Correction to: Vermiculite-Lizardite Industrial Wastes Promote Plant Growth in a Peat Soil Affected by a Cu/Ni Smelter: a Case Study at the Kola Peninsula, Russia

We designed two NGSS-aligned middle school classroom experiments to investigate the effects of biochar on plant growth and soil respiration. Biochar is a carbon-rich material, produced by heating organic matter under limited oxygen, that is added to soils to improve fertility, to promote plant growth, and as one possible strategy to help mitigate climate change. The experiments offer an ideal case study for students learning fundamentals of soil and plant interactions. Soils and biochar are accessible, are connected to global issues such as agriculture and climate change, and are the focus of ongoing research in soil science. These classroom experiments promote authentic science because students design replicated experiments, collect and analyze data, discuss variability in the data, and interpret their results in the context of recent research.

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A Study on the Farmers’ Awareness and Acceptance of Biofertilizers in Kottayam District

GIS Business ◽

10.26643/gis.v14i6.13572 ◽

2019 ◽

Vol 14 (6) ◽

pp. 425-431

Author(s):

Subin Thomas ◽

Dr. M. Nandhini

Keyword(s):

Organic Matter ◽

Nitrogen Fixation ◽

Plant Growth ◽

Plant Growth Promoting Rhizobacteria ◽

Nutrient Cycle ◽

Plant Growth Promoting ◽

Promote Plant Growth ◽

Growth Promoting ◽

Structured Questionnaire ◽

Area Data

Biofertilizers are fertilizers containing microorganisms that promote plant growth by improving the supply of nutrients to the host plant. The supply of nutrients is improved naturally by nitrogen fixation and solubilizing phosphorus. The living microorganisms in biofertilizers help in building organic matter in the soil and restoring the natural nutrient cycle. Biofertilizers can be grouped into Nitrogen-fixing biofertilizers, Phosphorous-solubilizing biofertilizers, Phosphorous-mobilizing biofertilizers, Biofertilizers for micro nutrients and Plant growth promoting rhizobacteria. This study conducted in Kottayam district was intended to identify the awareness and acceptance of biofertilizers among the farmers of the area. Data have been collected from 120 farmers by direct interviews with structured questionnaire.

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Reinforcement effect of geotextiles on shear strength of peat soil: a case study on Urmia peat

Bulletin of Engineering Geology and the Environment ◽

10.1007/s10064-021-02372-6 ◽

2021 ◽

Author(s):

Kiarash Salehi ◽

Hajir Mohammad Eisa ◽

Kazem Badv

Keyword(s):

Shear Strength ◽

Peat Soil ◽

Reinforcement Effect

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Co-Management of Sewage Sludge and Other Organic Wastes: A Scandinavian Case Study

Energies ◽

10.3390/en14123411 ◽

2021 ◽

Vol 14 (12) ◽

pp. 3411

Author(s):

Clara Fernando-Foncillas ◽

Maria M. Estevez ◽

Hinrich Uellendahl ◽

Cristiano Varrone

Keyword(s):

Anaerobic Digestion ◽

Sewage Sludge ◽

Resource Recovery ◽

Organic Wastes ◽

Industrial Wastes ◽

Wastewater Management ◽

Sewage Sludge Management ◽

The Common ◽

Green Chemicals

Wastewater and sewage sludge contain organic matter that can be valorized through conversion into energy and/or green chemicals. Moreover, resource recovery from these wastes has become the new focus of wastewater management, to develop more sustainable processes in a circular economy approach. The aim of this review was to analyze current sewage sludge management systems in Scandinavia with respect to resource recovery, in combination with other organic wastes. As anaerobic digestion (AD) was found to be the common sludge treatment approach in Scandinavia, different available organic municipal and industrial wastes were identified and compared, to evaluate the potential for expanding the resource recovery by anaerobic co-digestion. Additionally, a full-scale case study of co-digestion, as strategy for optimization of the anaerobic digestion treatment, was presented for each country, together with advanced biorefinery approaches to wastewater treatment and resource recovery.

