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In the present paper the significance of a soil humus for agriculture and environment with a consideration of a modern approaches in this area is presented. The agricultural significance of the humus is appreciated since a long time but its environmental importance was noticed only in a recent time. It concerns mainly the hopes promised in a sequestration increasing of CO2 by the humus thanks to an...
Zgodnie z powszechną opinią, owady biegaczowate (Carabidae) są w większości pożądanym elementem ekosystemów ze względu na ich rolę w ograniczaniu populacji wielu szkodliwych fitofagów. Występowanie tych owadów w agrocenozach jest co najmniej od 50 lat przedmiotem badań wielu autorów. Większość tych badań dotyczy jednak wpływu różnych systemów rolniczych czy poszczególnych zabiegów agrotechnicznych...
From May to July in the years 1995-2000 studies on the numbers of density of Carabidae on two fields with different cultivation systems (intensive and conventional) were performed. Including other elements like kind of a crop and weather conditions during the investigations it was possible to compile a summary numerical index of main factors having the influence on the occurrence of Carabidae and...
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