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1
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Harvest index of potato crop grown under different nitrogen and water supply

100%
Mazurczyk W., Wierzbicka A., Trawczynski C.
Acta Scientiarum Polonorum. Agricultura
|
2009
|
tom 08
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nr 4
On the basis of the field experiment carried out at the Experimental Station at Jadwisin (52°29’ N; 21°03’ E), Polish mid-early potato cultivar Triada was grown on sandy loam in years 2004 and 2005 in 6 treatments, which included the application of water and nitrogen: organic (cattle manure) and mineral. Water drip irrigation and nitrogen fertigation were scheduled by the Decision Support System (DSS). Diverse water supplies and organic or mineral nitrogen did not change harvest index (HI) values, which varied between 0.7 and 0.8 at the end of the growing period. Average tuber dry matter yield, about 11.0 t∙ha⁻¹, in both years of the investigation was reached with different HI values: 0.78 for 2004, and 0.73 for 2005. Higher percentage of biomass distributed to tubers was found in 2004, which was characterized by lower cumulative thermal time and global radiation, as well as better water balance in comparison with the growing period of 2005.
2

Distribution of organic carbon [TOC] and organic nitrogen [TON] in small grain size mobile hyporheic sediments [Sitka Stream, Czech Republic]

100%
Rulik M.
Polskie Archiwum Hydrobiologii
|
2000
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tom 47
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nr 2
3

Effects of organic and inorganic nitrogen on growth, yield and quality of sapota ‘Kalipatti’

80%
Devashi V.
Journal of Fruit and Ornamental Plant Research
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2012
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tom 20
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nr 1
4

Enzymy biorące udział w mineralizacji azotu organicznego

80%
Wyczolkowski A. I., Dabek-Szreniawska M.
Acta Agrophysica. Rozprawy i Monografie
|
2005
|
nr 3[120]
5

Ammonification and nitrification in zinc-contaminated soil

80%
Zaborowska M., Wyszkowska J., Kucharski J.
Electronic Journal of Polish Agricultural Universities. Series Agronomy
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2007
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tom 10
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nr 4
6

Phosphate desorption from sediments in the Pomeranian Bay [Southern Baltic]

80%
Frankowski L., Bolalek J.
Oceanological Studies
|
1997
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tom 26
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nr 1
7

Assessment of Lake Miedwie water quality in 1998-2001

80%
Torz A., Kubiak J., Chojnacki J. C.
Acta Scientiarum Polonorum. Piscaria
|
2003
|
tom 02
|
nr 1
8

Efficiency of the small pond as a biogeochemical barrier to decrease different kinds of nitrogen in the agricultural landscape

80%
Szajdak L., Zyczynska-Baloniak I., Szczepanski M.
Polish Journal of Soil Science
|
2006
|
tom 39
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nr 1
The study included the measurement of the concentrations of N-NO₃⁻, N-NH₄⁺and organic nitrogen in the ground water of cultivated fields, and in the water of the subdrain as well as in the water of a small pond. The investigation included different forms of nitrogen in the precipitation and the run-off water. The water of the subdrain was characterized by a relatively richness in nitrates. The highest concentrations of nitrates were measured in the water of the subdrain. However, N-NH₄⁺ dominated in the precipitation water. Moreover, the contents of organic nitrogen were the highest in the water of the run-off. It was observed that 57% of the total amount of nitrogen supplies to the pond remained in a dissolved form. In general, the small pond showed a high decrease in different forms of nitrogen and showed a high degree of biological transformation. Evidently, the small pond of the agricultural landscape functions as a very efficient biogeochemical barrier.
9

Temporal variability in the chemical composition of bottom sediments in the Pomeranian Bay [Southern Baltic]

80%
Burska D., Frankowski L., Bolalek J.
Oceanologia
|
1999
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tom 41
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nr 3
10

Carbon and nitrogen content and degradation ratio of suspended matter and surface sediments of the Gulf of Gdansk in spring 1995

80%
Maksymowska D.
Oceanological Studies
|
1996
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tom 25
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nr 3
11
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Aktywnosc enzymow bioracych udzial w mineralizacji azotu organicznego w glebie pod roznymi roslinami

61%
Wyczolkowski A. I., Dabek-Szreniawska M., Bieganowski A., Zimon A.
Acta Agrophysica
|
2006
|
tom 07
|
nr 4[135]
1035-1041
12

Distribution and activity of proteolytic bacteria in the surface and subsurface water layers in the region of the Gdansk Deep

61%
Mudryk Z., Donderski W.
Oceanological Studies
|
1996
|
tom 25
|
nr 4
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