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Physiology of Methylotrophs Living in the Phyllosphere

Microorganisms ◽

10.3390/microorganisms9040809 ◽

2021 ◽

Vol 9 (4) ◽

pp. 809

Author(s):

Hiroya Yurimoto ◽

Kosuke Shiraishi ◽

Yasuyoshi Sakai

Keyword(s):

Plant Growth ◽

Crop Yield ◽

Environmental Conditions ◽

Sole Source ◽

Current Understanding ◽

Methylotrophic Bacteria ◽

Cellular Mechanisms ◽

Diurnal Cycles ◽

Promote Plant Growth ◽

Increase Crop Yield

Methanol is abundant in the phyllosphere, the surface of the above-ground parts of plants, and its concentration oscillates diurnally. The phyllosphere is one of the major habitats for a group of microorganisms, the so-called methylotrophs, that utilize one-carbon (C1) compounds, such as methanol and methane, as their sole source of carbon and energy. Among phyllospheric microorganisms, methanol-utilizing methylotrophic bacteria, known as pink-pigmented facultative methylotrophs (PPFMs), are the dominant colonizers of the phyllosphere, and some of them have recently been shown to have the ability to promote plant growth and increase crop yield. In addition to PPFMs, methanol-utilizing yeasts can proliferate and survive in the phyllosphere by using unique molecular and cellular mechanisms to adapt to the stressful phyllosphere environment. This review describes our current understanding of the physiology of methylotrophic bacteria and yeasts living in the phyllosphere where they are exposed to diurnal cycles of environmental conditions.

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Sewage sludge application enhances soil properties and rice growth in a salt-affected mudflat soil

Scientific Reports ◽

10.1038/s41598-020-80358-2 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Yuhua Shan ◽

Min Lv ◽

Wengang Zuo ◽

Zehui Tang ◽

Cheng Ding ◽

...

Keyword(s):

Sewage Sludge ◽

Organic Carbon ◽

Plant Growth ◽

Root Growth ◽

Soil Fertility ◽

Soil Properties ◽

Soluble Sugar ◽

Soil Reclamation ◽

Rice Growth ◽

Promote Plant Growth

AbstractThe most important measures for salt-affected mudflat soil reclamation are to reduce salinity and to increase soil organic carbon (OC) content and thus soil fertility. Salinity reduction is often accomplished through costly freshwater irrigation by special engineering measures. Whether fertility enhancement only through one-off application of a great amount of OC can improve soil properties and promote plant growth in salt-affected mudflat soil remains unclear. Therefore, the objective of our indoor pot experiment was to study the effects of OC amendment at 0, 0.5%, 1.0%, 1.5%, and 2.5%, calculated from carbon content, by one-off application of sewage sludge on soil properties, rice yield, and root growth in salt-affected mudflat soil under waterlogged conditions. The results showed that the application of sewage sludge promoted soil fertility by reducing soil pH and increasing content of OC, nitrogen and phosphorus in salt-affected mudflat soil, while soil electric conductivity (EC) increased with increasing sewage sludge (SS) application rates under waterlogged conditions. In this study, the rice growth was not inhibited by the highest EC of 4.43 dS m−1 even at high doses of SS application. The SS application increased yield of rice, promoted root growth, enhanced root activity and root flux activity, and increased the soluble sugar and amino acid content in the bleeding sap of rice plants at the tillering, jointing, and maturity stages. In conclusion, fertility enhancement through organic carbon amendment can “offset” the adverse effects of increased salinity and promote plant growth in salt-affected mudflat soil under waterlogged conditions.

