Wyniki wyszukiwania

1

Improving soil test interpretation for P and K fertilizer recommendations for arable crops

100%

Kuchenbuch R. O., Buczko U.

Nawozy i Nawożenie

|

2009

|

nr 37

2

Variation in species spectrum of hoverflies [Diptera, Syrphidae] in arable crops depending on the collection method

100%

Sobota G., Twardowski J.

Electronic Journal of Polish Agricultural Universities. Series Biology

|

2004

|

tom 07

|

nr 2

The studies were carried out at the Experimental Station of the Agricultural University in Wrocław in 1998-2002. The aim of the study was to compare the species spectrum of hoverflies (Diptera, Syrphidae) collected by different methods. Four methods were applied: collection in yellow water traps, sweeping, direct collection, and rearing of the pupae collected directly from cultivated plants in the field. In the yellow traps, various and numerous species of Syrphidae were captured, but weather conditions had strong effect on their abundance. In some years, in yellow traps there were found species (Metasyrphus corollae, Melanostoma mellinum) that only foraged for food or were on migration towards south of Europe and that were absent or scarce among hoverflies reared from the pupae. Hoverflies collected using a sweeping net or directly were usually not numerous and represented mainly two genera: Sphaerophoria and Melanostoma.

3

Possibility of reduced soil tillage for winter wheat in East-Croatia conditions

100%

Stipesevic B., Zugec I., Juric I., Petrac B.

Bibliotheca Fragmenta Agronomica

|

1997

|

tom 2B

4

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

The rate of egg laying and hatching of the slug Arion lusitanicus Mabille, a pest of arable crops

100%

Kozlowski J., Sionek R.

Journal of Plant Protection Research

|

2000

|

tom 40

|

nr 2

The experiments were carried out in Rzeszów, a region of the Arion lusitanicus mass occurrence, and also in Poznań. The studies were performed under field conditions, in isolators dug inio the ground. It was found that the slug began egg laying by the end of the first decade of August. The period of egg laying, depending on meteorological conditions, lasted for 2-3.5 months. The eggs were laid in clutches, each containing from 5 to 193 eggs. Most of eggs laid in August hatched before winter. For the eggs laid in mid-August the period of hatching was shorter than those laid at the turn of August/September, and the percentage of hatched eggs was lower. Eggs deposited at later dates (in September-November) did not hatch before winter.

Ograniczanie wyników

1 Bibliotheca Fragmenta Agronomica

1 Electronic Journal of Polish Agricultural Universities. Series Biology

1 Journal of Plant Protection Research

1 Nawozy i Nawożenie

1 Buczko U.

1 Juric I.

1 Kozlowski J.

1 Kuchenbuch R. O.

1 Petrac B.

1 Sionek R.

1 Sobota G.

1 Stipesevic B.

1 Twardowski J.

1 Zugec I.

1 2009

1 2004

1 2000

1 1997

Improving soil test interpretation for P and K fertilizer recommendations for arable crops

Variation in species spectrum of hoverflies [Diptera, Syrphidae] in arable crops depending on the collection method

Possibility of reduced soil tillage for winter wheat in East-Croatia conditions

The rate of egg laying and hatching of the slug Arion lusitanicus Mabille, a pest of arable crops