Wyniki wyszukiwania

1

Effect of selected environmental parameters on sewage sludge vermicomposting

100%

Walkowiak A.

Polish Journal of Natural Sciences

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2007

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tom 22

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nr 1

83-91

Vermicomposting of sewage sludges is one of the methods of their utilization. Not adhering to appropriate conditions of that process decreases the nutritive value of the vermicompost obtained to a significant extent, as only compost that does not pose any sanitary hazard can be utilized for natural purposes. An inappropriate content of oxygen in culture medium, too high bulk density of the medium (a degree of compression), too low or too high temperature of the vermicomposting process, improper pH, improper humidity, and a variety of other factors may negatively affect the quality of the vermicompost produced, and consequently the degree of sewage sludge neutralization. Some constraints of the vermicomposting process are strictly linked with the quantity and quality of sewage sludge. An excessive content of heavy metals in the sludge may completely exclude the possibility of sewage sludge utilization with that method. Yet, adherence to specified rules and performance of different treatments in the course of sewage sludge vermicomposting reduces, to a considerable extent, the negative impact of the abovementioned factors on vermiculture as well as on the quality of processes proceeding over the period of vermicomposting. Relatively precise determination of threshold values of factors determining the vital activity of earthworms and establishing optimal conditions of the process in which vermicompost with a high nutritive value is produced are feasible due to the possibility of running a pot culture under laboratory conditions. Results obtained this way will provide a basis for determining conditions of the vermicomposting process modified by the introduction of a physical factor, namely an electromagnetic field.

2

Związki flawonoidowe w Urtica urens L.

51%

Ellnain-Wojtaszek, M., Kowalewski Z., Walkowiak A.

Herba Polonica

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1988

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tom 34

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nr 4

3

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Badanie i ocena odrebnosci, wyrownania i trwalosci odmian traw

51%

Mucha I., Pospieszna M., Walkowiak A.

Genetica Polonica

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1994

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tom 35A

173-177

4

Związki flawonoidowe w Solanum dulcamara L.

51%

Walkowiak A., Taniocznik B., Kowalewski Z.

Herba Polonica

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1990

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tom 36

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nr 4

Z liści i kwiatów psianki slodkogórz (Solanum dulcamara L.) wyodrębniono pr^y użyciu chromatografii bibułowej, kolumnowej i cienkowarstwowej zespół związkówflawonoidowych, które określono jako: kwercetynę, kemferol, 3-glukozyd kwercetyny, 3-glukozyd kemferolu, 3-ramnog- lukozyd kwercetyny i 3-ramnoglukozyd kemferolu. W kwiatach dominowały: 3-ramnoglukozydy kwercetyny i kemferolu, a w liściach występowały głównie: 3-glukozyd i 3-ramnoglukozyd kwercetyny.

5

Odmiany kukurydzy cukrowej

38%

Walkowiak A.

Warzywa

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2005

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nr 04

6

Phytochemical investigation of the tomatillo fruit [Physalis ixocarpa Brot.,Solanaceae]

33%

Drost-Karbowska K., Ellnain-Wojtaszek M., Gawron-Gzella A., Kowalewski Z., Jankiewicz L. S., Matlawska I., Sikorska M., Szaufer-Hajdrych M., Walkowiak A.

Acta Societatis Botanicorum Poloniae

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1993

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tom 62

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nr 3-4

155-159

Ograniczanie wyników

2 Herba Polonica

1 Acta Societatis Botanicorum Poloniae

1 Genetica Polonica

1 Polish Journal of Natural Sciences

1 Warzywa

6 Walkowiak A.

3 Kowalewski Z.

1 Drost-Karbowska K.

1 Ellnain-Wojtaszek M.

1 Ellnain-Wojtaszek, M.

1 Gawron-Gzella A.

1 Jankiewicz L. S.

1 Matlawska I.

1 Mucha I.

1 Pospieszna M.

1 Sikorska M.

1 Szaufer-Hajdrych M.

1 Taniocznik B.

1 2007

1 2005

1 1994

1 1993