Towards Green Remediation: Metal Phytoextraction and Growth Analysis of Sorghum bicolor under Different Agronomic Management

Fellet, Guido; Marchiol, Luca

doi:10.4236/lce.2011.23018

Cited by 9 publications

(6 citation statements)

References 18 publications

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“…In sorghum treatments, a high biomass response was observed with mineral N (urea) fertilization, which was in accordance with Fellet and Marchiol (2011) and Marchiol et al (2007), who found greater biomass production in mineral‐fertilized sites (22.1 t ha −1 ) compared with organically fertilized sites (16.9 t ha −1 ). A higher biomass yield due to mineral fertilization has been explained by mineral fertilization causing a longer vegetative period, thereby delaying the senescence of the canopy (Fellet and Marchiol, 2011).…”

Section: Discussionsupporting

confidence: 85%

Production of Biomass Crops Using Biowastes on Low‐Fertility Soil: 1. Influence of Biowastes on Plant and Soil Quality

et al. 2016

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Land application of biosolids to low-fertility soil can improve soil quality by increasing concentrations of macronutrients and trace elements. Mixing biosolids with sawdust could reduce the risks of contaminant accumulation posed by rebuilding soils using biosolids alone. We aimed to determine the effects of biosolids and biosolids-sawdust on the plant quality and chemical composition of sorghum, rapeseed, and ryegrass. Plants were grown in a greenhouse over a 5-mo period in a low-fertility soil amended with biosolids (1250 kg N ha), biosolids-sawdust (0.5:1), or urea (200 kg N ha). Biosolids application increased the biomass of sorghum, rapeseed, and ryegrass up to 14.0, 11.9, and 4.1 t ha eq, respectively. Mixing sawdust with biosolids resulted in a growth response similar to biosolids treatments in rapeseed but nullified the effect of biosolids in sorghum. Urea fertilization provided insufficient nutrients to promote rapeseed growth and seed production, whereas seed yields after biosolids application were 2.5 t ha. Biosolids and biosolids-sawdust application enhanced plant quality by increasing element concentrations, especially Zn, and potentially toxic elements (Cd, Cr, Ni) did not exceed food safety standards. An application of 50 t ha of biosolids, equivalent to 1250 kg N ha, did not exceed current soil limits of Cu, Zn, and Cd and hence was effective in rebuilding soil without accumulating contaminants. The effect of mixing sawdust with biosolids varies with plant species but can further enhance plant nutrient quality in biomass and seeds, especially P, Cu, Zn, Mn, Fe, S, and Na.

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Section: Discussionsupporting

confidence: 85%

Production of Biomass Crops Using Biowastes on Low‐Fertility Soil: 1. Influence of Biowastes on Plant and Soil Quality

et al. 2016

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“…The bounded growth of leaf area due to the interference of CdCl 2 reflected in LAI depends on cell division and cell enlargement. Our results are positively correlated with the finding of (Hatamian et al 2020 andFellet andMarchiol, 2011), who reported that cadmium stress had a detrimental effect on leaf morphology due to the restricted growth of cells and their expansion (Nagajyoti and Sreekanth, 2010).…”

Section: Grain Yield Biological Yield and Harvest Indexsupporting

confidence: 91%

Phytotoxic Effect of Cadmium Induced Stress on LAI, CGR and Yield of Rice Plant (Oryza sativa L.)

