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1

Soil hygiene in vicinity of industrial enterprises in middle Povazie region

100%
Vollmannova A., Jezo P., Arvay J.
Ochrona Środowiska i Zasobów Naturalnych
|
2009
|
nr 40
2

The relationship of heavy metals (Cd, Pb) content in soil to their contenet in amaranth seeds

100%
Bystricka J., Vollmannova A., Musilova J., Urminska D.
Ochrona Środowiska i Zasobów Naturalnych
|
2011
|
nr 48
3

Influence of physicochemical properties of soil on Mn bioavailability

100%
Halasova M., Vollmannova A., Tomas J.
Biuletyn Magnezologiczny
|
2001
|
tom 06
|
nr 3
Manganese contents in various extracts (2 M HN03, 0.05 M EDTA and 0.01 M CaCl2) and total Mn content in soil samples of various soil types from 6 regions of Slovakia were determined. After simulated loading the Mn extraction in 2 M HN03 decreased in order Lgp > Hcf > Jc Chc > Lga > Rc. The same order was also in 0.05 M EDTA and 0.01 M CaCl2. The results showed that Mn extractability is significantly determined by physicochemical soil properties (soil reaction, humus content and quality). Acid soils with a low humic acid content and high fulvoacid content appeared to be the highest risk soils.
4

Suppression of possible phytotoxic Mn effects in a soil-plant system

100%
Vollmannova A., Tomas J., Halasova M., Lazor P.
Biuletyn Magnezologiczny
|
2001
|
tom 06
|
nr 4
In a pot trial with spring barley negative influence of increasing Mn doses applied in the form of MnS04 H20 to acid soil and partial elimination of Mn by changing soil reaction were confirmed. The results proved that manganese is potentially phytotoxic at about 1000 mg Mnkg-1 d.w. and that the risk of Mn input to the human food chain) could be reduced by soil liming.
5

Quantification of S ambient concentrations by sorption-cumulative method of the Slovac Republic in the Region of Upper Nitra

100%
Lazor P., Tomas J., Vollmannova A., Toth T.
Biuletyn Magnezologiczny
|
2001
|
tom 06
|
nr 4
Emission of sulphur compounds was absorbed from the atmosphere to an alkaline surface of a filter containing sodium carbonate in the region of Nitra - Malanta. Sulphates were determined by titration with ethanolic solution of Ba(C104)2. Results from January 1st - December 31st 1999 show that mean S02 concentrations at Nitra were 18.3 ug.m-3 S02 and 15.4 mg ■ m-2- d-1 SO2. The average (January 1st - December 31st 2000) value of area fallout was 11.6 mg m-2 d -1 S02 and the value of content concentration was 14.9 ug m-3 S02. The area fallout of emission of S is connected with the given meteorological situation (precipitation, average temperature, direction and speed of wind). The fact was confirmed by the results of our experiment.
6

Minority cereals cultivated under loaded model conditions

88%
Harangozo L., Timoracka M., Arvay J., Vollmannova A., Trebichalsky P.
Ochrona Środowiska i Zasobów Naturalnych
|
2013
|
tom 24
|
nr 2(56)
7

Utilization of ground magnesite rock as magnesium manure

88%
Tomas J., Lazor P., Vollmannova A., Toth T., Halasova M.
Biuletyn Magnezologiczny
|
2001
|
tom 06
|
nr 3
According to the valid STN, a semi-product is as a suitable manure containing magnesium and calcium after removing the fraction above 0.5 mm. On average, the semi-products and raw materials analysed contain 86.64% MgC03 and 8.30% CaC03, which corresponds to 46.46% MgO and 4.65% CaO. They are also suitable for organic agriculture, which demands sufficient contents of magnesium in farm products. An essential portion of magnesium is bound in carbonates, complemented by magnesium in silicate forms. The products have relatively high contents of manganese (1643,68 mg kg-1), although its mobilisable percentage is barely 0.3%. Other controlled microelements (Cu, Zn, Co) are also present in forms unsuitable for vegetables.
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