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Recommendation systems for nitrogen - a review

100%

MacKenzie G. H., Taureau J.-C.

Nawozy i Nawożenie

2001

tom 03

nr 4[09]

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Occurrence of nitrogen cycle bacteria in the Biebrza River

84%

Frak M., Kardel I., Jankiewicz U.

Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

2012

tom 44

nr 1

This paper of the selected groups of nitrogen cycle bacteria in the Biebrza River was analysed. In the water samples the quantity of ammonifying bacteria, nitrifying bacteria, proteolitic bacteria was estimated and also selected water quality indicators were analysed. Large quantities of proteolitic bacteria and ammonifying bacteria were found while the quantity of nitrifying bacteria was very small. Water quality analyses proved high TOC concentrations and low nitrate as well as nitrite concentrations. It was found, that the mineral forms of nitrogen being the intensive product of organic matter degradation is not released (low concentrations of ammonia), but it is accumulated in microorganisms cells. Low concentrations of ammonia are limiting for the number of nitrifying bacteria. The seasonal character of the occurrence of all analysed bacteria groups was as well found. The analytical procedure used was adjusted for bacteriological research on rivers of low anthropopressure.

The impact of nitrogen cycle in agriculture on the environmental quality

84%

Sapek B., Sapek A.

Ochrona Środowiska i Zasobów Naturalnych

1999

tom 18

Gaseous loss of oxides of nitrogen from the agricultural nitrogen cycle

67%

Rolston D. E., Venterea R. T.

Nawozy i Nawożenie

2001

tom 03

nr 4[09]

The effect of humic substances on nitrogen cycle bacteria

67%

Piechowiak M., Kraska M.

Oceanological and Hydrobiological Studies

2008

tom 37

nr Suppl.1

Nitrogen cycling in grassland systems

67%

Watson C. J.

Nawozy i Nawożenie

2001

tom 03

nr 4[09]

Ograniczanie wyników

3 Nawozy i Nawożenie

1 Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

1 Oceanological and Hydrobiological Studies

1 Ochrona Środowiska i Zasobów Naturalnych

1 Frak M.

1 Jankiewicz U.

1 Kardel I.

1 Kraska M.

1 MacKenzie G. H.

1 Piechowiak M.

1 Rolston D. E.

1 Sapek A.

1 Sapek B.

1 Taureau J.-C.

1 Venterea R. T.

1 Watson C. J.

1 2012

1 2008

3 2001

1 1999

Wyniki wyszukiwania

Recommendation systems for nitrogen - a review

Occurrence of nitrogen cycle bacteria in the Biebrza River

The impact of nitrogen cycle in agriculture on the environmental quality

Gaseous loss of oxides of nitrogen from the agricultural nitrogen cycle

The effect of humic substances on nitrogen cycle bacteria

Nitrogen cycling in grassland systems