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Maize-weed interaction of different tillage treatments in North-Eastern Croatia

100%

Stefanic E. , Stefanic I.

Bibliotheca Fragmenta Agronomica

1997

tom 2B

Airborne ragweed pollen concentration in North-Eastern Croatia and its relationship with meteorological parameters

80%

Stefanic E. , Kovacevic V. , Lazanin Z.

Annals of Agricultural and Environmental Medicine

2005

tom 12

nr 1

Airborne ragweed pollen concentration in the north-eastern part of Croatia was investigated in relation to some meteorological factors. Data was obtained for three consecutive years (2001, 2002 and 2003) using volumetric method (Burkard trap). The correlation between the concentration of pollen grains in the atmosphere and maximum, minimum and mean daily temperature, daily temperature range, sunshine hours, relative humidity and precipitation from daily monitoring was studied. The critical ragweed pollen season appears from 33rd to 38th week, with its peak at the beginning of September each year. Statistically significant correlation between the ragweed pollen count and selected meteorological variables were found in some study years, but only a correlation with the mean air temperature and ragweed pollen presence in the air was significant over time.

Economic analysis of different tillage management in North-Eastern Croatia

80%

Stefanic I. , Stefanic E. , Petrac B.

Bibliotheca Fragmenta Agronomica

1997

tom 2B

Annual variation of airborne pollen in the city of Vinkovci, Northeastern Croatia

80%

Stefanic E. , Rasic S. , Merdic S. , Colakovic K.

Annals of Agricultural and Environmental Medicine

2007

tom 14

nr 1

Pollen concentration in the atmosphere of Vinkovci (northeastern Croatia) has been analyzed using a Hirst-type volumetric spore trap. During the year 2005, 58 pollen types were recorded with the sum of annual totals of 14,011. The pollen spectrum refl ected the fl oristic diversity of the region. Non-arboreal pollen predominantly contributed to the total pollen sum with a percentage of 81.80%. The main pollen producers characterized by allergenic pollen were: Betula, Quercus, Fraxinus, Populus, Pinus, Urticaceae, Ambrosia, Poaceae, Plantago and Artemisia. Urticaceae was the most frequent and most abundant pollen type accounting for 46.58% of the total annual pollen, followed by Ambrosia (19.66%) and Poaceae (11.01%).