Yomso

Siddique

2022

ASD

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Background: Cadmium is a noxious heavy metal that is commonly found in the soil while its concentration is increasing in soil because of industrialization at the global level. It does not only reduce the yield of crops but also adulterates food and underground drinkable water. The availability of Cd beyond the threshold level may cause many problems in human beings. Exposure to Cd for a short period causes inhalation, muscle pain and lung damage while for a longer time, it may cause bone and kidney-related issues. The present study aimed to study the phytotoxic effect of Cadmium-induced stress on morphological changes and their impact on the yield of rice plants. Methods: Present piece of research work was carried out on the Research Farm of Lovely Professional University, Department of Agronomy, School of Agriculture, in 2019-20. A range of five different concentrations of CdCl2 was comprised with statistical design CRD. The range of 100 to 300 ppm CdCl2 was considered to induce Cd-based stress. The standard procedures were followed to measure the growth parameters at regular intervals while the SPSS software was used to analyze the significance of the data. Result: Cadmium-induced stress was created artificially in an experiment to analyze the detrimental effect on the growth and yield of rice plants. As the externally imposed cadmium stress increased from the control set (T0), all the growth parameters along with grain yield, Biological yield hill-1 (g) and harvest index (%) started to decline till the maximum concentrations of CdCl2, i.e. 300 ppm. As per the DAT is concerned, % reduction of each parameter was also calculated to the known intensity of toxicity where the maximum % reduction was recorded at 50 DAT in the leaf area and LAI (38.47% and 38.38%) while the maximum % reduction of CGR was recorded at 50-75 DAT (35%). However, the % reduction in grain yield, biological yield hill-1 (g) and harvest index % were recorded at the highest concentration of CdCl2 (31.87, 28.70 g and 11.1%).

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“…However, higher growth response was obtained in urea treatments, likely due to higher amounts of N readily available for plant uptake compared with biosolids, as discussed for ryegrass above. The high biomass response of sorghum to mineral N (urea) fertilization was in accordance with Fellet and Marchiol (2011), who suggested that higher biomass due to mineral fertilization was caused by a longer vegetative period, delaying the senescence of the canopy. In our study, however, a mineral fertilization rate of 200 kg N ha -1 resulted in a growth response similar to control treatments without N addition, carried out by Turgut et al (2005).…”

Section: Response Of Sorghum To Mineral and Organic Soil Amendmentssupporting

confidence: 80%

Production of Biomass Crops Using Biowastes on Low‐Fertility Soil: 2. Effect of Biowastes on Nitrogen Transformation Processes

et al. 2016

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Increasing production of biowastes, particularly biosolids (sewage sludge), requires sustainable management strategies for their disposal. Biosolids can contain high concentrations of nutrients; hence, land application can have positive effects on plant growth and soil fertility, especially when applied to degraded soils. However, high rates of biosolids application may result in excessive nitrogen (N) leaching, which can be mitigated by blending biosolids with other biowastes, such as sawdust. We aimed to determine the effects of biosolids and sawdust on growth and N uptake by sorghum, rapeseed, and ryegrass as well as N losses via leaching. Plants were grown in a greenhouse over a 5-mo period in a low-fertility soil amended with biosolids (1250 kg N ha), biosolids-sawdust (0.5:1), or urea (200 kg N ha). Urea application increased biomass production of sorghum and ryegrass but proved insufficient for rapeseed on low-fertility soil. Biosolids application increased plant N concentrations in ryegrass and rapeseed and increased N uptake into the seeds of sorghum, increasing seed quality. Biosolids application did result in lower N leaching compared with urea, irrespective of plant species, and N leaching was unaffected by mixing the biosolids with sawdust. There was an indication of biological nitrification inhibition in the rhizosphere of sorghum. Rapeseed had similar growth and N uptake into biomass in biosolids and biosolids-sawdust treatments and hence was the most promising species with regard to recycling fresh sawdust in combination with high rates of biosolids on low-fertility soil.

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Towards Green Remediation: Metal Phytoextraction and Growth Analysis of Sorghum bicolor under Different Agronomic Management

Abstract: ABSTRACT

Cited by 9 publications

References 18 publications

Production of Biomass Crops Using Biowastes on Low‐Fertility Soil: 1. Influence of Biowastes on Plant and Soil Quality

Production of Biomass Crops Using Biowastes on Low‐Fertility Soil: 1. Influence of Biowastes on Plant and Soil Quality

Phytotoxic Effect of Cadmium Induced Stress on LAI, CGR and Yield of Rice Plant (Oryza sativa L.)

Production of Biomass Crops Using Biowastes on Low‐Fertility Soil: 2. Effect of Biowastes on Nitrogen Transformation Processes

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