Earthworks - Soil treatment tests

2021 ◽  
Keyword(s):  
Soil Treatment

Evaluating Microbial Purification during Soil Treatment of Wastewater with Multicomponent Tracer and Surrogate Tests

2004 ◽  
Vol 33 (1) ◽  
pp. 316 ◽  
Author(s):  
Sheila Van Cuyk ◽  
Robert L. Siegrist ◽  
Kathryn Lowe ◽  
Ronald W. Harvey
Keyword(s):  
Soil Treatment

scholarly journals Edaphic factors and plants influence denitrification in soils from a long-term arable experiment

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Ian M. Clark ◽  
Qingling Fu ◽  
Maïder Abadie ◽  
Elizabeth R. Dixon ◽  
Aimeric Blaud ◽  
...  
Keyword(s):  
Gas Production ◽  
Soil Treatment ◽  
Soil Microbiome ◽  
Arable Soils ◽  
Experimental Conditions ◽  
Mineral N ◽  
Nitrate Availability ◽  
Denitrification Gene ◽  
Denitrification Genes

Abstract Factors influencing production of greenhouse gases nitrous oxide (N2O) and nitrogen (N2) in arable soils include high nitrate, moisture and plants; we investigate how differences in the soil microbiome due to antecedent soil treatment additionally influence denitrification. Microbial communities, denitrification gene abundance and gas production in soils from tilled arable plots with contrasting fertilizer inputs (no N, mineral N, FYM) and regenerated woodland in the long-term Broadbalk field experiment were investigated. Soil was transferred to pots, kept bare or planted with wheat and after 6 weeks, transferred to sealed chambers with or without K15NO3 fertilizer for 4 days; N2O and N2 were measured daily. Concentrations of N2O were higher when fertilizer was added, lower in the presence of plants, whilst N2 increased over time and with plants. Prior soil treatment but not exposure to N-fertiliser or plants during the experiment influenced denitrification gene (nirK, nirS, nosZI, nosZII) relative abundance. Under our experimental conditions, denitrification generated mostly N2; N2O was around 2% of total gaseous N2 + N2O. Prior long-term soil management influenced the soil microbiome and abundance of denitrification genes. The production of N2O was driven by nitrate availability and N2 generation increased in the presence of plants.

CORRELATION BETWEEN BACTERIAL NUMBERS AND CARBON DIOXIDE IN A FIELD SOIL

1957 ◽  
Vol 3 (2) ◽  
pp. 191-194 ◽  
Author(s):  
P. H. H. Gray ◽  
R. H. Wallace
Keyword(s):  
Carbon Dioxide ◽  
Crop Residues ◽  
Soil Treatment ◽  
Soil Conditions ◽  
Field Soil ◽  
Plate Method

Bacterial numbers, estimated by the plate method, and carbon dioxide were significantly correlated (r = 0.50–0.69) in field soil during 1955, in an experiment designed to test the effects of straw and crop residues on soil conditions. Differences in moisture, temperature, and soil treatment did not interfere with the correlation.

scholarly journals Transport of Pathogen Surrogates in Soil Treatment Units: Numerical Modeling

Water ◽  
2014 ◽  
Vol 6 (4) ◽  
pp. 818-838 ◽  
Author(s):  
Ivan Morales ◽  
Janet Atoyan ◽  
José Amador ◽  
Thomas Boving
Keyword(s):  
Numerical Modeling ◽  
Soil Treatment

scholarly journals Potential use of fly ash to soil treatment in the Morava region

2017 ◽  
Vol 236 ◽  
pp. 012091
Author(s):  
Lucia Bulíková ◽  
František Kresta ◽  
Martin Rochovanský
Keyword(s):  
Fly Ash ◽  
Soil Treatment ◽  
Potential Use
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