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1
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Positive and Negative Effects of Addition of Organic Carbon and Nitrogen for Management of Sulfuric Soil Material Acidity under General Soil Use Conditions

100%
Michael P. S.
Polish Journal of Soil Science
|
2021
|
vol. 54
|
issue 1
EN
This paper reports the findings of two studies conducted to investigate the effects on pH, Eh and sulfate content of sulfuric soil material of acid sulfate soil following the addition of organic carbon and nitrogen. The first study compared the responses to simple carbon sources (glucose, sodium acetate and molasses) with complex organic matter in the form of chopped Phragmites. The second experiment considered the effect of nitrogen by testing organic matter with varying nitrogen content. The results of the first study showed that the changes in Eh and sulfate contents induced by these treatments mirrored the changes in pH, the highest change being only 5.6 units induced by sodium acetate. These results showed that organic carbon alone was ineffective in treating sulfuric soil material acidity, and that nitrogen was needed. Lucerne hay which had the highest nitrogen content produced the largest increase in pH by 4.2 units, and the changes of pea straw and wheat straw was 3.2 units. It was proposed that the alkalinising effect of the treatments was mediated by anaerobic microbial metabolism which required sources of nitrogen as well as organic carbon. The changes in soil redox conditions by -150 mV measured indicated that sulfur-reducing bacteria induced the changes in Eh, which caused pH to increase and sulfate content to decrease in comparison with nitrate-reducing bacteria. The findings of these studies have implications for management of sulfuric soil material acidity.
2
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Effect of combustion wastes and sewage sludge compost on the chemical properties of soil

75%
Krzywy-Gawrońska E.
Polish Journal of Chemical Technology
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2013
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vol. 15
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issue 3
48-54
EN
A field experiment was conducted univariate in 2008-2010 in the Variety Assessment Station in Szczecin - Dąbie. The soil on which the experience was based is made of light loamy sand (pgl). In terms of granulometric composition it includes it into the category of light soils, agricultural suitability complex IV b, good (5). The experiment included, inter alia, waste compost produced with municipal sewage sludge produced by *GWDA and ash from brown coal (waste grate). No normal ranges for heavy metals being specified in the ministerial regulations were used for environmental purposes, which are maximum 20, 500, 750, 300, 1000 and 16 mg per 1 kg dry matter for cadmium, chromium, lead, nickel, copper and mercury, respectively16 were exceeded in the sewage sludge being used to produce the compost. The field experiment design consisted of 6 fertilisation objects. A test plant was Virginia fanpetals (Sida hermaphodrita Rusby). The content of available phosphorus, potassium and magnesium in the soil, being fertilised with municipal SSC with and without an addition of high-calcium BCA, changed after three years. There was an increase in the content of available phosphorus, potassium and magnesium forms, on average by 8.5%, 16.0% and 9.0%, respectively. When analysing the chemical properties of soil before and after this study, it may be stated that respective systems of municipal sewage sludge compost and high-calcium brown coal ash application differently affected most soil richness indices. The best fertilisation effects were obtained in the system with municipal sewage sludge compost being applied at a dose corresponding to 250 kg N ∙ ha-1 as well as with high-calcium brown coal ash at a dose corresponding to 1.5 Mg CaO ∙ ha-1 being introduced into soil in the first year of study and at a dose corresponding to 0.75 Mg CaO ∙ ha-1 in successive years. Fertilisation with municipal sewage sludge compost without and with addition of high-calcium brown coal ash favourably affected the preservation of soil environment stability and improvement of soil chemical composition
3
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Relationships between development of organic− rich shallow shelf facies and variation in isotopic composition of pyrite (Middle Triassic, Spitsbergen)

75%
Karcz P., Karcz P.
Polish Polar Research
|
2010
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issue 3
4
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Distribution of bacteria, organic carbon and amino acids in the southern part of Drake Passage and in Bransfield Strait during the BIOMASS - SIBEX (December1983 —January 1984)

75%
Zdanowski M. K., Zdanowski M. K.
Polish Polar Research
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1985
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vol. 6
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issue 1-2
5
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Reconstruction of postglacial paleoproductivity in Long Lake, King George Island, West Antarctica

75%
Yoon H.-I., Khim B.-K., Lee K., Park Y.-H., Yoo K.-C., Yoon H.-I., Khim B.-K., Lee K., Park Y.-H., Yoo K.-C.
Polish Polar Research
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2006
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vol. 27
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issue 3
6
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Depositional conditions and petroleum potential of the Middle Triassic Passhatten Member (Bravaisberget Formation), Spitsbergen

63%
Karcz P.
Polish Polar Research
|
2014
|
issue 1
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