cost [52,53,54].…”

mentioning

confidence: 99%

Bio-Mediated Synthesis of Nanomaterials for Electrochemical Sensor Applications

Balakumar¹,

Kumar²

2021

Materials Research Foundations

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The bio-mediated nanomaterials have expected growing responsiveness due to an increasing requirement to develop naturally nonthreatening technologies in nanomaterial synthesis. Biotic ways to prepare nanomaterials through extracts from the plant (includes stems, leaves, flowers, and roots) and microorganisms were recommended as likely replacements for physical and chemical routes due to their solvent medium and environment eco-friendliness and nontoxicity. This chapter focuses on electrocatalyst prepared by various bio-mediated synthetic ways and used as a green and eco-friendly electrocatalyst to recognize extensive chemical and biologically essential molecules with improved selectivity and sensitivity with low detection limit. The bio-mediated nanocomposite formation processes and their unique properties surface functionalization and electron transfer mechanism discussed in connection with the design and fabrication of sensors. As a final point, the encounters and prospects in developing bio-mediated nanomaterials-based electrochemical sensing technology was outlined.

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Spectroscopic analyses to study the effect of biochar and compost on dry mass of canola and heavy metal immobilization in soil

Cited by 19 publications

References 45 publications

Biochar and compost enhance soil quality and growth of roselle (Hibiscus sabdariffa L.) under saline conditions

Biochar and compost enhance soil quality and growth of roselle (Hibiscus sabdariffa L.) under saline conditions

Physio-Chemical Characterization of Biochar, Compost and Co-Composted Biochar Derived from Green Waste

Bio-Mediated Synthesis of Nanomaterials for Electrochemical Sensor Applications

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