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Electrostatic precipitator (ESP) fly ash obtained from a thermal power plant was mixed with a slightly alkaline soil on w/w basis for use as a potting mixture for poplar nursery and investigated for its influence on microbial activity and physical properties. Application of fly ash as an amendment @ 10% was found to be optimum for bacterial population, soil dehydrogenase activity and microbial biomass...
The paper presents results on the influence of four-year simplified tillage and direct sowing in the 4-year long crop rotation on some soil structure and water stability indices. The results obtained indicate a significant influence of tillage and direct sowing on the soil structure. The experiment showed that compared with traditional tillage and direct sowing, overall soil clodiness was improved...
The description of soil solid phase structure is a key factor to understand mutual interactions of soil components: solid particles, soil solute and soil air. The model for description of the soil disordered solid phase based on the statistical theory of disordered media has been proposed. The model can be used for water retention curves modeling from known grain size distribution and bulk density...
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