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Ecosystem and human health assessment in relation to aquatic environment pollution by heavy metals: case study of the Murmansk region, northwest of the Kola Peninsula, Russia

Environmental Research Letters ◽

10.1088/1748-9326/aab5d2 ◽

2018 ◽

Vol 13 (6) ◽

pp. 065005 ◽

Cited By ~ 13

Author(s):

T I Moiseenko ◽

B A Morgunov ◽

N A Gashkina ◽

V V Megorskiy ◽

A A Pesiakova

Keyword(s):

Heavy Metals ◽

Human Health ◽

Kola Peninsula ◽

Aquatic Environment ◽

Health Assessment ◽

Environment Pollution ◽

Murmansk Region

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Profiling of Plant Growth-Promoting Metabolites by Phosphate-Solubilizing Bacteria in Maize Rhizosphere

Plants ◽

10.3390/plants10061071 ◽

2021 ◽

Vol 10 (6) ◽

pp. 1071

Author(s):

Minchong Shen ◽

Jiangang Li ◽

Yuanhua Dong ◽

Hong Liu ◽

Junwei Peng ◽

...

Keyword(s):

Plant Growth ◽

Microbial Control ◽

Agricultural Practices ◽

Phosphate Solubilizing Bacteria ◽

Mean Values ◽

Plant Growth Promoting ◽

Promote Plant Growth ◽

Growth Promoting ◽

Phosphate Solubilizing ◽

Microbial Treatments

Microbial treatment has recently been attracting attention as a sustainable agricultural strategy addressing the current problems caused by unreasonable agricultural practices. However, the mechanism through which microbial inoculants promote plant growth is not well understood. In this study, two phosphate-solubilizing bacteria (PSB) were screened, and their growth-promoting abilities were explored. At day 7 (D7), the lengths of the root and sprout with three microbial treatments, M16, M44, and the combination of M16 and M44 (Com), were significantly greater than those with the non-microbial control, with mean values of 9.08 and 4.73, 7.15 and 4.83, and 13.98 and 5.68 cm, respectively. At day 14 (D14), M16, M44, and Com significantly increased not only the length of the root and sprout but also the underground and aboveground biomass. Differential metabolites were identified, and various amino acids, amino acid derivatives, and other plant growth-regulating molecules were significantly enhanced by the three microbial treatments. The profiling of key metabolites associated with plant growth in different microbial treatments showed consistent results with their performances in the germination experiment, which revealed the metabolic mechanism of plant growth-promoting processes mediated by screened PSB. This study provides a theoretical basis for the application of PSB in sustainable agriculture.

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Exploring microbial community structure and their interrelationship in tomato Rhizosphere

INTERNATIONAL JOURNAL OF EXPERIMENTAL RESEARCH AND REVIEW ◽

10.52756/ijerr.2017.v12.007 ◽

2017 ◽

Vol 12 ◽

pp. 50-57

Author(s):

Sangram Sinha ◽

Keyword(s):

Plant Growth ◽

Microbial Diversity ◽

Hot Spot ◽

Acid Tolerance ◽

Root Surface ◽

Strong Correlations ◽

Plant Microbe Interaction ◽

Biochemical Characterisation ◽

Promote Plant Growth ◽

Phosphate Solubilizing

The Rhizosphere is the small zone surrounding plants' root surface is now considered as hot spot for microbial diversity and pivotal for plant-microbe interaction. The plant-microbe interaction is very vital for plant growth, productivity and stress tolerance. The present study attempted to explore the culturable microbial diversity in the tomato Rhizosphere from agricultural fields of Haripal block of West Bengal. The study found that the Rhizosphere is rich in gram-positive rods, and further biochemical characterisation predicted Bacillus cereus as the signature genus consisting of 26% of the total bacteria characterised in this study. Pearson’s correlation coefficient of different important adaptive characters of the bacterial population revealed strong correlations between salt tolerance, exo-polysaccharide (EPS) production, acid tolerance and phosphate solubilizing activity. These interactions may be crucial for Rhizosphere colonisation and overcoming hostile environment like salinity, drought, soil acidity and ultimately promote plant growth under diverse environmental stress.

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