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The effect of soil contamination with diesel oil and petrol on the nitrification process

100%

Kucharski J., Tomkiel M., Boros E., Wyszkowska J.

Journal of Elementology

2010

tom 15

nr 1

111-118

The effect of soil contamination with diesel oil and petrol on the nitrification process was investigated in a laboratory experiment. Samples of typical brown soil developed from loamy sand, of pH of 6.6 in 1M KCl, Hh -11.38 mmol+ kg-1 soil, S — 77.67 mmol+ kg-1 soil and Corg - 8.50 g kg-1 were analyzed. The experiment was performed in three replications, and for each test 100 g air-dry soil sample was placed in 150 cm3 beakers. Soil samples were contaminated with diesel oil and petrol with the addition of rapeseed oil and ethanol. The source of nitrogen was ammonium sulfate in the amount of 0 and 250 mg N per kg-1 soil. The content of N-NO3- and N-NH4+ was determined on experimental days 14, 28 and 42. Soil moisture was kept constant at 50% capillary water capacity throughout the experiment. Fertilizer nitrogen was subject to strong immobilization in soil contaminated with diesel oil and petrol. Both pollutants strongly inhibited the nitrification process. Diesel oil had a much stronger inhibitory effect on nitrification than petrol. Rapeseed oil also proved to be a powerful inhibiting factor. On experimental day 42, diesel oil reduced ammonium cation oxidation by 99%, and petrol - by 88%.

The use of microbial activity to predict effects of herbicide clomazone on soil ecosystem

84%

Cycon M., Piotrowska-Seget Z.

Pestycydy

2007

nr 1-2

Ograniczanie wyników

1 Journal of Elementology

1 Pestycydy

1 Boros E.

1 Cycon M.

1 Kucharski J.

1 Piotrowska-Seget Z.

1 Tomkiel M.

1 Wyszkowska J.

1 2010

1 2007

Wyniki wyszukiwania

The effect of soil contamination with diesel oil and petrol on the nitrification process

The use of microbial activity to predict effects of herbicide clomazone on soil ecosystem